[
{
"source": "ACS 2022 P6 Prelim Q22",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Jamie paid \\$63 for a bag and 2 pencil cases. The price of a pencil case was \\(\\dfrac{2}{5}\\) the price of the bag. How much did Jamie pay for the bag? \\$[?]",
"answer0": "35",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2022 P6 Prelim Q28",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A jar of peanut butter costs \\$2.80 and a bundle of 3 jars of peanut butter costs \\$7. Samuel wants to buy exactly 26 jars of peanut butter. What is the least amount of money he needs? \\$[?]",
"answer0": "61.60",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2022 P6 Prelim Q30",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Jonathan was given a fixed amount of pocket money each month. In July, he spent \\$80 and saved the rest. In August, he spent 10% less and his savings increased by 20%. How much was Jonathan's pocket money for each month? \\$[?]",
"answer0": "120",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2022 P6 Prelim Paper2 Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mr Fam wanted to buy T-shirts for his workers. He asked them to choose one colour from yellow, blue and purple for the T-shirt. The bar graph shows the results: Yellow 12, Blue 45, Purple 27.
(a) How many workers were there altogether? [?]
(b) Mr Fam paid a total of \\$384 for the T-shirts. The prices of Yellow, Blue and Purple T-shirts were in the ratio 2 : 1 : 1. How much did Mr Fam pay for all the Purple T-shirts? \\$[?]",
"answer0": "84",
"answer1": "108",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2022 P6 Prelim Paper2 Q16",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "James used \\(\\dfrac{1}{4}\\) of his money to buy 3 pencil cases and 7 key chains. The cost of each pencil case is 3 times the cost of each key chain. He bought some more key chains with \\(\\dfrac{5}{6}\\) of his remaining money. He spent \\$30.40 more on all the key chains than on all the pencil cases. How much was the cost of one key chain? \\$[?]",
"answer0": "0.80",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2023 P6 Prelim Q8",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "The pie chart shows how Rory spent his pocket money last month. He spent \\$30 more on item D than item C. How much did he spend on item B?",
"answer0": "$70",
"answer1": "$60",
"answer2": "$45",
"answer3": "$25",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2023 P6 Prelim Q13",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "The table shows the parking charges for a motorist in a shopping centre.
7 am to 6 pm — 1st hour: \\$2.20; subsequent 30 minutes or part thereof: \\$1.50.
After 6 pm — \\$2.50 per entry.
Mr Lim parked his car from 4 p.m. to 7 p.m. How much parking charges did he pay?",
"answer0": "$6.20",
"answer1": "$6.90",
"answer2": "$7.70",
"answer3": "$8.50",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2023 P6 Prelim Q27",
"fix_types": [
"dollar_escape"
],
"type_id": 0,
"question": "The table shows the price of economical rice at four different stalls at a hawker centre.
A: lowest \\$4.20, highest \\$8.80; B: lowest \\$6.00, highest \\$10.30; C: lowest \\$3.70, highest \\$6.20; D: lowest \\$4.60, highest \\$12.50.
(a) Raymond wanted to buy food from 2 of the stalls. He had \\$8. Which two stalls could he buy food from?
(b) Xue Ling had \\$20. She bought food from one of the stalls and had \\$9.50 left. Which stall did she buy her food from?",
"answer0": null,
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2023 P6 Prelim Q28",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "BIG SALE!!! Buy first toaster oven at 10% discount. Buy second toaster oven at 20% discount. Price of 2nd toaster oven should be equal to or lower than price of 1st toaster oven.
Uncle Jaime bought 2 toaster ovens at the sale. The two toaster ovens were priced at \\$40 and \\$60. How much did he pay for the two toaster ovens? [?]",
"answer0": "86",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2023 P6 Prelim Paper 2 Q3",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The table shows the amount of money Jamie spent at a restaurant for the first three weeks. Week 1: \\$36; Week 2: \\$39; Week 3: \\$37; Week 4: ?
Jamie will get a free meal if the average amount of money he spent for three of the four weeks is \\$40 or more. What is the smallest amount Jamie must spend in Week 4 to receive the free meal? [?]",
"answer0": "44",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2023 P6 Prelim Paper 2 Q8",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Alisha bought candles of 3 different fragrances. The bar graph shows the number of each type of candle she bought. The number of candles is not shown on the scale.
(a) What percentage of the candles Alisha bought were mint candles? [?]
(b) The price of each rose candle is \\$12.80. Alisha spent \\$153.60 on rose candles. How many vanilla candles did she buy? [?]",
"answer0": "50",
"answer1": "24",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2023 P6 Prelim Paper 2 Q15",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Raju, Sam and Tristan had a total of \\$435. Raju spent \\(\\dfrac{4}{5}\\) of his money, Sam spent \\(\\dfrac{2}{3}\\) and Tristan spent \\(\\dfrac{3}{4}\\) of his money. In the end, Raju had \\$55 more than Sam and Tristan had \\$10 more than Sam. How much money did Tristan have at first? [?]",
"answer0": "80",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2023 P6 Prelim Paper 2 Q16",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Matt bought some Dino Brand and Lion Brand correction tapes. Dino Brand: 4 for \\$8.50. Lion Brand: 3 for \\$7.25. \\(\\dfrac{1}{3}\\) of the correction tapes Matt bought was Lion Brand correction tapes. He spent \\$198 more on Dino Brand correction tapes. How much did he spend on the correction tapes? [?]",
"answer0": "720",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2023 P6 Weighted Assessment 2 Q17",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Kelvin has just enough money to buy 15 files. If the price of each file is reduced by 30¢ he will be able to buy 3 more files. What is the original price of each file? Give your answer in dollars.
\\$[?]",
"answer0": "1.80",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2023 P6 Weighted Assessment 2 Q18",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Ahmad has some 10-cent, 20-cent and 50-cent coins. There are 3 times as many 50-cent coins as 20-cent coins. The number of 50-cent coins is \\(\\dfrac{3}{5}\\) of the number of 10-cent coins. The total amount of the 50-cent and 10-cent coins Ahmad has is \\$84. What is the total number of 50-cent and 10-cent coins Ahmad had?
[?]",
"answer0": "336",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2024 P6 Bite-Sized Assessment 2 Q3",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Jackson had \\$20. He spent \\$8 on a burger.
What percentage of his money did he spend on the burger?",
"answer0": "20%",
"answer1": "28%",
"answer2": "40%",
"answer3": "75%",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2024 P6 Bite-Sized Assessment 2 Q13",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A clothing store has a sale. The original price of a pair of pants was \\$75. The price of the pair of pants during the sale was \\$60. Find the percentage decrease in price. [?]",
"answer0": "20",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2024 P6 Prelim Q13",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "The table shows the rates for renting a bicycle at a shop.
First hour: \\$8
Every additional 30 min or part thereof: ?
Daisy rented two bicycles from 3.00 pm to 5.50 pm. She paid a total of \\$32 for renting the bicycles. How much did Daisy have to pay for every additional 30 min or part thereof for renting a bicycle?",
"answer0": "$6",
"answer1": "$2",
"answer2": "$8",
"answer3": "$4",
"correct_answer": 1,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2024 P6 Prelim Q29",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Zhi Xiang went to a shop to buy a bag. The shop gave a discount of \\$5 for every \\$25 spent. Zhi Xiang paid \\$96 for a bag. What was the price of the bag before the discount? [?]",
"answer0": "116",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2024 P6 Prelim Paper 2 Q1",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Christopher has \\$63.
Box of 9 cupcakes – \\$25
1 cupcake – \\$3
What is the greatest number of cupcakes he can buy? [?]",
"answer0": "22",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2024 P6 Prelim Paper 2 Q5",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Corinne saved 20% of her monthly income. In August, her income decreased by 15%. As a result, her savings in August was decreased by \\$120 compared to her savings in July. What was her income in July? [?]",
"answer0": "4000",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2024 P6 Prelim Paper 2 Q10a",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A shop sold electronic devices was having a sale. 1st item at 15% discount, 2nd item at 20% discount. Price of 2nd item must be equal or lower than the price of 1st item. Mr Poh bought a tablet at \\$230 and a laptop at \\$550. How much did he pay for the two items? [?]",
"answer0": "651.50",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2024 P6 Prelim Paper 2 Q10b",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A shop sale gives the 1st item 15% discount and the 2nd item 20% discount (2nd item priced equal or lower than the 1st). Mr Chian bought two identical smart watches. He received a total discount of \\$147. What was the price of one smart watch before the discount? [?]",
"answer0": "420",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2024 P6 Prelim Paper 2 Q16",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "At a school bookshop, erasers are only sold in packs of 4 and pencils are only sold in packs of 5. Erasers: 4 for \\$1.99. Pencils: 5 for \\$2.99. Mr Lim spent \\$139.45 buying some erasers and pencils for Children's Day. He put all the erasers and pencils into bags. The ratio of the number of erasers to the number of pencils in each bag was 2 : 3. How many pencils did he buy? [?]",
"answer0": "150",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2024 P6 Prelim Paper 2 Q17b",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Gary spent \\(\\dfrac{5}{8}\\) of his money on 10 identical notebooks and 10 identical files, then \\(\\dfrac{5}{6}\\) of his remaining money on a bag. Each file cost \\$4 more than each notebook and the bag cost \\$38 more than each notebook. How much money had Gary left? [?]",
"answer0": "8",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Anglo-Chinese School (Junior) 2025 P6 Prelim Paper 1 Q13",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "The table shows the rates for renting a bicycle at a shop.
Daniel rented a bicycle at 8.20 a.m. What is the latest time Daniel must return his bicycle if he only has \\$20 to spend on rental fees?",
"answer0": "10.20 a.m.",
"answer1": "10.50 a.m.",
"answer2": "11.20 a.m.",
"answer3": "11.50 a.m.",
"correct_answer": 1,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Anglo-Chinese School (Junior) 2025 P6 Prelim Paper 1 Q28",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "During a sale, a store gave a storewide discount of 20%. Darryl signed up as a member and received an additional 10% discount on the discounted price. He paid \\$720 for the coffee machine. What was the total amount of his discount? Ans: \\$[?]",
"answer0": "280",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Anglo-Chinese School (Junior) 2025 P6 Prelim Paper 2 Q1",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Samad saves \\$2.50 every day. For every \\$15 saved, his father will give him an additional \\$3. How much money will Samad save in 50 days? Ans: \\$[?]",
"answer0": "149",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Anglo-Chinese School (Junior) 2025 P6 Prelim Paper 2 Q2",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Eric gives \\(\\dfrac{1}{4}\\) of his income to his parents. When his income increased by 20%, his parents received \\$240 more. What is his income before the increase? Ans: \\$[?]",
"answer0": "4800",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Anglo-Chinese School (Junior) 2025 P6 Prelim Paper 2 Q6b",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The pie chart shows how Isabelle spent her money. Transport is 24% and Food is 60%.
The amount of money Isabelle saved is 25% of the amount she spent on transport.
(b) Isabelle saved \\$90. How much money did she spend in total? Ans: \\$[?]",
"answer0": "1410",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Anglo-Chinese School (Junior) 2025 P6 Prelim Paper 2 Q10c",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A shop offered 120 T-shirts at a 20% discount during a 7-day sale. The line graph shows the number of T-shirts left unsold at the end of each day.
(c) The shop collected \\$192 on Day 3 of the sale. What was the price of each T-shirt before the discount? Ans: \\$[?]",
"answer0": "15",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Anglo-Chinese School (Junior) 2025 P6 Prelim Paper 2 Q16",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "At a bookshop, erasers are sold only in packs of 8 (8 for \\$2) and pencils are sold only in packs of 5 (5 for \\$3). Mr Tan bought erasers and pencils for his company. He spent \\(\\dfrac{1}{3}\\) of his money on erasers and the rest of his money on pencils. He bought 36 more erasers than pencils. How much did Mr Tan spend altogether? Ans: \\$[?]",
"answer0": "162",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS Junior 2025 P6 WA1 Q15",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "ABC Mega Mall had a storewide sale of 70%. Mrs Suresh paid \\$570 for a laptop during the sale. What was the usual price of the laptop? \\$[?]",
"answer0": "1900",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS Junior 2025 P6 WA1 Q16",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "The table shows the prices of 3 rice dishes. Uncle Roger ordered two different types of rice dishes and paid a total of \\$13.08, including 9% GST. Which 2 rice dishes did he order?
Chicken Rice \\$5.00
Duck Rice \\$6.00
Fried Rice \\$7.00",
"answer0": "Chicken Rice and Fried Rice",
"answer1": "Chicken Rice and Duck Rice",
"answer2": "Duck Rice and Fried Rice",
"answer3": "Chicken Rice and Chicken Rice",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS Junior 2025 P6 WA1 Q18",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mrs Lee bought some muffins from a shop. The cost of each muffin is \\$2. For every 4 muffins she bought, 1 muffin was given free. Mrs Lee paid \\$252 altogether. What was the greatest number of muffins Mrs Lee would get from the shop? [?]",
"answer0": "157",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS (Junior) 2025 P6 WA2 Q14",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "The price of a muffin was \\$w. Miss Tan bought 28 muffins. She was given a discount of \\$1.50 for every 3 muffins. How much did she pay for the muffins altogether?",
"answer0": "$(28w − 13.50)",
"answer1": "$(28w + 13.50)",
"answer2": "$(28w − 14)",
"answer3": "$(28w − 42)",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS (Junior) 2025 P6 WA2 Q20",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Rishu had some money left after spending \\$104 on a pair of shoes, a cap and a book. He could not buy another similar pair of shoes with his remaining money as he was short of \\$29. He decided to buy another similar book instead and had \\$11 left in the end. (a) How much more did the pair of shoes cost than the book? (b) A pair of shoes cost 4 times as much as the cap. How much did Rishu have at first?
(a) \\$[?] (b) \\$[?]",
"answer0": "40",
"answer1": "139",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS Primary 2023 P6 Prelim Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "The average allowance of 3 siblings is \\$34. The eldest sibling received \\$50. The other two siblings received the same amount of money. How much did each of the other two siblings receive?",
"answer0": "$18",
"answer1": "$25",
"answer2": "$26",
"answer3": "$52",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS Primary 2023 P6 Prelim Q30",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The ratio of the amount of money Amil had to the amount of money Bala had to the amount of money Charles had was 8 : 3 : 5. After they each spent the same amount of money, Amil had \\$66 left. The amount of money Charles had left was 5 times that of Bala. Find the total amount of money the 3 children had at first. [?]",
"answer0": "192",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS Primary 2023 P6 Prelim Paper 2 Q1",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The cost of 3 chairs and 5 tables is \\$360. The cost of 6 chairs and 15 tables is \\$900. What is the cost of 1 table? (Round off the answer to the nearest \\$10.) [?]",
"answer0": "40",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS Primary 2023 P6 Prelim Paper 2 Q4",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mrs Lim bought a watch at a discount of 15% and she paid \\$124.10, not including GST. What is the original price of the watch including 8% GST? [?]",
"answer0": "157.68",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS Primary 2023 P6 Prelim Paper 2 Q5",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mrs Sim bought a bag for \\$140. She paid the cashier in \\$10 and \\$5 notes. If there were fifteen notes altogether, how many \\$10 notes were there? [?]",
"answer0": "13",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS Primary 2023 P6 Prelim Paper 2 Q7",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Serena has a monthly salary of \\$8650. She spent \\(\\dfrac{1}{5}\\) of her money on food. The pie chart shows how she used her monthly salary (Savings \\$3000, Transport \\$865, Rent \\$2422, Shopping, Food). (a) How much money did Serena spend on food? (b) What percentage of her salary did she spend on shopping? Give your answer correct to nearest 1%. [?] [?]",
"answer0": "1730",
"answer1": "7",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS Primary 2023 P6 Prelim Paper 2 Q10",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The table shows the charges for making an overseas call to Australia: First 15 minutes costs \\$2.60; every additional minute costs p ¢ per minute. Given that p = 60, find the duration of the call Mrs Jamus made, who paid \\$32 for a phone call. [?]",
"answer0": "64",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS Primary 2024 P6 Prelim P1 Q14",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Aaron had \\$55 more than Shanti at first. After Aaron used \\(\\dfrac{2}{5}\\) of his money and Shanti used \\(\\dfrac{1}{3}\\) of her money, Aaron had \\$27 more than Shanti. How much did Shanti have left at the end?",
"answer0": "$27",
"answer1": "$30",
"answer2": "$54",
"answer3": "$60",
"correct_answer": 3,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS Primary 2024 P6 Prelim P1 Q15",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "A sum of money was shared between John and Ken in the ratio 3 : 4. John used all his money to buy 8 identical toy cars that cost \\$1.50 each. Ken used some of his money to buy 3 such toy cars. How much money had Ken left?",
"answer0": "$4.50",
"answer1": "$11.50",
"answer2": "$12",
"answer3": "$16",
"correct_answer": 1,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS Primary 2024 P6 Prelim P1 Q23",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The table shows the prices of pens and erasers sold at a bookshop: an Eraser costs \\(b\\) cents and a Pen costs \\(2b\\) cents. Mark spent \\$4.20 on 5 erasers and 1 pen. Find the value of \\(b\\). [?]",
"answer0": "60",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS Primary 2024 P6 Prelim P2 Q29",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Peter spent \\$60 of his weekly allowance and saved the rest. During Christmas, his spending increased by 20%. As a result, his savings decreased by 10%. How much was his weekly allowance? [?]",
"answer0": "180",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS Primary 2024 P6 Prelim P2 Q3",
"fix_types": [
"dollar_escape"
],
"type_id": 0,
"question": "Ahmad bought some books which cost an average of \\$26. Two of the books cost \\$46 and \\$34 respectively. The average cost of the remaining books was \\$22. Each statement below is either true, false or not possible to tell. Statement 1: Ahmad bought more than 10 books. Statement 2: Two of the books cost an average of \\$24.",
"answer0": null,
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS Primary 2024 P6 Prelim P2 Q12",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "At first, Sam had \\(\\dfrac{2}{5}\\) as much money as Paul. Ean had \\$36 more than Sam. After Paul gave \\$98 to Sam and some money to Ean, all three boys had the same amount of money. How much did they have altogether? [?]",
"answer0": "810",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Ai Tong 2023 P6 Prelim Q6",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Ravi had 6 coins in his wallet. He took out only 4 coins to pay the exact amount for a bun. The coins are 5¢, 5¢, 10¢, 20¢, 50¢ and \\$1. Which of the following amounts is not a possible cost of the bun?",
"answer0": "$1.65",
"answer1": "$1.40",
"answer2": "$1.35",
"answer3": "$1.30",
"correct_answer": 1,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Ai Tong 2023 P6 Prelim Q14",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Meifang spent 20% of her money on a shirt. She used the rest of the money to buy a bag and a necklace. The bag cost \\$24 more than the shirt. The necklace cost \\$72. Find the cost of the bag.",
"answer0": "$56",
"answer1": "$48",
"answer2": "$40",
"answer3": "$32",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Ai Tong 2023 P6 Prelim Q17",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "7 men donated a total of \\$1435.
What is the average amount donated by each man?
\\$[?]",
"answer0": "205",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Ai Tong 2023 P6 Prelim Q21",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Candies were sold by mass: First 100 g costs \\$5, every additional 50 g costs \\$2. Rashid bought a packet of candies which weighed 250 g. How much did he pay?
\\$[?]",
"answer0": "11",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Ai Tong 2023 P6 Prelim Q27",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "At first, the ratio of Weijie's savings to Lihua's savings was 5 : 4. After each of them spent \\$40, the ratio of Weijie's savings to Lihua's savings became 13 : 10. What was Lihua's savings at first?
\\$[?]",
"answer0": "240",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Ai Tong 2023 P6 Prelim Q47",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Ms Wong received \\$6120 from selling some bags and some dresses. She received \\$3240 more for the bags than the dresses. 4 times as many bags as dresses were sold. Each dress cost \\$15 more than each bag.
(a) How much did Ms Wong receive for the bags? \\$[?]
(b) How many dresses did Ms Wong sell? [?]",
"answer0": "4680",
"answer1": "18",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Ai Tong 2023 P6 Prelim Q49",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Ali, Brandon, Carrie and Devi shared a sum of money equally at first. Ali gave \\(\\dfrac{2}{3}\\) of his money to Brandon. Brandon then gave \\(\\dfrac{1}{5}\\) of his money to Carrie. Carrie then gave \\(\\dfrac{3}{8}\\) of her money and an additional \\$55 to Devi. Devi had \\$595 in the end. How much was the sum of money they shared?
\\$[?]",
"answer0": "1440",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Ai Tong 2025 P6 Prelim Paper 1 Q25",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Jen wants to spend the least amount of money to buy 25 muffins. Each muffin is sold at \\$\\(n\\). There is a special offer: buy 2 muffins and get 1 muffin free. How much will she pay for the muffins? Express your answer in terms of \\(n\\).",
"answer0": "$17n",
"answer1": "$25n",
"answer2": "$16n",
"answer3": "$18n",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Ai Tong 2025 P6 Prelim Paper 2 Q1",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The table shows the water charges.
Volume of water: First 40 m³ at \\$1.40 per m³; each additional m³ at \\$? per m³.
Mr Chan paid \\$89 for using 60 m³ of water. How much did he pay per cubic metre for water consumption more than 40 m³? Ans: \\$[?]",
"answer0": "1.65",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Ai Tong 2025 P6 Prelim Paper 2 Q16b",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Three girls had the same number of coins. Mabel had only twenty-cent coins. Candy had 36 one-dollar coins (and twenty-cent coins). Lilian had 13 one-dollar coins.
(b) Candy used half of her one-dollar coins and some of her twenty-cent coins to buy a book that cost \\$20.40. How many twenty-cent coins did Candy use? Ans: [?]",
"answer0": "12",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Ai Tong 2025 P6 Prelim Paper 2 Q16c",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Three girls had the same number of coins. Mabel had only twenty-cent coins. Candy had 36 one-dollar coins. Lilian had 13 one-dollar coins (and twenty-cent coins). Each girl had 30 coins in total.
(c) What was the difference in the total value of Mabel and Lilian's coins? Ans: \\$[?]",
"answer0": "10.40",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Catholic High 2022 P6 Prelim Q23",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "What is the price of the tennis racket after discount? Usual Price: \\$89.
Ans: \\$[?]",
"answer0": "80.10",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Catholic High 2022 P6 Prelim Q27",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Lily bought some stickers based on the charges shown: First 10 stickers \\$7; Every additional sticker 50¢; Get 2 additional stickers free for every purchase of 30 stickers. She paid \\$17 for the stickers. How many stickers did she get in all?
Ans: [?]",
"answer0": "32",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Catholic High 2022 P6 Prelim Q29",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mrs Lee wanted to buy 9 boxes of mooncakes but she was short of \\$28. She bought 7 boxes of mooncakes and had \\$22 left. How much money did she have at first?
Ans: \\$[?]",
"answer0": "197",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Catholic High 2022 P6 Prelim Q38",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "At a bread shop, a customer could buy one additional bun at half its usual price for every 3 buns bought. Petra paid \\$16.80 for 12 buns. What was the usual price of one bun?
Ans: \\$[?]",
"answer0": "1.60",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Catholic High 2023 P6 Prelim Q14",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "After a 20% discount, the price of a T-shirt was \\$40. A first-time customer was given a further discount of \\$6. What was the total percentage discount given to a first-time customer for the T-shirt?",
"answer0": "16%",
"answer1": "26%",
"answer2": "32%",
"answer3": "40%",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Catholic High 2023 P6 Prelim Q23",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The table shows the charges for a cleaning job. First 2 hours: \\$35 per hour. Every additional hour: \\$25.
Mandy paid \\$145 for a cleaning job. How many hours of cleaning did she pay for? [?] h",
"answer0": "5",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Catholic High 2023 P6 Prelim Q28",
"fix_types": [
"dollar_escape"
],
"type_id": 0,
"question": "Cheryl had three more 50¢ coins than \\$1 coins at first. She paid \\$2.50 for a pen using 3 coins. Each statement is either true, false or not possible to tell from the information given. (a) The total value of the \\$1 coins was more than the total value of the 50¢ coins at first. (b) Cheryl had four more 50¢ coins than \\$1 coins after paying for the pen.",
"answer0": null,
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Catholic High 2023 P6 Prelim Paper 2 Q6",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "At first, Nathan had \\$92 and Mabel had \\$50. Each of them bought a book at the same price. The ratio of the amount of money Nathan and Mabel had left was 5 : 2. How much did the book cost? [?]",
"answer0": "22",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Catholic High 2023 P6 Prelim Paper 2 Q11b",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "After the 5-day sale, a customer paid \\$4600 for all the remaining laptops in Shop A at a discount of \\$50 for every \\$300 spent. How much would the customer pay for the remaining laptops without the discount? [?]",
"answer0": "5500",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Catholic High 2025 P6 Prelim Q12",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Alex and Ben had \\$190 altogether at first. After Alex gave Ben \\$30, Alex had \\$40 more than Ben. How much did Ben have at first?",
"answer0": "$45",
"answer1": "$75",
"answer2": "$120",
"answer3": "$160",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Catholic High 2025 P6 Prelim Q22",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The table shows the charges to post a parcel.
First 500 g: \\$2; Every additional 1 kg: \\$1.50.
Mr Yap posted a parcel that weighed 4.8 kg. How much did Mr Yap pay to post the parcel?
Ans: \\$[?]",
"answer0": "9.50",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Catholic High 2025 P6 Prelim Q25",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Jack wanted to buy 16 chicken wings but found that he needed another \\$5. He bought 7 chicken wings and had \\$5.80 left. What was the cost of a chicken wing?
Ans: \\$[?]",
"answer0": "1.20",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Catholic High 2025 P6 Prelim P2 Q2",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "During a sale, a laptop was sold for \\$1072 after a 20% discount. How much was the usual price of the laptop?
Ans: \\$[?]",
"answer0": "1340",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Catholic High 2025 P6 Prelim P2 Q3",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A fruit seller packed 860 apples into bags of 4 for sale. The price of each bag of apples was \\$7.80. How much money did the fruit seller collect after selling all the bags of apples?
Ans: \\$[?]",
"answer0": "1677",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Catholic High 2025 P6 Prelim P2 Q8",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A baker sold some boxes of tarts and cookies. Each box of tarts cost \\$3.10 and each box of cookies cost \\$5.50. The baker sold twice as many boxes of tarts as boxes of cookies. He earned a total of \\$1439.10. How many boxes of tarts did he sell?
Ans: [?]",
"answer0": "246",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Catholic High 2025 P6 Prelim P2 Q16",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Chloe spent \\(\\dfrac{5}{8}\\) of her money on 3 identical books and 7 identical files. The cost of each book was 3 times the cost of each file. She bought some more files with \\(\\dfrac{5}{6}\\) of her remaining money and had \\$4 left. How much did Chloe spend on the files altogether?
Ans: \\$[?]",
"answer0": "37.50",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Catholic High 2025 P6 Prelim P2 Q17",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Three boys Lionel, Michael and Nate had the same number of coins. Lionel and Michael each had a mix of fifty-cent and ten-cent coins. Lionel had 10 ten-cent coins, while Michael had 15 ten-cent coins. Nate had only fifty-cent coins.
(a) How much more money did Lionel have than Michael? Ans: (a) \\$[?]
(b) Michael used all his fifty-cent coins to buy some food. He then had \\$8 less in coins than Nate. How many fifty-cent coins did Nate have? Ans: (b) [?]",
"answer0": "2",
"answer1": "19",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Catholic High 2025 P6 WA2 Q1",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A bowl of noodles at a restaurant cost \\$27.25 including 9% GST. Find the cost of the bowl of noodles before GST.
\\$[?]",
"answer0": "25",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Catholic High 2025 P6 WA2 Q4",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The usual price of a watch is \\$320. After a 20% discount, how much does the watch cost?
\\$[?]",
"answer0": "256",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2022 P6 Prelim Q17",
"fix_types": [
"missing_blank",
"dollar_escape"
],
"type_id": 2,
"question": "Usual price: 95¢ per apple. SPECIAL OFFER: 8 apples for \\$6.00. Mrs Tan bought 8 apples during the special offer. Without the special offer, how much more would she have to pay for the 8 apples? [?]",
"answer0": "1.60",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent). Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2022 P6 Prelim Q19",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "The semicircle has a diameter of 40 cm. What is the area of the semicircle? Take \\(\\pi = 3.14\\) [?]",
"answer0": "628",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Henry Park 2022 P6 Prelim Q22",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "The figure shows a rectangular box partly filled with 1-cm cubes. What is the volume of the rectangular box? [?]",
"answer0": "105",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Henry Park 2022 P6 Prelim Q23",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "Jacky had some stickers. He gave \\(\\dfrac{1}{6}\\) of the stickers each to his two sisters. He put aside \\(\\dfrac{2}{3}\\) of his remaining stickers to be shared equally among his brothers. Each of his brothers received \\(\\dfrac{1}{9}\\) of the stickers. How many brothers did Jacky have? [?]",
"answer0": "4",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Henry Park 2022 P6 Prelim Q24",
"fix_types": [
"missing_blank",
"dollar_escape"
],
"type_id": 2,
"question": "What is the percentage discount for the shirt shown? Sale Price \\$45. Usual price: \\$75. [?]",
"answer0": "40",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent). Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2022 P6 Prelim Q25",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "Mr Lee drove for 6 hours from City A to City B. In the first two hours, he drove at an average speed of 75 km/h. For the rest of the journey, he drove at an average speed of 60 km/h. What was his average speed for the whole journey? [?]",
"answer0": "65",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Henry Park 2022 P6 Prelim Q27",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "The figure is made up of a quarter circle and an equilateral triangle. Find the perimeter of the figure. Take \\(\\pi = \\dfrac{22}{7}\\) [?]",
"answer0": "96",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Henry Park 2022 P6 Prelim Q28",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "A pyramid and its net are shown. The base of the pyramid in both diagrams is shaded. Find the perimeter of the net of the pyramid. [?]",
"answer0": "66",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Henry Park 2022 P6 Prelim Q29",
"fix_types": [
"dollar_escape"
],
"type_id": 0,
"question": "The table shows the different amounts of money donated by a group of students. Part of the table is covered by an ink blot. \\(\\dfrac{3}{4}\\) of the group of students donated at least \\$5. For each statement, state whether it is True, False, or Not possible to tell: (1) Every student in the group donated some money. (2) The group consisted of 252 students. (3) The number of students who donated \\$10 was the greatest.",
"answer0": null,
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2022 P6 Prelim Q30",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "The figure is made up of triangles WXY and ABX. The total unshaded area of the figure is 180 cm². Find the shaded area BXZ. [?]",
"answer0": "72",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Henry Park 2022 P6 Prelim Paper 2 Q1",
"fix_types": [
"missing_blank",
"dollar_escape"
],
"type_id": 2,
"question": "Ahmad had a sum of money. He could only buy 10 notebooks with all the money he had. He decided to buy 6 notebooks and 4 pens. He had \\$2.40 left. Each pen cost \\$0.80. How much money did Ahmad have at first? [?]",
"answer0": "14",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent). Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2022 P6 Prelim Paper 2 Q2",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "The bar graph shows the amount of money ABC clothing store earned from Monday to Thursday. What is the average amount of money ABC clothing store earned from Monday to Thursday? [?]",
"answer0": "450",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Henry Park 2022 P6 Prelim Paper 2 Q3",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "The figure shows a right-angled triangle and a semicircle of radius 14 cm. Use the calculator value of \\(\\pi\\) to find the perimeter of the figure. Round your answer to 2 decimal places. [?]",
"answer0": "101.98",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Henry Park 2022 P6 Prelim Paper 2 Q4",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "PQRS is a square. STR is an equilateral triangle. Find the value of \\(\\angle\\)QPT. [?]",
"answer0": "15",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Henry Park 2022 P6 Prelim Paper 2 Q5",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "UVWX is a parallelogram and XYZ is an isosceles triangle where XY = XZ. UXY and WXZ are straight lines and the sum of \\(\\angle\\)YZX and \\(\\angle\\)XWV is 147°. Find \\(\\angle\\)UVW. [?]",
"answer0": "82",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Henry Park 2022 P6 Prelim Paper 2 Q6",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "Jane and Siti had a number of beads. Jane had 432 more beads than Siti. After Jane gave away \\(\\dfrac{1}{4}\\) of her beads and Siti gave away \\(\\dfrac{5}{8}\\) of her beads, Jane had 441 more beads than Siti. How many beads did Jane have at first? [?]",
"answer0": "744",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Henry Park 2022 P6 Prelim Paper 2 Q7",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "At a paint shop, there were some identical containers. 70% of the containers were completely filled with paint. The remaining 120 containers were empty. The total volume of paint in the containers was 1400 \\(\\ell\\). What was the volume of paint in one container? Give your answer in litres. [?]",
"answer0": "5",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Henry Park 2022 P6 Prelim Paper 2 Q8",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "Jen and Grace took part in a race and both started running from the same point at the same time. After 35 min, Jen completed the race, but Grace had only run \\(\\dfrac{5}{7}\\) of the distance. Given that both girls did not change their speeds throughout the race and that Jen ran at a constant speed of 36 m/min faster than Grace, find Grace's average speed for the first 35 min. [?]",
"answer0": "90",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Henry Park 2022 P6 Prelim Paper 2 Q10a",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "The pie chart shows the number of \\$10, \\$20, \\$50 and \\$100-tickets sold by a concert organiser. \\(\\dfrac{1}{2}\\) of the number of tickets sold were \\$10-tickets. \\(\\dfrac{3}{10}\\) of the number of tickets sold were \\$20-tickets. 15% of the tickets sold were \\$50-tickets. What fraction of the tickets sold were \\$100-tickets? Express your answer in the simplest form.",
"answer0": "\\(\\dfrac{1}{20}\\)",
"answer1": "\\(\\dfrac{1}{10}\\)",
"answer2": "\\(\\dfrac{3}{20}\\)",
"answer3": "\\(\\dfrac{1}{5}\\)",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2022 P6 Prelim Paper 2 Q10b",
"fix_types": [
"missing_blank",
"dollar_escape"
],
"type_id": 2,
"question": "The pie chart shows the number of \\$10, \\$20, \\$50 and \\$100-tickets sold by a concert organiser. \\(\\dfrac{1}{2}\\) of the number of tickets sold were \\$10-tickets. \\(\\dfrac{3}{10}\\) were \\$20-tickets and 15% were \\$50-tickets. A total of \\$10 810 was collected from the sale of all the tickets. How much was collected from the sale of \\$10-tickets? [?]",
"answer0": "2300",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent). Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2022 P6 Prelim Paper 2 Q11",
"fix_types": [
"missing_blank",
"dollar_escape"
],
"type_id": 2,
"question": "A money box contained some money at first. A took \\(\\dfrac{1}{2}\\) the amount of money and another \\$1500 from the box. After that, B took \\(\\dfrac{1}{4}\\) of the remaining amount of money and another \\$850 from the box. In the end, C took the rest of the money left in the box. Given that C took \\$1400, find the amount of money in the box at first. [?]",
"answer0": "9000",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent). Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2022 P6 Prelim Paper 2 Q12",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "Sam wanted to fill an empty tank measuring 125 cm long and 80 cm wide with water. He turned on Tap A first and after 3 minutes he turned on Tap B. Both taps were turned off at the same time when the tank was filled to the brim without overflowing. The line graph shows the amount of water in the tank over 10 minutes. (a) Find the volume of the tank.
(b) In one minute, how many litres of water flowed from Tap B? [?] [?]",
"answer0": "850000",
"answer1": "90",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 2 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Henry Park 2022 P6 Prelim Paper 2 Q13",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "Last year, the ratio of the number of men to the number of women who signed up for a marathon was 5 : 4. This year, the number of men who signed up increased by 30% and the number of women who signed up decreased by 50%. A total of 4913 men and women signed up for the marathon this year. What is the difference between the total number of people who signed up for the marathon in the two years? [?]",
"answer0": "289",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Henry Park 2022 P6 Prelim Paper 2 Q14",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "Two tanks, A and B, are shown. Tank A was filled to the brim with water. Water was transferred from Tank A to Tank B until the height of the water level in both tanks are the same. What is the new height of water level in each tank? [?]",
"answer0": "18.6",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Henry Park 2022 P6 Prelim Paper 2 Q15",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "The figure shows a rectangle with 4 identical three-quarter circles. The length and breadth of the rectangle is in the ratio 13 : 10. Taking \\(\\pi = 3.14\\): (a) find the perimeter of the figure.
(b) find the area of the figure. [?] [?]",
"answer0": "124.52",
"answer1": "604.78",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 2 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Henry Park 2022 P6 Prelim Paper 2 Q16b",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "ABCD is a square and DEFG is a trapezium. AG and DH are straight lines. DG is parallel to EF. Angle BAD region shows 56° and 24° at D, and 62° at G. (i) Find \\(\\angle\\)x.
(ii) Find \\(\\angle\\)y. [?] [?]",
"answer0": "107",
"answer1": "94",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 2 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Henry Park 2022 P6 Prelim Paper 2 Q17",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "Jamina uses circles and triangles to form figures that follow a pattern. The table shows the number of triangles and circles for the first 4 figures (Figure 1: 2 triangles, 6 circles, 8 total; Figure 2: 6, 10, 16; Figure 3: 12, 14, 26; Figure 4: 20, 18, 38). (a) Complete the table for Figure 5 (triangles / circles / total).
(b) A figure in the pattern has 240 triangles. What is the Figure Number?
(c) What is the total number of triangles and circles in Figure 100? [?] [?] [?]",
"answer0": "30",
"answer1": "22",
"answer2": "52",
"answer3": null,
"correct_answer": null,
"note": "Inserted 3 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Henry Park 2024 P6 Prelim P1 Q24",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "During a sale, a shop sold t-shirts at a discount of \\$15 per t-shirt. Members were given a further discount of 25% on all purchases. Elaine is a member and paid \\$216 for 6 such t-shirts. What is the price of each t-shirt without any discount?
\\$[?]",
"answer0": "63",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2024 P6 Prelim P2 Q6",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "At first, Jason had \\$210 and Ruth had \\$154. After they both spent an equal amount of money, the amount of money Jason and Ruth each had left were in the ratio 7 : 3. How much did each of them spend?
\\$[?]",
"answer0": "112",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2024 P6 Prelim P2 Q10a",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Boxes A and B contain an equal number of coins. \\(\\dfrac{1}{4}\\) of the coins in Box A are 10-cent coins while the rest are 50-cent coins. \\(\\dfrac{1}{3}\\) of the coins in Box B are 10-cent coins while the rest are 20-cent and 50-cent coins. Given that the total value of all the coins in Box A is \\$86.40, find the total number of coins in Box B.
[?]",
"answer0": "216",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2024 P6 Prelim P2 Q10b",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Boxes A and B contain 216 coins each. \\(\\dfrac{1}{3}\\) of the coins in Box B are 10-cent coins while the rest are 20-cent and 50-cent coins. The total value of all the coins in Box B is \\$50.10. Find the number of 20-cent coins in Box B.
[?]",
"answer0": "2910",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2024 P6 Prelim P2 Q11a",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Storewide Closing Down Sale: 1st item at 40% discount, 2nd item at 50% discount (price of the 2nd item must be equal to or lower than the price of the 1st item). Mary bought 2 different bags. The original price of one bag was \\$280 while the other was \\$499. How much did she pay in total for both bags?
\\$[?]",
"answer0": "439.40",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2024 P6 Prelim P2 Q11b",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Storewide Closing Down Sale: 1st item at 40% discount, 2nd item at 50% discount. After discount, Gary spent \\$1669.80 on two identical watches. Find the price of each identical watch before discount.
\\$[?]",
"answer0": "1518",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2024 P6 Prelim P2 Q12a",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Shops Q, R and S sell ice-cream in 2 sizes. A small tub is sold for \\$12 and a big tub for \\$18. Shop Q sold 15 small and 9 big tubs; Shop R sold 10 small and 15 big tubs. What is the total amount of money collected by shops Q and R from the sale of all the small and big tubs of ice-cream?
\\$[?]",
"answer0": "732",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2024 P6 Prelim P2 Q12b",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A small tub of ice-cream is sold for \\$12 and a big tub for \\$18. Shop Q sold 15 small and 9 big tubs (24 tubs in total). Shop S sold as many tubs of ice-cream as Shop Q but collected \\$66 more. How many small tubs of ice-cream did Shop S sell?
[?]",
"answer0": "4",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2024 P6 Term Review 2 P1 Q14",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "After a discount of 25%, an adult would have to pay \\$60 for a buffet lunch. A senior citizen gets an additional discount of \\$12. Find the percentage discount given to the senior citizen for the buffet lunch.",
"answer0": "15%",
"answer1": "20%",
"answer2": "25%",
"answer3": "40%",
"correct_answer": 3,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2024 P6 Term Review 2 P1 Q25",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Shival paid \\$945 for a golf club and 4 boxes of golf balls. The price of a box of golf balls was \\(\\dfrac{2}{7}\\) of the price of the golf club. How much did Shival pay for the golf club? [?]",
"answer0": "441",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2024 P6 Term Review 2 P2 Q2",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Five boys shared the cost of a present equally. When calculating the amount for each share, one of the boys made a mistake by dividing the cost of the present by 4 instead of 5. Each boy paid \\$3.75 more than his original share. What is the cost of the present? [?]",
"answer0": "75",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2024 P6 Term Review 2 P2 Q4",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The average cost of 3 different backpacks is \\$12.70. The total cost of 2 of the backpacks is \\$16.80. What is the cost of the third backpack? [?]",
"answer0": "21.30",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2024 P6 Term Review 2 P2 Q6",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "ABC bookshop sells only 1 type of calculator. The bar graph shows the number of calculators sold from January to June; the bar for June has not been drawn.
(a) Given that the average number of calculators sold from January to June was 55, find the number of calculators sold in June. [?]
(b) The total amount collected from all the calculators sold in March was \\$1046.40 including 9% GST. Find the cost of 1 calculator excluding GST. [?]",
"answer0": "105",
"answer1": "32",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2025 P6 Prelim Q24",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A group of 10 adults and 11 children went to FunWorld Amusement Park. What was the least amount of money the group could have paid?
Child ticket price: \\$12.10. Adult ticket price: \\$22.50. Promotion: For every 3 paying adults, 2 children enter free!
Ans: \\$[?]",
"answer0": "285.50",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2025 P6 Prelim P2 Q7",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "For every mobile phone that Susan sells, she earns 10% of the first \\$160 of the selling price and 12% of the remaining selling price. Susan sold a mobile phone and earned \\$76.90. What was the selling price of the mobile phone?
Ans: \\$[?]",
"answer0": "667.50",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2025 P6 Prelim P2 Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 0,
"question": "At a shop, erasers were sold in packets of 3 and pens were sold in packets of 5. Bella paid with a \\$50-note for 9 erasers and 20 pens. How much change did Bella receive? Give your answer in terms of q. Cost per packet: Erasers \\$q, Pens \\$2q.",
"answer0": "$(50 − 11q)",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2025 P6 Prelim P2 Q10",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Julie's coin box contained 20-cent and 50-cent coins. In the coin box, there were 7 more 50-cent coins than 20-cent coins. The total amount of money in the coin box was \\$18.90.
(a) How many coins were in the coin box? Ans: [?]
(b) How much money does Julie have left in the coin box after spending all her 20-cent coins on food? Ans: \\$[?]",
"answer0": "51",
"answer1": "14.50",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2025 P6 Prelim P2 Q12",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mrs Brown bought \\(\\dfrac{2}{5}\\) as many cupcakes as pies for a party. She spent \\(\\dfrac{3}{4}\\) as much on each cupcake as each pie. Each cupcake cost \\$4.50. She paid \\$504 more on the pies than the cupcakes.
(a) How much did she pay for each pie? Ans: \\$[?]
(b) How many pies did she buy? Ans: [?]",
"answer0": "6",
"answer1": "120",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2025 P6 WA1 Q10",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Hassan earns \\$300 each week. The graph shows the amount of money he spent each week over 5 weeks. In which week did Hassan spend the most money?",
"answer0": "Week 1",
"answer1": "Week 2",
"answer2": "Week 3",
"answer3": "Week 4",
"correct_answer": 1,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2025 P6 WA1 Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Hassan earns \\$300 each week. The graph shows the amount of money he spent each week over 5 weeks. What was the total amount Hassan saved from Week 1 to Week 3?",
"answer0": "$400",
"answer1": "$500",
"answer2": "$740",
"answer3": "$760",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2025 P6 WA1 Q21",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Terry had twice as many two-dollar notes as five-dollar notes. He had \\$378 altogether. How many five-dollar notes did Terry have? [?]",
"answer0": "42",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2025 P6 WA1 Q25",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The parking rate at a shopping mall is \\$3.20 for the first hour and \\$1.60 per 30 min or part thereof after the first hour. Ben parked his car at the shopping mall from 4.45 p.m. to 7.35 p.m. How much did he have to pay for parking his car? \\$[?]",
"answer0": "9.60",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2025 P6 WA2 Q1",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Onions are sold at 25¢ per 100 g at a supermarket. What is the price of 3.6 kg of onions?
\\$[?]",
"answer0": "9",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2025 P6 WA2 Q6",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Jacob earned \\$240 from selling a carton of 12 bottles of vitamins. He sold 36 000 bottles of vitamins in total. (a) How many cartons of vitamins did he sell? (b) How much did he earn from selling all the bottles of vitamins?
(a) [?] (b) \\$[?]",
"answer0": "3000",
"answer1": "720000",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2025 P6 WA2 Q8",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "5 identical tables cost as much as 7 identical chairs. Each table cost \\$54 more than the chair. Find the total cost of the 5 tables and 7 chairs.
\\$[?]",
"answer0": "1890",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2025 P6 WA2 Q10",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Eagle Express Delivery Company charges \\$3.50 for parcels delivered on time and \\$1.80 for parcels delivered late. In May, the company could earn \\$382.50 more had all the parcels been delivered on time. (a) How many parcels were delivered late in May? (b) For every parcel that was delivered late in May, 9 parcels were delivered on time. How much did the company earn in May?
(a) [?] (b) \\$[?]",
"answer0": "225",
"answer1": "7492.50",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2025 P6 WA2 Q15",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "The pie chart shows the number of \\$10, \\$20, \\$50 and \\$100 concert tickets sold by an event organiser. The \\$100 sector is 5%, the \\$50 sector is \\(\\dfrac{3}{20}\\), and AB is a straight line. What fraction of the tickets sold were \\$20 tickets?",
"answer0": "\\(\\dfrac{3}{10}\\)",
"answer1": "\\(\\dfrac{1}{5}\\)",
"answer2": "\\(\\dfrac{3}{20}\\)",
"answer3": "\\(\\dfrac{1}{2}\\)",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Henry Park 2025 P6 WA2 Q15",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The pie chart shows the number of \\$10, \\$20, \\$50 and \\$100 concert tickets sold by an event organiser. The \\$100 sector is 5%, the \\$50 sector is \\(\\dfrac{3}{20}\\), and the \\$10 sector is half the circle. The organiser sold 160 more \\$50-tickets than \\$100-tickets. How many \\$10-tickets were sold?
[?]",
"answer0": "800",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2022 P6 Prelim Q14",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Mrs Chan only had the following coins in her wallet: 5¢, 10¢, 20¢, 50¢ and \\$1. She took three coins from her wallet and dropped them into a donation box. Which one of the following could not be the amount she donated?",
"answer0": "$0.35",
"answer1": "$0.75",
"answer2": "$1.15",
"answer3": "$1.65",
"correct_answer": 1,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2022 P6 Prelim Q22",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The table shows the charges for bicycle rental: For the first 1 hour \\$6.00; for every additional 30 minutes or part thereof \\$2.50. Jane rented a bicycle from 5.30 p.m. to 7.45 p.m. How much did she pay? Ans: \\$ [?]",
"answer0": "13.50",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2022 P6 Prelim Q31",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Prawns are sold at the supermarket at \\$1.35 per 100 g. Kelly bought 3.5 kg of prawns. How much did she pay? Ans: \\$ [?]",
"answer0": "47.25",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2022 P6 Prelim Q33",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "John saw two different advertisements for two identical rackets sold at \\$180 before discount. Shop W: \\$50 discount. Shop Y: 25% discount. How much money did John save by buying from the cheaper shop? Ans: \\$ [?]",
"answer0": "5",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2022 P6 Prelim Q36",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "A pen costs \\$\\(p\\). A notebook costs \\$2 more than the pen. What is the cost of 3 pens and 2 notebooks? Express your answer in terms of \\(p\\) in its simplest form.",
"answer0": "$\\((5p+4)\\)",
"answer1": "$\\((5p+2)\\)",
"answer2": "$\\((3p+4)\\)",
"answer3": "$\\((5p+6)\\)",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2022 P6 Prelim Q37",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A pen costs \\$\\(p\\). A notebook costs \\$2 more than the pen. Lee Lian paid \\$22.50 for 3 pens and 2 notebooks. Find the cost of one notebook. Ans: \\$ [?]",
"answer0": "5.70",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2022 P6 Prelim Q39",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Su Ling wanted to buy a laptop with her savings. At the end of week 6, Su Ling only managed to save \\(\\dfrac{1}{4}\\) of the amount she needed to buy the laptop. From the line graph, her savings at the end of week 6 were \\$520. How much more does she need to save? Ans: \\$ [?]",
"answer0": "1560",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2022 P6 Prelim Q46",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "An entrance fee was charged to those who took part in swimming. From the graphs, swimming was 25 in March and 200 in April. A total of \\$528.75 was collected in March and April. How much was the entrance fee? Ans: \\$ [?]",
"answer0": "2.35",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2023 P6 Prelim P1 Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Sandy is given a total of \\$30 to spend from Monday to Friday. Every day, she spends \\$4 on food, \\$q on transport and saves the rest. How much does she save each week?",
"answer0": "$ (130 − 5q)",
"answer1": "$ (30 − 4q)",
"answer2": "$ (26 − q)",
"answer3": "$ (10 − 5q)",
"correct_answer": 3,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2023 P6 Prelim P1 Q12",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Lisa paid \\$18.90 for 3 identical files and 3 identical pencils. Howard paid \\$10.50 for 2 such files and 1 such pencil. How much did each file cost?",
"answer0": "$3.15",
"answer1": "$3.50",
"answer2": "$4.20",
"answer3": "$7.00",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2023 P6 Prelim P1 Q22",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mrs Pandi wants to send letters overseas by airmail. The airmail rates to two countries are shown in the table. Mrs Pandi wants to send a letter weighing 33 g to Thailand and a letter weighing 42 g to Australia. How much will she need to pay in total? \\$[?]",
"answer0": "3.20",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2023 P6 Prelim P2 Q6",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mr Raja paid a total of \\$1406.40 for a laptop and a camera at a sale. The price of the camera before discount was \\$864. Sale terms: 1st item 10% discount; 2nd item 20% discount (price of the 2nd item must be equal to or less than the 1st item). What was the price of the laptop before discount? \\$[?]",
"answer0": "786",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2023 P6 Prelim P2 Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Tom wanted to buy a new television and started a 4-month savings plan. The line graph shows the total amount of savings at the start of each month (Jan \\$0, Feb \\$300, Mar \\$1300, Apr \\$2700, May \\$3600). What was the percentage increase in the amount of savings from the end of January to the end of February? [?] %",
"answer0": "333.33",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2023 P6 Prelim P2 Q16",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "At a concert, \\$9180 was collected from the sale of adult and child tickets. The ratio of the money collected from adult to child tickets is 14 : 3. \\(\\dfrac{1}{5}\\) of the tickets sold were child tickets. Each adult ticket is \\$9 more than each child ticket. How many child tickets were sold? [?]",
"answer0": "30",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2023 P6 Prelim P2 Q17",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "At a bakery, cupcakes are sold in boxes of 4 at \\$2.10 and tarts are sold in boxes of 3 at \\$1.60. Mrs Lee spent a total of \\$203.60 on some cupcakes and tarts at the bakery. She repacks them onto trays such that there are 3 cupcakes and 5 tarts on each tray for a party. How many tarts did she buy from the bakery? [?]",
"answer0": "240",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2024 P6 Prelim Q8",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Rahul bought an apple and a dozen of oranges for \\$20\\(y\\). Each orange cost \\$3. Find the cost of an apple.",
"answer0": "$20\\(y\\)",
"answer1": "$(20\\(y\\) − 3)",
"answer2": "$60\\(y\\)",
"answer3": "$(20\\(y\\) − 36)",
"correct_answer": 3,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2024 P6 Prelim Q22",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "At a bookshop, correction tapes are sold in packs of 2 or 5.
2 for \\$1.80, 5 for \\$4.20.
Jane needs to buy 9 correction tapes. What is the least amount of money she needs to pay?
\\$[?]",
"answer0": "7.80",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2024 P6 Prelim Q23",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Raj had enough money to buy exactly 20 pens. During a sale, the price of each pen was reduced by \\$0.15. With the money he saved from the discount, he was able to buy 4 more pens and had \\$0.20 left. What was the price of each pen during the sale?
\\$[?]",
"answer0": "0.70",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2024 P6 Prelim Q25",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "John bought some plants at an average price of \\$7. After buying another plant at \\$21, the average price became \\$9. Find the total number of plants John bought.
[?]",
"answer0": "7",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2024 P6 Prelim P2 Q7",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The line graph shows the amount of electricity used by the Wong family from January to June.
(a) Find the percentage decrease in the amount of electricity used from February to March.
[?] %
(b) In which month was the amount of electricity used \\(\\dfrac{3}{4}\\) that of the amount of electricity used in April?
____________
(c) The Wong family had to pay 9% GST on top of charges for electricity used. Electricity is charged at \\$0.15 per unit. How much did they pay for the electricity used in May?
\\$[?]",
"answer0": "11.11",
"answer1": null,
"answer2": "52.32",
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2024 P6 Prelim P2 Q12",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Xinli and Mark want to save \\$164 to buy a gift. Xinli started saving earlier and she saves \\$3 each day. When Xinli has saved for 20 days, Mark would have saved \\$20. When Xinli has saved for 26 days, Mark would have saved \\$44. Mark saves a same amount each day.
(a) How much does Mark save each day?
\\$[?]
(b) How many days would Xinli need to save so that they have exactly \\$164 to buy the gift?
[?]",
"answer0": "4",
"answer1": "32",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2024 P6 Prelim P2 Q13",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Shop X sells a dress at \\$450. Shop Y sells the same dress at 80% of the price at Shop X.
(a) What is the price of the dress in Shop Y?
\\$[?]
(b) During the Great Singapore Sale, Shops X and Y offered the same percentage discount on the dress. Shumei bought the dress in Shop Y and paid \\$82.80 less than the discounted price in Shop X. What was the percentage discount offered?
[?] %",
"answer0": "360",
"answer1": "8",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2024 P6 Weighted Assessment 2 Q5",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Siti bought a pair of rollerblades at a 25% discount and saved \\$28. What was the price of the rollerblades before the discount? [?]",
"answer0": "112",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2024 P6 Weighted Assessment 2 Q6",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Randy spent 30% of his money on a badminton racket. He spent another \\$84 on books. In the end, he had 55% of his money left. How much money did Randy have left? [?]",
"answer0": "308",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2024 P6 Weighted Assessment 2 Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The same brand of laundry detergent is sold in 2 shops in 2 sizes; prices before discount are the same at both shops. Shop A: for every 1 big bottle purchased, get 45% discount on 1 small bottle. Shop B: bundle set @ \\$35 = 2 small bottles + 2 big bottles.
(a) The price of a big bottle before discount is \\$14.40. Susan bought 1 small bottle and 1 big bottle from Shop A and paid \\$18.25 altogether. What was the price of the small bottle before discount? [?]
(b) Michelle bought a bundle set from Shop B. What percentage of the amount of money spent in Shop B did she save by buying from Shop B instead of Shop A? Round your answer to 1 decimal place. [?]",
"answer0": "7",
"answer1": "4.3",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2025 P6 Prelim Q7",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Express 20¢ as a percentage of \\$5.",
"answer0": "4%",
"answer1": "25%",
"answer2": "400%",
"answer3": "2500%",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2025 P6 Prelim Q13",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "A toy car cost \\$8 after a discount of 20%. Kenny was given a further discount of \\$2 because of the SG60 promotion at the toy store. What is the total percentage discount for the toy car?",
"answer0": "20 %",
"answer1": "25 %",
"answer2": "40 %",
"answer3": "60 %",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2025 P6 Prelim P2 Q21",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The table shows the hourly rate of work done at a call center. Weekdays (Monday to Friday): \\$8. Weekend (Saturday and Sunday): \\$10.
Leonard works at the call center for 10 hours daily on weekdays and 5 hours on Saturdays. How much does he earn in a week? \\$[?]",
"answer0": "450",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2025 P6 Prelim P2 Q27",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "June had \\$5a. After buying some cakes at \\$5 each, she had \\$2a left. How many cakes did she buy? Give your answer in terms of a.",
"answer0": "\\(\\dfrac{3a}{5}\\)",
"answer1": "3a",
"answer2": "\\(\\dfrac{5a}{3}\\)",
"answer3": "\\(\\dfrac{2a}{5}\\)",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2025 P6 Prelim P2 Q1",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The usual price of a tennis racket is \\$120. During a sale, Joe bought the racket at a discount of 20%. How much did Joe pay for the racket? \\$[?]",
"answer0": "96",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2025 P6 Prelim P2 Q10",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The bar graph shows the number of four different brands of pens sold at a shop. 560 pens were sold altogether. Part of the graph was torn off. The prices per pen are: A \\$2.80, B \\$2.20, C \\$2.50, D \\$1.60. The number of pens sold from Brand C was \\(\\dfrac{3}{5}\\) the number of pens sold from Brand D. The total amount collected from the sales of pens from Brand C and Brand D was \\$620.
(a) How many Brand C pens were sold? [?]
(b) How many Brand B pens were sold? [?]",
"answer0": "120",
"answer1": "140",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "MGS 2025 P6 Prelim P2 Q13",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The graphs show the cost of sending packages to Indonesia for the first 10 kg by 2 courier companies (Company A and Company B).
(a) How much does it cost to courier a package for the first 2 kg when using Company A's service? \\$[?]
(b) Adele used Company B's service and paid \\$9 for her package. What was the mass of her package? [?] kg
(c) Yanti and Dewi each sent a 8.7-kg package to Indonesia. Yanti used Company A's service while Dewi used Company B's service. What is the difference in the amounts they paid? \\$[?]",
"answer0": "5",
"answer1": "3",
"answer2": "1.70",
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Methodist Girls 2025 P6 Weighted Assessment 1 Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Norman has 14 kg of cashew nuts. He packs them into bags of \\(\\dfrac{3}{4}\\) kg and has some left. He sells each bag for \\$4.95.
(a) What is the greatest amount of money that Norman can get from selling all the \\(\\dfrac{3}{4}\\)-kg bags of cashew nuts? \\$[?]
(b) What is the mass of cashew nuts left? [?] g",
"answer0": "89.10",
"answer1": "500",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Methodist Girls 2025 P6 Weighted Assessment 1 Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Xinyu and Caitlyn had \\$708 altogether. Xinyu spent \\(\\dfrac{4}{7}\\) of her money and Caitlyn spent \\(\\dfrac{3}{8}\\) of her money. In the end, both girls had an equal amount of money left. How much money did Xinyu have at first?
\\$[?]",
"answer0": "420",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Methodist Girls 2025 P6 Weighted Assessment 1 Q13",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Kirsten bought 3 pens and 4 erasers with \\(\\dfrac{2}{5}\\) of her money. Each pen cost 4 times as much as an eraser. She spent \\(\\dfrac{1}{4}\\) of her remaining money on a notebook. The notebook cost \\$2.20 more than a pen. How much did the notebook cost?
\\$[?]",
"answer0": "6.60",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Maris Stella 2023 P6 Prelim Q28",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Andy had \\$5x. After buying apples at 60¢ each, he had \\$2x left. How many apples did Andy buy?",
"answer0": "\\(\\dfrac{3x}{0.6}\\)",
"answer1": "\\(\\dfrac{2x}{0.6}\\)",
"answer2": "\\(\\dfrac{5x}{0.6}\\)",
"answer3": "\\(5x\\)",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Maris Stella 2023 P6 Prelim P2 Q1",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The pie chart shows how Michael spent his money. Toy = \\$38, Lunch = \\$10, Movie = \\$12, and the Book segment is a right angle. (a) How much money did Michael spend on the book? \\$[?] (b) What percentage of Michael's money was spent on lunch? [?]%",
"answer0": "20",
"answer1": "12.5",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Maris Stella 2023 P6 Prelim P2 Q3",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Jimmy gave his mother \\$1200 of his salary. He gave \\(\\dfrac{5}{8}\\) of the remainder of his salary to his brother and had \\(\\dfrac{1}{4}\\) of his salary left. What was Jimmy's salary? \\$[?]",
"answer0": "3600",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Maris Stella 2023 P6 Prelim P2 Q17",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "In June, Mr Tan saved 20% of his salary. In July, his monthly salary increased by \\$600 and he saved 15% of his new monthly salary. Given that Mr Tan saved the same amount of money in both months, find the percentage increase in Mr Tan's salary.",
"answer0": "\\(33\\dfrac{1}{3}\\)%",
"answer1": "30%",
"answer2": "25%",
"answer3": "20%",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Maris Stella 2024 P6 Prelim Q25",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "After Ali spent \\(\\dfrac{3}{5}\\) of his money and Bala spent \\(\\dfrac{4}{7}\\) of his money, each of them had \\$72 left. How much more money did Ali have than Bala at first?
\\$[?]",
"answer0": "12",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Maris Stella 2024 P6 Prelim P2 Q6",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "The price of 3 items sold at a bookshop are: Pencil \\((x + 60)\\)¢, Pen \\$2, Ruler \\(3x\\)¢. Chester bought 1 pencil and 2 pens. Express the cost of the 3 items in terms of x.",
"answer0": "\\((x + 460)\\)¢",
"answer1": "\\((x + 260)\\)¢",
"answer2": "\\((x + 64)\\)¢",
"answer3": "\\((3x + 460)\\)¢",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Maris Stella 2024 P6 Prelim P2 Q6",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The price of 3 items sold at a bookshop are: Pencil \\((x + 60)\\)¢, Pen \\$2, Ruler \\(3x\\)¢. Joseph bought a pencil and a ruler. If \\(x = 60\\), how much did he spend? Give your answer in cents.
[?]",
"answer0": "300",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Maris Stella 2024 P6 Prelim P2 Q15",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The ratio of the number of boys to the number of girls who visited a funfair was 10 : 7. The entrance fee for each person was \\$12 and a total of \\$4692 was collected from the children.
(a) How many boys were there? [?]
On that same day, the ratio of the number of males (boys and men) to the number of females (girls and women) who visited the funfair was 8 : 5. There were 54 more men than women.
(b) How many women were there? [?]",
"answer0": "230",
"answer1": "90",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Maris Stella 2024 P6 Prelim P2 Q17",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "There were some 10¢, 20¢ and 50¢ coins in a box. There were 34 more 10¢ coins than 20¢ coins. The total value of all the 10¢ coins and 20¢ coins was \\$13.30.
(a) How many 10¢ coins were there in the box? [?]
\\(\\dfrac{2}{3}\\) of the 50¢ coins were exchanged for \\$1 coins which were then placed in the box. The total value of all the coins in the box did not change but the mass of all the coins in the box decreased by 172.8 g. The mass of each 50¢ coin is 6.5 g and the mass of each \\$1 coin is 7.6 g.
(b) What was the total number of 50¢ and \\$1 coins in the box after the exchange? [?]",
"answer0": "67",
"answer1": "64",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Chiau 2022 P6 Prelim Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Mary had \\$350. She spent the same amount of money each day. After 5 days, she was left with \\(\\dfrac{4}{5}\\) of her money. How much did she spend each day?",
"answer0": "$14",
"answer1": "$15",
"answer2": "$56",
"answer3": "$70",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Chiau 2022 P6 Prelim Q14",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "The price of an e-dictionary was \\$45 after a discount of 10%. Rina was then given an additional discount of \\$9. What was the total percentage discount given to Rina for the e-dictionary?",
"answer0": "18%",
"answer1": "20%",
"answer2": "28%",
"answer3": "30%",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Chiau 2022 P6 Prelim Q23",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Shop A and shop B sold an identical television each at the same price, after the discounts shown. Shop A: 40% Discount, Usual Price: ? Shop B: 20% Discount, Usual Price: \\$1500. What was the usual price of the television sold by shop A? (Give your answer in \\$.)
[?]",
"answer0": "2000",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Chiau 2022 P6 Prelim Q24",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Matthew spent a total of \\$15 on some rulers and pens. He bought 27 pens at 9 pens for \\$y. He bought the rulers at \\$2 each. How many rulers did he buy?
[?]",
"answer0": "0",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Chiau 2022 P6 Prelim Q35",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The graph shows the fare a taxi company charges for the first 10 kilometres. John took a taxi and travelled for 9 km. How much did he pay? (Give your answer in \\$.)
[?]",
"answer0": "28.50",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Chiau 2022 P6 Prelim Q36",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Simon could buy 9 notebooks and 54 pencils with \\$64.80. With that same amount of money, he could buy 24 notebooks. He then decided to buy only pencils. What was the most number of pencils Simon could buy with \\$64.80?
[?]",
"answer0": "86",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Chiau 2022 P6 Prelim Q41",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Anne, Beth and Crystal bought a present. The ratio of the amount Anne paid to the total amount Beth and Crystal paid was 3 : 5. The ratio of the amount Crystal paid to the total amount Anne and Beth paid was 2 : 3. Crystal paid \\$21 more than Beth. How much did the person who paid the least pay for the present?
[?]",
"answer0": "27",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Chiau 2022 P6 Prelim Q43",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "In a shop, erasers and pencils are sold only in boxes. A box of 3 erasers costs \\$5.20; a box of 5 pencils costs \\$6.65. (a) Mrs Lim wants to get 40 erasers and 78 pencils for her students. What is the least amount of money she will need to spend on the erasers and pencils? (Give your answer in \\$.) (b) Mr Wong spent \\$328.30 to buy a total of 57 boxes of erasers and pencils. How many boxes of pencils did he buy?
(a) [?] (b) [?]",
"answer0": "179.20",
"answer1": "22",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2022 P6 Prelim Q6",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "John is thinking of a number. 40% of the number is 36. What is the number? [?]",
"answer0": "90",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Nan Hua 2022 P6 Prelim Q7",
"fix_types": [
"missing_blank",
"dollar_escape"
],
"type_id": 2,
"question": "Aini spent \\$40 in school in January. In February, she spent \\$32 in school. Find the percentage decrease in her spending. [?]",
"answer0": "20",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent). Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2022 P6 Prelim Q16",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "Measure and write down the size of \\(\\angle ABC\\). [?]",
"answer0": "127",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Nan Hua 2022 P6 Prelim Q17",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "The volume of the cuboid is 96 cm³. The area of the shaded face is 8 cm². Find the height of the cuboid. [?]",
"answer0": "12",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Nan Hua 2022 P6 Prelim Q20",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "ABCD is a trapezium with AB parallel to DC. Find \\(\\angle y\\). [?]",
"answer0": "33",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Nan Hua 2022 P6 Prelim Q21b",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "Find the value of $2\\div 9$. Give your answer correct to 1 decimal place. [?]",
"answer0": "0.2",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Nan Hua 2022 P6 Prelim Q25",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "John is $t$ years old. His mother is 25 years older than him.
(a) How old is John's mother? Express your answer in terms of $t$.
(b) What is their total age when $t=10$? [?] [?]",
"answer0": "$t+25$",
"answer1": "45",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 2 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Nan Hua 2022 P6 Prelim Q27",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "The figure shows a rectangular glass box filled with unit cubes. How many more unit cubes are needed to fill the box completely? [?]",
"answer0": "49",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Nan Hua 2022 P6 Prelim Q28",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "In the figure, ABCD is a square. BCE is an equilateral triangle. Find \\(\\angle AEB\\). [?]",
"answer0": "75",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Nan Hua 2022 P6 Prelim Q30",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "The figure is made up of 3 identical squares, ABCD, BEFG and BHJK. \\(\\angle ABG=40°\\) and \\(\\angle HBE=30°\\). Find \\(\\angle KBC\\). [?]",
"answer0": "20",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Nan Hua 2023 P6 Prelim Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "James paid \\$20 for 40 rulers. How much did each ruler cost?",
"answer0": "5 cents",
"answer1": "2 cents",
"answer2": "50 cents",
"answer3": "20 cents",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2023 P6 Prelim P2 Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 0,
"question": "Every week, Ailing saves \\$2m, Bala saves \\$(m + 5) and Carrie saves \\$(3m − 2). (a) Find the average weekly savings of the three children in terms of m. (b) Find the average savings of the 3 children when m = 4. (c) Each statement is either true, false or impossible to tell: 'Ailing's savings is less than the average savings.' and 'Carrie saves the most money.'",
"answer0": null,
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2023 P6 Prelim P2 Q13",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Tim had \\(\\dfrac{2}{3}\\) as much money as Peter. After Tim received \\$120 from his mother and Peter used \\$120, Tim had twice as much money as Peter. How much money did Tim have at first?
Answer: \\$[?]",
"answer0": "180",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2023 P6 Weighted Assessment 1 Q4",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "A bag cost \\$200. Kate bought it at a 25% discount. How much did she pay for the bag after adding 8% GST?",
"answer0": "$162",
"answer1": "$150",
"answer2": "$138",
"answer3": "$134",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2023 P6 Weighted Assessment 1 Q10",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Sam has some 1-dollar and 20-cent coins in the ratio 2 : 5. The total value of the coins is \\$21. How many 20-cent coins does he have? [?]",
"answer0": "35",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2023 P6 Weighted Assessment 1 Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The table shows Macy's savings from January to March. Her average savings for the 3 months was \\$52. How much did she save in March?
January: \\$28
February: \\$70
March: ? [?]",
"answer0": "58",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2023 P6 Weighted Assessment 1 P2 Q5",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Macy had \\$270 less than Lindy. After Macy gave Lindy some money, Lindy had 4 times as much money as Macy. If Macy had \\$520 left, how much money did she have at first? [?]",
"answer0": "1165",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2023 P6 Weighted Assessment 2 Q5",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Meili had only the coins 5 cents, 10 cents, 20 cents, 50 cents and \\$1 in her wallet. She took three coins from her wallet and dropped them into a donation box. Which one of the following could be the amount she donated?",
"answer0": "$0.35",
"answer1": "$0.85",
"answer2": "$1.20",
"answer3": "$1.80",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2023 P6 Weighted Assessment 2 Q25",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A tennis racket has a sale price of \\$135 and a usual price of \\$180. What is the percentage discount for the tennis racket? [?]",
"answer0": "25",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2023 P6 Weighted Assessment 2 P2 Q3",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The parking charges at ABC car park are: First hour \\$1.80; every additional half an hour \\$0.60. Mr Tan parked his car for 9 hours at ABC car park. How much did he pay, in \\$? [?]",
"answer0": "11.40",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2023 P6 Weighted Assessment 2 P2 Q4",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Miss Tan started a fixed deposit account with \\$30 000 in a bank. The interest rate is 4% per year. How much would she have in her account at the end of one year? Give your answer in \\$. [?]",
"answer0": "31200",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2023 P6 Weighted Assessment 2 P2 Q12",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "In Country X, the height of six 10-cent coins is the same as that of five 20-cent coins (Diagram 1). Diagram 2 shows an unknown number of 10-cent coins stacked to the same height as another stack of 20-cent coins. The total value of the 2 stacks of coins in Diagram 2 is \\$8. (a) Find the number of 10-cent coins used in Diagram 2. (b) Find the value of all the 20-cent coins used in Diagram 2, in \\$. (a) [?] (b) [?]",
"answer0": "30",
"answer1": "5",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2023 P6 Weighted Assessment 2 P2 Q14",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mrs Goh had some money. She used \\$53 to pay for 4 identical large potted plants and 7 identical small potted plants. If she bought another large potted plant, she would be short of \\$3.50. If she bought another small potted plant, she would have \\$1.50 left. (a) What is the difference in price between the large and the small potted plant, in \\$? (b) Find the price of one large potted plant, in \\$. (a) [?] (b) [?]",
"answer0": "5",
"answer1": "8",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2023 P6 Weighted Assessment 2 P2 Q16",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "40 workers donated money to charity. 60% of them were male workers. Each male worker donated \\$20 and each female worker donated \\$4 more than each male worker. (a) How much money, in \\$, did the female workers donate altogether? (b) On the average, how much, in \\$, did each worker donate? (a) [?] (b) [?]",
"answer0": "384",
"answer1": "21.60",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2024 P6 Non-Weighted Assessment 1 Q5",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "A handbag cost \\$250. Kelly bought the bag and was given a 20% discount. She had to pay 8% GST on the discounted price. How much did she pay for the handbag inclusive of the GST?",
"answer0": "$180",
"answer1": "$184",
"answer2": "$216",
"answer3": "$220",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2024 P6 Non-Weighted Assessment 1 Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "After an increase of \\$80, Daniel's monthly allowance became \\$400. What is the percentage increase in his allowance? [?]",
"answer0": "25",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2024 P6 Non-Weighted Assessment 1 Paper 2 Q3",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mr Chan bought a laptop and a printer from a shop. He paid a total of \\$1824 for these two items after discount. The total discount given for the laptop and printer was \\$246. The laptop's usual price is \\$1290 with a discount of 10% given. Find the percentage discount given for the printer. [?]",
"answer0": "15",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2024 P6 Non-Weighted Assessment 2 Paper 2 Q1",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The rate for parcel postage at a post office is: not over 100 g = \\$2.50; not over 250 g = \\$3.90; not over 500 g = \\$5.20; every additional 100 g = \\$1. Alice posted a parcel that weighed 660 g. How much did she pay for the postage? [?]",
"answer0": "7.20",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2024 P6 Non-Weighted Assessment 2 Paper 2 Q7",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Ivan and Helen shared a sum of money in the ratio of 3 : 2. When Ivan gave \\$21 to Helen, the ratio of Ivan's amount of money to Helen's amount of money became 2 : 13. How much money did Ivan have at first? [?]",
"answer0": "27",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2024 P6 Non-Weighted Assessment 2 Paper 2 Q8",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Karen paid \\$54 for 15 cupcakes after a 25% discount. How many cupcakes could she have bought with the same amount of money without the discount? [?]",
"answer0": "11",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2024 P6 Non-Weighted Assessment 2 Paper 2 Q10",
"fix_types": [
"dollar_escape"
],
"type_id": 0,
"question": "The bar graph shows the sales of four food items at a fun fair (Burgers \\$240, Hot dogs \\$225, Chicken pies \\$300, Waffles \\$300). Prices: Burger \\$5, Hot dog \\$3, Chicken pie \\$4, Waffles \\$3.
(a) Find the number of hot dogs sold.
(b) The total number sold for two of the food items was the same. Which were the two food items?",
"answer0": null,
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2024 P6 Non-Weighted Assessment 2 Paper 2 Q12",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Pop-its cost \\$4.50 for one set of 4 pop-its. Unicorn soft toys cost \\$18 for a set of 5 soft toys. The items are sold only in sets.
(a) If Ms Chou wants to buy 18 pop-its and 22 unicorn soft toys, what is the least amount of money that she needs to spend on both items? \\$[?]
(b) She is given a 10% discount for all the items bought. How much will she pay? \\$[?]",
"answer0": "112.50",
"answer1": "101.25",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2024 P6 Non-Weighted Assessment 2 Paper 2 Q15",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Peter and John were paid a total of \\$3390 for the work they did. Peter was paid \\$1830 more than John.
(a) How much was Peter paid? \\$[?]
(b) Peter and John were paid based on the number of days they worked. Peter worked 3 times as many days as John. Peter was paid \\$5 more than John per day. How many days did Peter work? [?]",
"answer0": "2610",
"answer1": "54",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2024 P6 Non-Weighted Assessment 2 Paper 2 Q17",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The charges for water consumption are: Up to 40 m³ = 117 cents per m³; Above 40 m³ = 140 cents per m³.
(a) John's family used 32 m³ of water in March. How much did his family pay? \\$[?]
(b) Simon's family spent \\$66.40 on water consumption in April. How much water did his family use? Give your answer in m³. [?] m³",
"answer0": "37.44",
"answer1": "54",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2024 P6 Prelim Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "William had \\$100. After buying 5 identical bags, he had \\$p left. Find the cost of each bag.",
"answer0": "$\\(\\dfrac{100-p}{5}\\)",
"answer1": "$\\(\\dfrac{100p}{5}\\)",
"answer2": "$(100 − 5p)",
"answer3": "$\\(100-\\dfrac{p}{5}\\)",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2024 P6 Prelim Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Nathanael spent 20% of his money on a cap. He used the rest of the money to buy a bag and a shirt. The bag cost \\$15 more than the cap. The shirt cost \\$165. Find the cost of the bag.",
"answer0": "$35",
"answer1": "$48",
"answer2": "$60",
"answer3": "$75",
"correct_answer": 3,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2024 P6 Prelim Q24",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "8 people shared the cost of a meal equally. The cost of the meal was divided by 6 instead of 8 by mistake. As a result, each of the eight people paid \\$4 more than what they should have paid. What is the correct amount that each person should pay?
Ans: \\$[?]",
"answer0": "12",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2024 P6 Prelim P2 Q4",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "P2 Q4. Elaine took a taxi from home to the shopping mall. Charges: First 1 km \\$4.60; every additional 400 m or less \\$0.26; every 45 seconds of waiting or less \\$0.26. The taxi travelled a total distance of 4.7 km and stopped once at a traffic light for 1 minute. How much did Elaine pay for her taxi fare?
Ans: \\$[?]",
"answer0": "7.72",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2024 P6 Prelim P2 Q5",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "P2 Q5. George bought buns of 3 different flavours. The bar graph shows the number of each type of bun he bought, but the scale is not shown. The price of each coconut bun is \\$1.80. George paid \\$50.40 for the coconut buns. How many kaya buns did he buy?
Ans: [?]",
"answer0": "36",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2024 P6 Prelim P2 Q6",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "P2 Q6. Alice and Diana had some money each. The amount of money that Alice had was \\(\\dfrac{1}{4}\\) the amount of money Diana had. They wanted to buy the same dress each but Alice was short of \\$28.40 and Diana was short of \\$15.50. How much was the dress?
Ans: \\$[?]",
"answer0": "32.70",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2024 P6 Prelim P2 Q7",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "P2 Q7. Mr Lim bought 24 tubs of identical ice cream for \\$360. After a price increase in each tub of ice cream, he could only buy 20 tubs with the same amount of money. What was the percentage increase in the price of each tub of ice cream?
Ans: [?]%",
"answer0": "20",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2024 P6 Prelim P2 Q8",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "P2 Q8. A carton of packet drinks costs \\$12. For every 15 cartons of packet drinks bought, a discount of 10% was given. Elisa bought a number of cartons of packet drinks for a charity event and she paid \\$1296. What was the most number of cartons Elisa bought?
Ans: [?]",
"answer0": "120",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2024 P6 Prelim P2 Q15",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "P2 Q15. A group of tourists paid a total amount of \\$2220 for the admission tickets to the Singapore Zoo. The ratio of the number of adults to children to senior citizens was 5 : 2 : 3. The ratio of the amount paid for all children to the amount paid for all senior citizens was 7 : 6. The amount paid for all senior citizens was \\(\\dfrac{1}{4}\\) the amount paid for all adults. Given that the price of an adult ticket was \\$48, find the total number of people in the group.
Ans: [?]",
"answer0": "60",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2025 P6 Prelim Q10",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "A book costs \\$b more than a pen. The total cost of a book and 3 pens is \\$20. Find the cost of a pen.",
"answer0": "\\(\\$\\dfrac{20-b}{3}\\)",
"answer1": "\\(\\$(\\dfrac{20}{4}-b)\\)",
"answer2": "$(20 - 3b)",
"answer3": "\\(\\$\\dfrac{20-b}{4}\\)",
"correct_answer": 3,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2025 P6 Prelim Q23",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Siti received a monthly allowance of \\$120 at the beginning of July. The line graph shows the amount of pocket money she had left at the end of each week of July.
How much did Siti spend in July in total?
Ans: \\$[?]",
"answer0": "104",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2025 P6 Prelim Q24",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Siti received a monthly allowance of \\$120 at the beginning of July. The line graph shows the amount of pocket money she had left at the end of each week of July.
(a) In which week did Siti spend the most? Week [?]
(b) How much did she spend in that week? Ans: \\$[?]",
"answer0": "1",
"answer1": "40",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2025 P6 Prelim P2 Q2",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Jane spent \\(\\dfrac{3}{5}\\) of her money on a pair of shoes. She then spent \\$5 more than \\(\\dfrac{1}{4}\\) of the remainder on a dress. The dress cost \\$35. How much money did she have at first?
Ans: \\$[?]",
"answer0": "300",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2025 P6 Prelim P2 Q8",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The amount of money Bala had was 60% that of Alan's.
(a) Alan had \\$52. How much did Bala have? Ans: \\$[?]
(b) After receiving some money from his mother, Bala's amount of money increased by 20%. By what percentage must Alan's money decrease so that they have the same amount of money? Ans: [?]%",
"answer0": "31.20",
"answer1": "28",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2025 P6 Prelim P2 Q10",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Tracy had five more 50-cent coins than 20-cent coins. After she used eight 50-cent coins, the value of the 50-cent coins is \\$6.30 more than the value of 20-cent coins. How many coins did she have at first?
Ans: [?]",
"answer0": "57",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2025 P6 Timed Practice 2 Q15",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A toaster has a sale price of \\$56 and a usual price of \\$80. What is the percentage discount for the toaster? [?]%",
"answer0": "30",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2025 P6 Weighted Assessment 1 Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "William had \\$100. After buying 5 identical bags, he had \\$p left. Find the cost of each bag.",
"answer0": "\\($\\left(\\dfrac{100-p}{5}\\right)\\)",
"answer1": "\\($\\left(\\dfrac{100p}{5}\\right)\\)",
"answer2": "$(100 − 5p)",
"answer3": "\\($\\left(100-\\dfrac{p}{5}\\right)\\)",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2025 P6 Weighted Assessment 1 Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Nathanael spent 20% of his money on a cap. He used the rest of the money to buy a bag and a shirt. The bag cost \\$15 more than the cap. The shirt cost \\$165. Find the cost of the bag.",
"answer0": "$35",
"answer1": "$48",
"answer2": "$60",
"answer3": "$75",
"correct_answer": 3,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua 2025 P6 Weighted Assessment 1 Q24",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "8 people shared the cost of a meal equally. The cost of the meal was divided by 6 instead of 8 by mistake. As a result, each of the eight people paid \\$4 more than what they should have paid. What is the correct amount that each person should pay?
\\$[?]",
"answer0": "12",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua Primary School 2025 P6 WA2 Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "James paid \\$20 for 40 rulers. How much did each ruler cost?",
"answer0": "5 cents",
"answer1": "2 cents",
"answer2": "50 cents",
"answer3": "20 cents",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua Primary School 2025 P6 Weighted Assessment 3 Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Miss Lim travelled 3.2 km in a taxi from home to the mall. Her taxi fare was based on the charges: First km \\$4.80; every additional 400 m or less \\$0.20. How much was her taxi fare?",
"answer0": "$5.40",
"answer1": "$5.80",
"answer2": "$6.00",
"answer3": "$6.40",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua Primary School 2025 P6 Weighted Assessment 3 Q10",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Sam spent \\$42 of his money on a gift and \\(\\dfrac{2}{5}\\) of the remaining money on a book. In the end, he had \\(\\dfrac{1}{4}\\) of his money left. How much money did Sam have at first?",
"answer0": "$42",
"answer1": "$70",
"answer2": "$72",
"answer3": "$180",
"correct_answer": 3,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua Primary School 2025 P6 Weighted Assessment 3 Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Limin, Ming and Raju each had some money at first. Limin gave Ming \\$2.50. Ming then gave Raju \\$1.80. Raju then spent \\$3 on a pen. In the end, they each had \\$5. What was the difference between the amount Limin and Raju had at first?",
"answer0": "$0.50",
"answer1": "$1.20",
"answer2": "$1.30",
"answer3": "$3.00",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nan Hua Primary School 2025 P6 Weighted Assessment 3 Q18",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Alice saves \\$2 every day. Her mother gives her \\$1 for every 10 days that she saves. What is the total amount of money she will have after 43 days?
[?]",
"answer0": "90",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2022 P6 Prelim Q8",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Huiling had \\$z. Ravi had twice as much money as Huiling. Jas had \\$5 more than Ravi. If Jas had \\$10, how much money did Huiling have?",
"answer0": "$30",
"answer1": "$7.50",
"answer2": "$3",
"answer3": "$2.50",
"correct_answer": 3,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2022 P6 Prelim Q22",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mr Liew paid \\$78.59 for a pair of shoes and \\$19.90 for a towel.
(a) How much did he spend altogether? Round the answer to the nearest dollar.
(b) Find the cost of 30 such towels.
(a) \\$[?]
(b) \\$[?]",
"answer0": "98",
"answer1": "597",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2022 P6 Prelim Q24",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "In 2021, Maggie saved 20% of her monthly salary of \\$3000 each month. In 2022, Maggie received an increase in her monthly salary and she saved \\$180 more per month. What was the percentage increase in Maggie's monthly savings?
[?] %",
"answer0": "30",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2022 P6 Prelim Paper 2 Q1",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The original price of a book was $k$. David bought 15 such books. After he was given a discount of \\$10, he paid a total of \\$110. What was the original price of one such book?
\\$[?]",
"answer0": "8",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2022 P6 Prelim Paper 2 Q2",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The table shows the charges for renting a bicycle. On Friday, Mr Wu rented a bicycle and returned it at 6 p.m. He paid a total of \\$24. For how many hours did he rent the bicycle?
[?] h",
"answer0": "5",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2022 P6 Prelim Paper 2 Q3",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Ji Min saved some money in April. She saved \\$2.50 per day for 20 days. She then saved \\$3.10 per day for the rest of the month. What was the average amount of money she saved per day in April? (There are 30 days in April.)
\\$[?]",
"answer0": "2.70",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2022 P6 Prelim Paper 2 Q4",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Dana bought an oven from Shop A at 15% discount during a sale. The price of the oven was \\$800 before discount at Shop A. Hailey bought an identical oven from Shop B at 20% discount and paid the same amount as Dana. What was the price of the oven before discount at Shop B?
\\$[?]",
"answer0": "850",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2022 P6 Prelim Paper 2 Q7",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Peter had \\$18.20 less than Jane at first. After Jane gave some of her money to Peter, he had \\$29.20 more than her. How much money did Jane give to Peter?
\\$[?]",
"answer0": "23.70",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2023 P6 Prelim Q22",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Bala bought 3 pens and 2 files. The total cost of the 3 pens and 2 files was \\$7.65.
(a) Bala gave the cashier \\$50 to buy the 3 pens and 2 files. How much change did he receive? \\$[?]
(b) Chandra bought 9 such pens and 6 such files. How much did he pay? \\$[?]",
"answer0": "42.35",
"answer1": "22.95",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2023 P6 Prelim P2 Q2",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A worker is paid as follows: 1st hour \\$75; every additional hour \\$40; and for every 4 hours of completed work, an additional \\$10 is paid. Mr Morris was paid \\$325 for a day's work. How many hours did he work? [?] h",
"answer0": "7",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2023 P6 Prelim P2 Q4",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A handphone has a price before GST of \\$890. What is the price of the handphone after adding 8% GST? \\$[?]",
"answer0": "961.20",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2023 P6 Prelim P2 Q7",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "At a bakery, Mrs Tan bought 9 chicken puffs and Mrs Lim bought 5 beef puffs. They spent the same amount of money buying these puffs. Each beef puff cost \\$1.20 more than each chicken puff. How much money did Mrs Tan and Mrs Lim spend altogether? \\$[?]",
"answer0": "27",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2023 P6 Prelim P2 Q16",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A company offered 150 laptops at a 20% discount during a 5-day sale. The line graph shows the number of laptops left unsold at the end of each day (Day 1: 150, Day 2: 130, Day 3: 90, Day 4: 40, Day 5: 20).
(a) On which day was the most number of laptops sold? Day [?]
(b) What percentage of the laptops were sold on the first 2 days? [?] %
(c) During the sale, the discounted price of the laptop was \\$1288. After the sale, the remaining laptops were sold at a discount of 50% instead of 20%. What was the total amount of money collected from selling all 150 laptops? \\$[?]",
"answer0": "3",
"answer1": "40",
"answer2": "183540",
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2023 P6 Weighted Assessment 1 Q8",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Ninety identical pencils cost \\$57.60. What is the cost of one such pencil?",
"answer0": "$0.54",
"answer1": "$0.64",
"answer2": "$0.74",
"answer3": "$6.40",
"correct_answer": 1,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2023 P6 Weighted Assessment 1 Q27",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mr Tan had \\$20 more than Mr Lee at first. After Mr Tan spent \\$50 and Mr Lee spent half of his money, both of them had the same amount of money left. How much money did Mr Lee have at first?
\\$[?]",
"answer0": "60",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2023 P6 Weighted Assessment 1 Paper 2 Q3",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Joy had a meal that cost \\$32.50 before GST at a restaurant. What was the cost of her meal after adding 8% GST?
\\$[?]",
"answer0": "35.10",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2023 P6 Weighted Assessment 1 Paper 2 Q6",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Miss Wong bought two identical suitcases at a year-end sale (40% discount for all suitcases). The two suitcases cost \\$174 after discount. Find the price of one such suitcase before discount.
\\$[?]",
"answer0": "145",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2023 P6 Weighted Assessment 1 Paper 2 Q7",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mr Mohammad took a taxi from home to his office. His taxi fare was based on the charges: first 1 kilometre or less \\$4.30; every additional 400 m or less \\$0.24; every 45 seconds of waiting or less \\$0.24. The taxi stopped once at a traffic light and travelled a total distance of 7 km to reach his office. Mr Mohammad paid \\$9.10. What was the longest possible duration the taxi stopped at the traffic light?
[?] s",
"answer0": "225",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2023 P6 Weighted Assessment 1 Paper 2 Q13",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Ashraf had some money at first. He spent 15% of it on food and \\$810 on a new laptop. He then gave 20% of the remainder to his brother. In the end, he had \\$304 left.
(a) How much money did Ashraf give to his brother? \\$[?]
(b) How much money did Ashraf have at first? \\$[?]",
"answer0": "76",
"answer1": "1400",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2023 P6 Weighted Assessment 2 Q13",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "A lollipop cost \\$0.70. There were 80 lollipops in a box. Janie bought 8 such boxes of lollipops for her class party. How much did she spend on the lollipops?",
"answer0": "$408",
"answer1": "$428",
"answer2": "$448",
"answer3": "$560",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2023 P6 Weighted Assessment 2 Q33",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "[Paper 2 Q3] The price of a pair of shoes was \\$80 before discount. Richard bought the pair of shoes at a discount of 15% during a sale. How much did he pay for the pair of shoes?
Ans: \\$[?]",
"answer0": "68",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2023 P6 Weighted Assessment 2 Q44",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "[Paper 2 Q14] A pencil and an eraser cost \\$1.05. A pencil and a ruler cost \\$0.85. Bernice paid \\$6.90 for 8 such pencils and 5 such erasers. Chandra paid \\$3.30 for some rulers.
(a) What was the cost of one such eraser? \\$[?]
(b) How many such rulers did Chandra buy? [?]",
"answer0": "0.30",
"answer1": "11",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2024 P6 Mid-Year Practice Q13",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "A lollipop cost \\$0.70. There were 80 lollipops in a box. Janie bought 8 such boxes of lollipops for her class party. How much did she spend on the lollipops?",
"answer0": "$408",
"answer1": "$428",
"answer2": "$448",
"answer3": "$560",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2024 P6 Mid-Year Practice Paper 2 Q3",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The price of a pair of shoes was \\$80 before discount. Richard bought the pair of shoes at a discount of 15% during a sale. How much did he pay for the pair of shoes? \\$[?]",
"answer0": "68",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2024 P6 Mid-Year Practice Paper 2 Q8",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Nurul and Peili went shopping together with a total sum of \\$60. Nurul spent twice as much as Peili. The amount Peili had left was \\$7 more than what she had spent. She had twice as much money left as Nurul. How much money did Nurul have at first? \\$[?]",
"answer0": "31",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2024 P6 Non-Weighted Assessment 1 Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Ashraf had some money at first. He spent 10% of it on food and \\$140 on a bicycle. He then gave 50% of the remainder to his brother. In the end, he had \\$200 left. How much money did Ashraf spend on food? [?]",
"answer0": "60",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2024 P6 Prelim Q22",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A notebook costs \\$2.65 and a pencil costs \\$0.90.
(a) Find the total cost of one such notebook and one such pencil. \\$[?]
(b) Mrs Chia bought 200 such notebooks and 200 such pencils. How much did she pay altogether? \\$[?]",
"answer0": "3.55",
"answer1": "710",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2024 P6 Prelim Paper 2 Q4",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "What is the price of the car after adding 9% GST? The price before GST is \\$188 000.
\\$[?]",
"answer0": "204920",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2024 P6 Prelim Paper 2 Q7",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A baker had some tarts and cookies. He packed the tarts in boxes of 6 and the cookies in boxes of 10. He sold each box of tarts for \\$28.80 and each box of cookies for \\$22.20. He sold 4 times as many boxes of tarts as boxes of cookies. He earned a total of \\$2198.40 from the sale of all the boxes of tarts and boxes of cookies. How many tarts did he sell? [?]",
"answer0": "384",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2024 P6 Prelim Paper 2 Q13",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The line graph shows the amount of money that Raj saved each month from March to June.
(a) How much more did he save in May than April? \\$[?]
(b) What was the percentage increase in his savings from May to June? [?] %
(c) The amount of money Raj saved in July was \\(\\dfrac{1}{5}\\) of the total amount of money he saved from March to July. How much did he save in July? \\$[?]",
"answer0": "280",
"answer1": "20",
"answer2": "250",
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2025 P6 Prelim Q8",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "A fish burger cost \\$\\(m\\). A beef burger cost \\$(\\(m\\) + 1). The total cost of 4 fish burgers and 1 beef burger is \\$21. Find the cost of 1 beef burger.",
"answer0": "$5",
"answer1": "$4.40",
"answer2": "$4.20",
"answer3": "$4",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2025 P6 Prelim P2 Q2",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The following table shows the parking charges at a carpark.
For the first hour or less: \\$2.70
For every additional \\(\\dfrac{1}{2}\\) hour or less: \\$1.20
Reisha parked her car from 8.15 p.m. to 11.00 p.m. on Tuesday. How much did she have to pay?
\\$[?]",
"answer0": "7.50",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2025 P6 Prelim P2 Q4",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The usual price of a toaster was \\$80. A discount of 20% was given during a sale. When Mdm Singh bought the toaster online, an additional \\$10 discount was given after the discount of 20%. What was the total percentage discount given to Mdm Singh for the toaster?
[?]%",
"answer0": "32.5",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2025 P6 Prelim P2 Q8",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mr Soh spent \\(\\dfrac{1}{5}\\) of his money on a pair of shoes and \\(\\dfrac{3}{4}\\) of his remaining money on a bag, a shirt and a hat. The bag cost 3 times as much as the hat. The shirt cost \\(\\dfrac{1}{2}\\) as much as the hat. The pair of shoes cost \\$48 more than the shirt. How much money did Mr Soh have at first?
\\$[?]",
"answer0": "360",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2025 P6 Prelim P2 Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Muthu paid \\$18.50 for a total of 20 curry puffs and sandwiches. He paid \\$0.50 more for each sandwich than each curry puff. Muthu bought 10 more curry puffs than sandwiches. How much did he pay for each sandwich?
\\$[?]",
"answer0": "1.30",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2025 P6 Prelim P2 Q13",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The table shows the rental rate of each item: Pair of Rollerblades \\$10/hour, Skateboard \\$4.50/hour, Bicycle \\$7/hour.
The graph shows the number of hours Amy rented for each item. Amy rented 1 pair of rollerblades, 1 skateboard and 2 bicycles. The 2 bicycles were rented for the same duration. How much did Amy pay altogether?
\\$[?]",
"answer0": "71",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2025 P6 Prelim P2 Q16",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mr Tan had some bags to sell at his store. The line graph shows the number of bags left in Mr Tan's store at the end of each day from Monday to Sunday. Mr Tan sold each bag for \\$18. On Saturday, for every 2 bags sold to a customer, a third bag was given for free. On Sunday, for every bag sold to a customer, a second bag was given for free.
How many bags were left in Mr Tan's store at the end of Wednesday?
[?]",
"answer0": "92",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2025 P6 Prelim P2 Q16",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mr Tan had some bags to sell. The line graph shows the number of bags left at the end of each day from Monday to Sunday. Mr Tan sold each bag for \\$18.
How much money was collected from the sale of bags on Tuesday?
\\$[?]",
"answer0": "72",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2025 P6 Prelim P2 Q16",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Mr Tan had some bags to sell. The line graph shows the number of bags left at the end of each day from Monday to Sunday. Mr Tan sold each bag for \\$18. On Saturday, for every 2 bags sold to a customer, a third bag was given for free. On Sunday, for every bag sold to a customer, a second bag was given for free.
From Tuesday to Sunday, on which day was the most amount of money collected from the sale of bags?",
"answer0": "Wednesday",
"answer1": "Thursday",
"answer2": "Friday",
"answer3": "Saturday",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2025 P6 Prelim P2 Q16",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mr Tan had some bags to sell. The line graph shows the number of bags left at the end of each day from Monday to Sunday. Mr Tan sold each bag for \\$18. On Saturday, for every 2 bags sold to a customer, a third bag was given for free.
What was the least possible amount of money collected from the sale of bags on Saturday?
\\$[?]",
"answer0": "198",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2025 P6 Weighted Assessment 1 Q13",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "A lollipop cost \\$0.70. There were 80 lollipops in a box. Janie bought 8 such boxes of lollipops for her class party. How much did she spend on the lollipops?",
"answer0": "$408",
"answer1": "$428",
"answer2": "$448",
"answer3": "$560",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2025 P6 Weighted Assessment 1 Paper 2 Q3",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mr Tan bought a laptop. The price of the laptop before GST was \\$2580. He had to pay GST of 9% on the price of the laptop. What was the amount of GST he had to pay?
\\$[?]",
"answer0": "232.20",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2025 P6 Weighted Assessment 1 Paper 2 Q5",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Kendrik bought 4 different storybooks. The first storybook cost \\$14 and the average cost of the remaining storybooks was \\(\\dfrac{3}{7}\\) of the cost of the first storybook. How much did he pay for all the storybooks?
\\$[?]",
"answer0": "32",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2025 P6 Weighted Assessment 1 Paper 2 Q8",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Nurul and Peili went shopping together with a total sum of \\$60. Nurul spent twice as much as Peili. The amount Peili had left was \\$7 more than what she had spent. She had twice as much money left as Nurul. How much money did Nurul have at first?
\\$[?]",
"answer0": "31",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Nanyang 2025 P6 Weighted Assessment 1 Paper 2 Q17",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The amount of money Kathy had to the amount of money Alice had was 3 : 4. After Kathy spent \\$250 on a bag and gave \\$50 to Alice, the ratio became 1 : 2.
(a) How much money did Alice have at first? \\$[?]
(b) How much money did Kathy have at the end? \\$[?]",
"answer0": "1300",
"answer1": "675",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Pei Chun 2023 P6 Prelim Q23",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The usual price of a watch was \\$800. During a sale, the watch was selling at \\$560. What was the percentage discount given? [?]",
"answer0": "30",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Pei Chun 2023 P6 Prelim Q26",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The table shows the rates of charges for water consumption in a month.
First 20 m³: \\$1.50 per m³
Additional amount above 20 m³: \\$2.00 per m³
Mr Smith used 43 m³ of water. How much did he pay? [?]",
"answer0": "76",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Pei Chun 2023 P6 Prelim P2 Q1",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Jim's savings for 5 months were shown in the table.
January: \\$35, February: \\$28, March: \\$0, April: \\$51, May: \\$33.
What was the average amount of money Jim saved from January to May? [?]",
"answer0": "29.40",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Pei Chun 2024 P6 Prelim Q19",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A pen costs \\$0.45. What is the total cost of 80 such pens?
\\$ [?]",
"answer0": "36",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Pei Chun 2024 P6 Prelim Q26",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A tailor makes 8 shirts and 5 blouses. She sews 6 red buttons on each shirt and 4 green buttons on each blouse. Red buttons come in boxes of 5 at \\$1.35 each box; green buttons come in boxes of 4 at \\$2.20 each box. What is the least amount of money she has to pay for all the red and green buttons she needs?
\\$ [?]",
"answer0": "24.50",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Pei Chun 2024 P6 Prelim P2 Q4",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The pamphlet shows the rent charges of a function room. Medium Room: Happy Hours (12 p.m. to 7 p.m.) \\$14 per hour; Peak Hours (7 p.m. to 10 p.m.) \\$19 per hour. Jason and four of his friends rented a medium room from 5 p.m. to 8 p.m. How much did each of them have to pay?
\\$ [?]",
"answer0": "9.40",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Pei Chun 2024 P6 Prelim P2 Q11b",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A musical store offered 80 pianos at a 25% discount during a 5-day sale. During the sale, the discounted price of the piano was \\$735. After the sale, the remaining pianos were sold without discount. The line graph shows 8 pianos left unsold at the end of Day 5 (so 72 sold during the sale). What was the total amount of money collected from selling all the 80 pianos?
\\$ [?]",
"answer0": "60760",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Pei Hwa 2023 P6 Prelim P1 Q29",
"fix_types": [
"dollar_escape"
],
"type_id": 0,
"question": "Lina had \\$800 in her wallet. She spent some money from January to May. The line graph shows the amount of money in her wallet at the start of each month. (a) In which month did Lina spend half of the money she had at first? (b) The amount of money Lina spent in each month can be represented in the pie chart. Complete the pie chart with the month that represents the amount of money Lina spent. Write J for January, F for February, M for March and A for April in the blanks (i), (ii), (iii), (iv).",
"answer0": null,
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Pei Hwa 2023 P6 Prelim P2 Q7",
"fix_types": [
"dollar_escape"
],
"type_id": 0,
"question": "A shop was having a sale. A dress costs \\$3y, a shirt costs \\$y and shorts cost \\$(y + 20). Buy any 2 and get \\$5 off; buy any 3 and get \\$10 off. (a) Beth bought a dress and a shirt. How much did she pay altogether? Give your answer in terms of y in its simplest form. (b) Ann bought one of each item. She paid a total of \\$140. Find the value of y.",
"answer0": null,
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Pei Hwa 2023 P6 Prelim P2 Q12",
"fix_types": [
"dollar_escape"
],
"type_id": 0,
"question": "A shop sells big boxes at \\$35.50 each and small boxes at \\$9.80 each. Raja and Hannah bought the same total number of boxes. Both of them bought some big boxes. Raja bought 37 small boxes while Hannah bought 9 small boxes. (a) Who paid more for the boxes? Find the difference in the amount paid by Raja and Hannah. (b) Raja and Hannah spent less than \\$3000 on the boxes altogether. What was the greatest possible number of big boxes Raja bought?",
"answer0": null,
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "PLMGS 2022 P6 Prelim Q8",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "During a sale, a chair was sold at \\$210. This was 30% less than the usual price of the chair. What was the usual price of the chair?",
"answer0": "$63",
"answer1": "$147",
"answer2": "$300",
"answer3": "$700",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "PLMGS 2022 P6 Prelim Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Mina has \\$p. She has half as much money as Siti. Linda has \\$7 less than Siti. How much money does Linda have?",
"answer0": "$(2p − 7)",
"answer1": "$(2p + 7)",
"answer2": "$\\(\\left(\\dfrac{p}{2} - 7\\right)\\)",
"answer3": "$\\(\\left(\\dfrac{p}{2} + 7\\right)\\)",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "PLMGS 2022 P6 Prelim Q16",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "Find the value of (24 − 9 ÷ 3) × 5 [?]",
"answer0": "105",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "PLMGS 2022 P6 Prelim Q20",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "In a school hall, the number of girls was 40% less than the number of boys. There were 408 children altogether. How many girls were there in the hall? [?]",
"answer0": "153",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "PLMGS 2022 P6 Prelim Q26",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Norman's daily allowances for a particular week are shown in the table. Find his average daily allowance for the week. Ans: \\$[?]",
"answer0": "6",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "PLMGS 2022 P6 Prelim Q32",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The total cost of a handphone and a laptop is \\$1185. The handphone costs \\(\\dfrac{2}{3}\\) as much as the laptop. What is the cost of the handphone? Ans: \\$[?]",
"answer0": "474",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "PLMGS 2022 P6 Prelim Q34",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "The sum of three different 3-digit numbers is 375. The smallest number is 120. What is the biggest possible difference between the other two numbers? [?]",
"answer0": "13",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "PLMGS 2022 P6 Prelim Q35",
"fix_types": [
"missing_blank",
"dollar_escape"
],
"type_id": 2,
"question": "The table shows how Aaron, Bernice and Charlotte shared the cost of a present for their mother. They paid a total of \\$170 for the present. Aaron paid \\$4m, Bernice paid \\$(2m + 3), Charlotte paid \\$(m − 1). Find the value of m. [?]",
"answer0": "24",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent). Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "PLMGS 2022 P6 Prelim Q37",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "The participants of a run were divided equally into Group A and Group B. The ratio of the number of boys to the number of girls was 1 : 2 in Group A and 4 : 3 in Group B. A total of 345 girls took part in the run. How many more boys were there in Group B than in Group A? [?]",
"answer0": "75",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "PLMGS 2022 P6 Prelim Q39",
"fix_types": [
"missing_blank",
"dollar_escape"
],
"type_id": 2,
"question": "The actual average income of a group of adults was \\$3150. When Ms Tan recorded the income of these adults, she wrongly keyed in one adult's income as \\$2400 when it should have been \\$4200. As a result, Ms Tan calculated the average income as \\$3100. How many adults were there in the group? [?]",
"answer0": "36",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent). Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "PLMGS 2022 P6 Prelim Q46",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "Sue had \\(\\dfrac{2}{3}\\) as many stickers as Peggy. Esther had 12 more stickers than Sue. After Peggy gave 40 stickers to Sue and some stickers to Esther, all three girls had the same number of stickers. (a) How many stickers did Peggy give to Esther? [?]",
"answer0": "28",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "PLMGS 2022 P6 Prelim Q47",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "Sue had \\(\\dfrac{2}{3}\\) as many stickers as Peggy. Esther had 12 more stickers than Sue. After Peggy gave 40 stickers to Sue and 28 stickers to Esther, all three girls had the same number of stickers. (b) How many stickers did the three girls have altogether? [?]",
"answer0": "768",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "PLMGS 2022 P6 Prelim Q49",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "Mr Lim and Mr Tan each had 200 identical pots to sell. The line graphs show the total number of pots sold by the end of each day. (b) How many pots did Mr Lim sell on Day 6? [?]",
"answer0": "60",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "PLMGS 2022 P6 Prelim Q50",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mr Lim and Mr Tan each had 200 identical pots to sell. The original price of each pot was \\$70. On the day when Mr Tan had sold 80% of his pots, Mr Lim decided to offer a 15% discount for his remaining pots. How much did Mr Lim collect from the sale of these remaining pots? Ans: \\$[?]",
"answer0": "4760",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "PLMGS 2022 P6 Prelim Q55",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "The figures form a pattern. The total number of squares in Figure n is n × (n + 1). (b) How many white squares are there in Figure 15? [?]",
"answer0": "120",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "PLMGS 2022 P6 Prelim Q56",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "The figures form a pattern. (c) How many grey squares are there in Figure 80? [?]",
"answer0": "6480",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "PLMGS 2022 P6 Prelim Q57",
"fix_types": [
"missing_blank",
"dollar_escape"
],
"type_id": 2,
"question": "Lily and Megan had an equal number of coins. Lily had an equal number of fifty-cent coins and twenty-cent coins. \\(\\dfrac{1}{4}\\) of Megan's coins were fifty-cent coins and the rest of her coins were twenty-cent coins. Lily had \\$13.50 more than Megan. (a) How many coins did each girl have? [?]",
"answer0": "180",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent). Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "PLMGS 2022 P6 Prelim Q58",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "Lily and Megan had an equal number of coins (180 each). Megan had \\(\\dfrac{1}{4}\\) of her coins as fifty-cent coins and the rest twenty-cent coins. (b) Megan decided to exchange all her twenty-cent coins for fifty-cent coins of the same value. What was the percentage increase in her number of fifty-cent coins? [?]",
"answer0": "120",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Inserted 1 [?] blank(s) at the answer point (was absent)."
},
{
"source": "PLMGS 2025 P6 Prelim Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Ariana had \\$28. After buying 7 identical cups, she had \\$y left. Express the cost of 1 cup in terms of y.",
"answer0": "$(28 − 7y)",
"answer1": "\\($\\left(28-\\dfrac{y}{7}\\right)\\)",
"answer2": "\\($\\left(\\dfrac{28y}{7}\\right)\\)",
"answer3": "\\($\\left(\\dfrac{28-y}{7}\\right)\\)",
"correct_answer": 3,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "PLMGS 2025 P6 Prelim P2 Q8",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Callys always spends 70% of her salary. Her salary for December was 40% more than that for November. As a result, she spent \\$560 more in December than in November. How much was her salary in December? [?]",
"answer0": "2800",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "PLMGS 2025 P6 Prelim P2 Q10",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Winnie and Sophie were paid a total of \\$3620 for a job. Winnie was paid \\$1960 more than Sophie.
(a) How much was Winnie paid for the job? \\$[?]
(b) Winnie and Sophie were paid based on the number of days they worked. Winnie worked 3 times as many days as Sophie. Winnie was paid \\$5 more than Sophie per day. How many days did Sophie work? [?]",
"answer0": "2790",
"answer1": "20",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "PLMGS 2025 P6 Prelim P2 Q14",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Ben baked three types of muffins for sale. The number of each type is shown by a bar graph; the chocolate and vanilla bars are not drawn (strawberry is shown). (a) The ratio of chocolate : strawberry : vanilla muffins is 7 : 5 : 9. Draw the bars for chocolate and vanilla. (b) Ben sold all his strawberry muffins at \\$3.20 each. He collected a total of \\$192 from the sale of the strawberry muffins. How many muffins did he bake altogether? [?]",
"answer0": "252",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "PLMGS 2025 P6 Prelim P2 Q17",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Stall A and Stall B sold the same total number of burgers and sandwiches at a school carnival. A burger costs \\$4.50 and a sandwich costs \\$2.00. Stall A sold some burgers and 64 sandwiches. Stall B sold some burgers and 96 sandwiches.
(a) Which stall collected more money? Stall: [?]. How much more? \\$[?]
(b) The total mass of burgers and sandwiches sold at Stall A was 8.32 kg. Each burger is 60 g heavier than each sandwich. What is the total mass of burgers and sandwiches sold by Stall B in kg? [?] kg",
"answer0": "80",
"answer1": "6.40",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Raffles 2023 P6 Weighted Assessment 1 Q1",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "What is the missing number in the box?
\\$3\\,000\\,000 + 10\\,000 + [?] + 8 = 3\\,014\\,008\\$",
"answer0": "4000",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Raffles 2023 P6 Weighted Assessment 1 Q8",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Terry had 3 times as many \\$2-notes as \\$5-notes. He had \\$385 altogether. How many \\$5-notes did Terry have?
[?]",
"answer0": "35",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Raffles 2023 P6 Weighted Assessment 1 Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Tim and Jerry were paid a total of \\$8568 for selling tickets. Tim was paid \\$5304 more than Jerry. (a) How much was Tim paid for selling the tickets? \\$[?]
(b) Tim and Jerry were paid based on the number of tickets they sold. Tim sold 3 times as many tickets as Jerry. Tim was paid \\$5 more than Jerry for selling each ticket. How many tickets did Tim sell? [?]",
"answer0": "6936",
"answer1": "408",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Raffles 2023 P6 Weighted Assessment 2 Q12",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Alan, Ben, and Chandra shared the cost of a present for their cousin. Alan paid \\(\\dfrac{1}{5}\\) of the total amount. Ben paid \\(\\dfrac{3}{5}\\) of the total amount Alan and Chandra paid. Given that the present cost \\$224, how much did Chandra pay for the present? [?]",
"answer0": "95.20",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Raffles 2024 P6 Prelim Q19",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Usual price of a toaster is \\$80 and the sale price is \\$56. What is the percentage discount for the toaster? [?]%",
"answer0": "30",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Raffles 2024 P6 Prelim Paper 2 Q6a",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "The table shows the salary Sumin was paid for working at a café: Monday to Friday \\$3m per day, Saturday \\$(5m + 8), Sunday \\$(4m - 2). Sumin worked from Monday to Saturday in her first week. What was her total salary for the first week in terms of m? Give your answer in the simplest form.",
"answer0": "$(20m + 8)",
"answer1": "$(18m + 8)",
"answer2": "$(15m + 8)",
"answer3": "$(20m - 2)",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Raffles 2024 P6 Prelim Paper 2 Q6b",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Using the café salary rates (Saturday \\$(5m + 8), Sunday \\$(4m - 2)), Sumin only worked on Saturday and Sunday in her second week. She was paid a total amount of \\$240 for both days. Find the value of m. [?]",
"answer0": "26",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Raffles 2024 P6 Prelim Paper 2 Q10",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mrs Raja spent \\(\\dfrac{1}{3}\\) of her money on a bag and 2 identical belts. The bag cost twice as much as each belt. Mrs Raja spent \\(\\dfrac{3}{4}\\) of her remaining money on a shirt. She spent \\$58 more on the shirt than on the bag. How much money did Mrs Raja have at first? [?]",
"answer0": "174",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Raffles Girls 2024 P6 Weighted Assessment 1 Q8",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Arjun paid \\$432 for a dining table and 4 identical chairs. The price of each chair was \\(\\dfrac{1}{5}\\) of the price of the dining table. How much did Arjun pay for the dining table? [?]",
"answer0": "240",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Raffles Girls 2024 P6 Weighted Assessment 1 Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A departmental store gives a discount of \\$4 for every \\$25 spent. The jacket costs \\$189 before discount. What is the price of the jacket after discount? [?]",
"answer0": "161",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Raffles Girls 2024 P6 Weighted Assessment 1 Q14",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "The table shows ticket prices: Adult \\$30, Senior Citizen \\$18, Student \\$12. The number of student tickets sold was \\(\\dfrac{5}{11}\\) of the number of adult tickets sold. \\(\\dfrac{1}{9}\\) of the tickets sold were senior citizen tickets. A total of \\$9372 was collected.
(a) What fraction of the tickets sold were student tickets?
(b) What was the total number of tickets sold?",
"answer0": "(a) \\(\\dfrac{5}{18}\\) (b) 396",
"answer1": "(a) \\(\\dfrac{5}{11}\\) (b) 396",
"answer2": "(a) \\(\\dfrac{5}{18}\\) (b) 264",
"answer3": "(a) \\(\\dfrac{11}{18}\\) (b) 396",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Raffles Girls 2025 P6 Prelim Q19",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A watch costs \\$200 before 9% GST. What is the cost of the watch including GST?
\\$ [?]",
"answer0": "218",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Raffles Girls 2025 P6 Prelim P2 Q2",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mr Johnson was paid for working as an assistant at the rate shown in the table. He was paid a total of \\$646 for working 58 hours last week. The rate for the first 50 hours was covered by an ink blot. How much was he paid each hour for the first 50 hours?
\\$ [?]",
"answer0": "11",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Raffles Girls 2025 P6 Prelim P2 Q14",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The table shows the ticket prices for a theme park.
(a) Ramu bought 3 adult tickets and 5 children tickets. What was the least amount he could have paid? \\$ [?]
(b) Timothy purchased his tickets online and enjoyed a 10% discount. He bought tickets for 4 adults and 3 children. What was the least amount he could have paid? \\$ [?]
(c) Mr and Mrs Tan went to the theme park with their children. They spent \\$99 on tickets. How many children went to the theme park? [?]",
"answer0": "134",
"answer1": "110.70",
"answer2": "4",
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Raffles Girls 2025 P6 Weighted Assessment 1 Q8",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Ron saved \\$494 of his allowance. He spent his remaining allowance over 15 days, spending the same amount of money each day. During the 15 days, he spent \\(\\dfrac{2}{7}\\) of his allowance in 8 days. How much was Ron's allowance?
\\$[?]",
"answer0": "1064",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Raffles Girls 2025 P6 Weighted Assessment 1 Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "At a carnival, a round balloon cost \\$3 and a star balloon cost \\$4 more than a round balloon. The number of star balloons sold was \\(\\dfrac{3}{5}\\) of the round balloons sold. A total of \\$1044 was collected from the sale of all the balloons. How many round and star balloons were sold altogether?
[?]",
"answer0": "232",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Raffles Girls 2025 P6 Weighted Assessment 1 Q10",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Jasmine started a savings plan by putting 2 notes in a money box every week. Each note was either a two-dollar note or a five-dollar note. Her mother would put in a ten-dollar note every 4 weeks. The total value of the notes after 17 weeks was \\$171.
(a) How many notes were there in the box after 17 weeks? [?]
(b) How many of the notes were five-dollar notes? [?]",
"answer0": "38",
"answer1": "21",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Raffles Girls 2025 P6 Weighted Assessment 1 Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "In a bakery, tarts and cupcakes were sold only in boxes. A box of 6 tarts cost \\$33 and a box of 8 cupcakes cost \\$28.
(a) Yasmin bought an equal number of tarts and cupcakes. She spent \\$96 more on the tarts than the cupcakes. How many boxes of tarts did she buy altogether? [?]
(b) Both Caleb and Dan bought tarts and cupcakes at the bakery. Dan bought 20 boxes of cupcakes. Caleb bought 8 boxes of cupcakes. The total number of boxes of tarts and cupcakes they each bought was the same. How many more cupcakes and tarts did Dan buy than Caleb? [?]",
"answer0": "8",
"answer1": "24",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Raffles Girls' Primary School 2025 P6 WA2 Q7",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Jamie deposited a sum of money into a savings account at the beginning of the year. The interest was 2% per year. She received \\$112 interest after 1 year. How much did Jamie deposit into the savings account?
\\$ [?]",
"answer0": "5600",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Raffles Girls' Primary School 2025 P6 WA2 Q9",
"fix_types": [
"missing_blank"
],
"type_id": 2,
"question": "Some adults and children visited the safari over 2 days. The ratio of the number of adults to children on day 1 was 5 : 3. The ratio of the number of adults to children on day 2 was 3 : 1. There were 4 times as many visitors on day 1 as on day 2. The total number of visitors over both days was more than 1755. What was the smallest possible number of children on day 2? [?] [?] [?] [?]",
"answer0": "22",
"answer1": "44",
"answer2": "88",
"answer3": "11",
"correct_answer": 0,
"note": "Inserted 4 [?] blank(s) at the answer point (was absent)."
},
{
"source": "Rosyth 2022 P6 Prelim P1 Q12",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "A shop gave a discount of \\$0.30 for every \\$2 spent. Paul paid \\$8.50 for a file after discount. What was the price of the file before the discount?",
"answer0": "$9.70",
"answer1": "$9.40",
"answer2": "$9.10",
"answer3": "$8.80",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2022 P6 Prelim P1 Q17",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "An item has a sale price of \\$68 and a usual price of \\$80. What is the percentage discount for the item? [?] %",
"answer0": "15",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2022 P6 Prelim P1 Q26",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The table shows the rental cost of booking a badminton court: Weekdays \\$3 per hour, Weekends \\$5 per hour. Lily spent a total of \\$42 to book the badminton court for 4 hours on Tuesday and a number of hours on Saturday. How long did she book the badminton court on Saturday? [?] h",
"answer0": "6",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2022 P6 Prelim P2 Q16",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "At a shop, pens were only sold in boxes. A box of 6 ballpoint pens cost \\$1.80 and a box of 4 gel pens cost \\$6.40.
(a) Sam spent \\$10 to buy both types of pens. Find the least total number of ballpoint pens and gel pens bought by Sam. [?]
(b) Tom bought 22 more gel pens than ballpoint pens. The total number of pens he bought was more than 40 but fewer than 60. How many pens did Tom buy altogether? [?]",
"answer0": "16",
"answer1": "58",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2022 P6 Prelim P2 Q17",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "In January, a kindergarten was given a total sum of \\$2400. It spent 80% of the sum of money on books and the rest on stationery. In February, the sum given to the kindergarten was increased. It increased its spending on books by \\$240. It spent the remaining 20% of the sum given in February on stationery.
(a) How much did the kindergarten spend on stationery in January? [?]
(b) What was the percentage increase in the sum of money spent on stationery in February? [?] %",
"answer0": "480",
"answer1": "12.5",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2023 P6 Prelim Q10",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "The postage rate for sending letters to Japan is: First 20 g costs \\$0.80; per additional 10 g or part thereof costs \\$0.25. Mrs Tan sent a letter weighing 38 g to Japan. How much did she pay for the postage?",
"answer0": "$1.00",
"answer1": "$1.05",
"answer2": "$1.30",
"answer3": "$1.60",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2023 P6 Prelim Q12",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Eddie bought a card and a sunflower for \\$8.20. Jane bought a card and 2 sunflowers for \\$14. How much did a card cost?",
"answer0": "$2.40",
"answer1": "$5.80",
"answer2": "$11.60",
"answer3": "$22.20",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2023 P6 Prelim Q19",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The pie chart shows Natalie's expenditure last month. Bills = 15%, Food = \\(\\dfrac{1}{2}\\), Transport is a right angle (25%), Books = \\$40. How much did she spend on food?
\\$[?]",
"answer0": "200",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2023 P6 Prelim Q22",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Dave had more money than Jerry. After Dave gave Jerry \\$140, they have the same amount of money. How much more money did Dave have than Jerry at first?
\\$[?]",
"answer0": "280",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2023 P6 Prelim P2Q6",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A school is collecting money for a donation drive. \\(\\dfrac{1}{2}\\) of the students in the school donated \\$3. \\(\\dfrac{2}{5}\\) of them donated \\$4. The rest of the students donated \\$5. A total of \\$9000 in donation is collected from the school. How many students are there in the school?
[?]",
"answer0": "2500",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2023 P6 Prelim P2Q13",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Shop A, Shop B and Shop C sell an identical pen at different prices: Shop A \\$1.20, Shop B \\$1.50, Shop C \\$1.00. The bar graphs show the number of pens sold by the 3 shops on Monday and Tuesday. Shop A sold 95 pens on Monday and 100 pens on Tuesday.
(a) How much money was collected altogether by Shop A from the sale of the pens on Monday and Tuesday?
\\$[?]",
"answer0": "234",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2023 P6 Prelim P2Q13",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "On Tuesday, a discount was given in Shop B. Shop B collected \\$6.60 less on Tuesday than on Monday. What was the percentage discount given in Shop B on Tuesday?
[?] %",
"answer0": "30",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2023 P6 Prelim P2Q17",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Laptops were sold at a discount: 1st laptop 15% discount, 2nd laptop 30% discount, 3rd laptop 40% discount. Jian Hao paid a total of \\$5805 for 3 similar laptops, including an 8% GST.
(a) What was the original price of a laptop without GST? \\$[?]
(b) If he had bought the 3 laptops without any discount, how much more would he have to pay not including the GST? \\$[?]",
"answer0": "2500",
"answer1": "2125",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2023 P6 Weighted Assessment 1 Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Kylie received a fixed sum of salary monthly. In January, she saved 20% of her salary. Her savings in February increased by 40%. Her total savings for the 2 months was \\$480. What was the sum of salary given to her monthly?
\\$[?]",
"answer0": "1000",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2023 P6 Weighted Assessment 1 Q20",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Below are the prices of facial masks from three different stores.
Store A — Original price: \\$4.20 for 1 mask. Promotion: 50% discount for all masks!
Store B — Original price: \\$25.90 for 1 pack of 10. Promotion: For each pack bought, buy a 2nd pack at 40% discount!
Store C — Original price: \\$3.80 for 1 mask. Promotion: Buy 5 get 4 free!
Of the three stores, which store should Mrs Chong buy from if she wants to spend the least amount of money for 100 masks, and how much would she need to pay?",
"answer0": "Store B, $207.20",
"answer1": "Store A, $210.00",
"answer2": "Store C, $212.80",
"answer3": "Store B, $259.00",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2023 P6 Weighted Assessment 2 Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Danial, Eric and Francis share some money. Danial has \\(\\$4\\) more than Eric and Francis has \\(\\$5p\\) more than Eric. If Eric has \\(\\$4p\\), how much money do they have altogether?",
"answer0": "$(17p+4)",
"answer1": "$(13p+4)",
"answer2": "$(9p+4)",
"answer3": "$(17p+8)",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2023 P6 Weighted Assessment 2 Q15",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Ahmad receives the same amount of allowance every week. He spent \\$680 of his allowance and saved the rest. When he increased his spending by 30%, his savings decreased by 20%. How much was his allowance? \\$[?]",
"answer0": "1700",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2023 P6 Weighted Assessment 2 Q16",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Raja and Muthu had a total of \\$402.60. Raja spent 75% of his money and Muthu spent 50% of his money. In the end, Muthu and Raja had the same amount of money left. How much money did they spend altogether? \\$[?]",
"answer0": "268.40",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2024 P6 Prelim P1 Q10",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Miss Lim travelled 3.2 km in a taxi from home to the mall. Her taxi fare was based on the charges shown.
First km: \\$4.80. Every additional 400 m or less: \\$0.20.
How much was her taxi fare?",
"answer0": "$5.40",
"answer1": "$5.80",
"answer2": "$6.00",
"answer3": "$6.40",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2024 P6 Prelim P1 Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Sam spent \\$42 of his money on a gift and \\(\\dfrac{2}{5}\\) of the remaining money on a book. In the end, he had \\(\\dfrac{1}{4}\\) of his money left. How much money did Sam have at first?",
"answer0": "$42",
"answer1": "$70",
"answer2": "$72",
"answer3": "$180",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2024 P6 Prelim P1 Q12",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Limin, Ming and Raju each had some money at first. Limin gave Ming \\$2.50. Ming then gave Raju \\$1.80. Raju then spent \\$3 on a pen. In the end, they each had \\$5. What was the difference between the amount Limin and Raju had at first?",
"answer0": "$0.50",
"answer1": "$1.20",
"answer2": "$1.30",
"answer3": "$3.00",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2024 P6 Prelim P1 Q21",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Alice saves \\$2 every day. Her mother gives her \\$1 for every 10 days that she saves. What is the total amount of money she will have after 43 days? Ans: \\$[?]",
"answer0": "90",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2024 P6 Prelim P2 Q7",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A savings coupon gives: get the first refrigerator at 10% discount, get the second one at 20% discount. Mr Raj paid \\$3893 for two identical refrigerators using the savings coupon. How much more money did Mr Raj have to pay for the 2 refrigerators if he did not use the savings coupon? Ans: \\$[?]",
"answer0": "687",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2024 P6 Prelim P2 Q8",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Minah saved some \\$2-notes and \\$5-notes in the ratio of 5 : 3. When she took out 36 \\$2-notes and added the same number of \\$5-notes, the ratio became 2 : 3. Find the total value of all the \\$5-notes Minah saved at first. Ans: \\$[?]",
"answer0": "300",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2024 P6 Prelim P2 Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "At a charity walkathon, there was an equal number of children who took part in either the 3-km walk or the 5-km walk. There were 208 girls who took part in the 3-km walk and 162 girls who took part in the 5-km walk. 60% of the boys took part in the 5-km walk. For every 1-km walked by the children, \\$10 was donated to charity.
(a) How many boys took part in the 5-km walk? [?]
(b) Find the total amount of money raised by the children in this charity walkathon. Ans: \\$[?]",
"answer0": "138",
"answer1": "24000",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2024 P6 Term Assessment 1 Q15",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Every month, Gary saved \\$300 of his salary and spent the rest. In December, his spending increased by 4% and he only managed to save \\$240. How much was his salary? [?]",
"answer0": "1740",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2024 P6 Term Assessment 1 Q24",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mrs Teo and Mr Lim bought the same type of washing machine from a store. Mrs Teo paid \\$720 for her washing machine after a 20% discount. However, Mr Lim only paid \\$585 for his washing machine after the discount. What was the percentage discount given to Mr Lim? [?]",
"answer0": "35",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2024 P6 Term Assessment 1 Q30",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "In Country X, the height of six 10-cent coins is the same as the height of five 20-cent coins. Diagram 2 shows an unknown number of such 10-cent coins stacked to the same height as another stack of such 20-cent coins. The total value of the 2 stacks of coins in Diagram 2 is \\$8.80. Find the number of 10-cent coins used in Diagram 2. [?]",
"answer0": "30",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2024 P6 Term Assessment 2 P1 Q29",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Adam had \\$48 more than David. When David gave Adam \\$21, Adam had four times as much money as David. How much money did David have at first? [?]",
"answer0": "51",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2024 P6 Term Assessment 2 P2 Q5",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Jane parked her car at a car-park from 12.35 pm to 5.20 pm. The parking rates are: First hour \\$4.60; Every 30 minutes or part thereof \\$2.00. How much did she have to pay for parking? [?]",
"answer0": "20.60",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2024 P6 Term Assessment 2 P2 Q7",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Kovan Primary School is having a musical. Mrs Teo is in charge of printing invitation cards needed by each group. The bar graph shows the number of cards per group. The printing charges are: First 200 cards \\$2.00 each; Next 100 cards \\$1.50 each; Every additional card \\$0.60 each. How much did Mrs Teo have to pay for the total number of invitation cards printed for the four groups? [?]",
"answer0": "592",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2024 P6 Term Assessment 2 P2 Q8",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The ratio of the number of adults to the number of children at a concert was 5 : 3. The price of one adult ticket was \\$45 while the price of a child ticket was \\$23. The total amount of money collected from the sale of tickets was \\$5292. How many adults attended the concert? [?]",
"answer0": "90",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2024 P6 Term Assessment 2 P2 Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mr Samad spent \\(\\dfrac{1}{6}\\) of his money on 2 shirts and 3 jackets. Each jacket cost twice as much as each shirt. He then spent \\(\\dfrac{2}{5}\\) of his remaining money on a wallet. He spent \\$23.80 more on the wallet than on the 2 shirts. How much money did Mr Samad have at first? [?]",
"answer0": "81.60",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2024 P6 Term Assessment 2 P2 Q15",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Matthew had \\$72 more than Cayden. Matthew spent 90% of his money and Cayden spent 40% of his. In the end, Cayden has twice as much money as Matthew. How much money did Matthew have at first? [?]",
"answer0": "108",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2025 P6 Prelim Q4",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Ali paid \\$135 for 9 swimming lessons. At this rate, how much will he pay for 20 swimming lessons?",
"answer0": "$45",
"answer1": "$60.75",
"answer2": "$300",
"answer3": "$2700",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2025 P6 Prelim Q18",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The cost of a bag is increased from \\$40 to \\$50. What is the percentage increase in the cost of the bag?
[?]%",
"answer0": "25",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2025 P6 Prelim Q26",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The table shows the number of points that a customer could earn from the amount spent at a shop: Every \\$10 spent earns 100 points.
Hakim spent \\$98 at the shop. How many points did he earn?
[?]",
"answer0": "900",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2025 P6 Prelim Q26",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A voucher worth \\$5 is given for every 1000 points earned. Amy received three \\$5 vouchers at the shop. What was the minimum amount of money she had spent to earn these vouchers?
\\$[?]",
"answer0": "300",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2025 P6 Prelim P2 Q6",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Tom had some amount of money. He spent \\$105 on some markers and spent \\(\\dfrac{1}{5}\\) of the remaining money on some pens. The rest of the money was spent on some notebooks. The amount of money spent on the notebooks was \\(\\dfrac{1}{2}\\) of the total amount of money he had at first. How much money did he have at first?
\\$[?]",
"answer0": "280",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2025 P6 Prelim P2 Q8",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "The bar graph shows the ticket prices for the museums (Art \\$16, Toy \\$12, History \\$28, Science \\$40). The pie chart shows the tickets sold on Sunday (Art 86, Science 172, History 258, Toy 516).
Which museum collected the most money from the sale of the tickets?",
"answer0": "Art Museum",
"answer1": "Toy Museum",
"answer2": "History Museum",
"answer3": "Science Museum",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2025 P6 Prelim P2 Q8",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The bar graph shows the ticket prices for the museums (Art \\$16, Toy \\$12, History \\$28, Science \\$40). The pie chart shows the tickets sold on Sunday (Art 86, Science 172, History 258, Toy 516). The History Museum collected the most money. What was the amount of money?
\\$[?]",
"answer0": "7224",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2025 P6 WA1 Q18",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "What is the percentage discount for the shirt shown?
Usual Price: \\$60
Sale Price: \\$48
[?]%",
"answer0": "20",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2025 P6 WA1 Q26",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The table shows the parking charges at a car park. Shuling parked her car from 4.15 p.m. to 8 p.m. on a day. How much did she have to pay?
Parking Charges: For the first hour or part thereof \\$2.50; For every additional \\(\\dfrac{1}{2}\\) hour or part thereof \\$1.20; After 6 p.m. \\$3 per entry.
\\$[?]",
"answer0": "7.90",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2025 P6 WA1 Q29",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Ishan had \\$700. He spent 30% of his money on an oven and spent 60% of the remaining money on a printer. How much money did he have left?
\\$[?]",
"answer0": "196",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2025 P6 WA1 Q30",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Shawn counted the number of coins in his piggy bank. 30% of the coins are \\$1 coins. 16% are 50¢ coins while the rest are 10¢ coins. The total value of the 50¢ coins is \\$72. Find the total value of the 10¢ coins.
\\$[?]",
"answer0": "48.60",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2025 P6 WA1 Paper 2 Q6",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Xin Hui bought 15 similar pens and 8 similar files. Each file cost twice as much as each pen. The total cost of a pen and a file is \\$4.20. How much did Xin Hui pay altogether?
\\$[?]",
"answer0": "43.40",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2025 P6 WA1 Paper 2 Q8",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Lynette bought some bags at an average price of \\$350 each. Then she bought another 2 bags for \\$925 each and the average price became \\$400. How many bags did she buy altogether?
[?]",
"answer0": "21",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2025 P6 WA1 Paper 2 Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Muthu has some \\$2, \\$5 and \\$10 dollar notes. \\(\\dfrac{2}{3}\\) of the number of the \\$10 notes is equal to \\(\\dfrac{2}{5}\\) of the number of \\$2 notes which is equal to \\(\\dfrac{1}{3}\\) of the number of \\$5 notes. After he took out six \\$5 notes and exchanged them for \\$2 notes, the number of the \\$5 notes to the number of the \\$10 notes is now the same. Find the total value of the notes.
\\$[?]",
"answer0": "140",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2025 P6 WA1 Paper 2 Q13",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A shop sells erasers (4 for \\$1.99) and pencils (5 for \\$2.99). Mdm Lim spent \\$139.45 buying some erasers and pencils for her class. She then packed all the erasers and pencils into bags. The ratio of the number of erasers to the number of pencils in each bag was 2 : 3. How many pencils did she buy?
[?]",
"answer0": "150",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth 2025 P6 WA1 Paper 2 Q15",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Aini bought some sweets and chocolates. A sweet cost 40 cents each and a chocolate cost 90 cents each. She bought 150 more sweets than chocolates. She spent \\$40 more on the sweets than on the chocolates. How much did she spend altogether?
\\$[?]",
"answer0": "112",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth School 2025 P6 WA2 P1 Q7",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "A pen cost 80 cents. Siling bought \\(w\\) similar pens. She gave the cashier some money and received \\$2 as change. How much did she give to the cashier?",
"answer0": "$(2 + 0.08w)",
"answer1": "$(2 + 0.8w)",
"answer2": "$(2 + 8w)",
"answer3": "$(2 + 80w)",
"correct_answer": 1,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth School 2025 P6 WA2 P1 Q12",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "The table shows overdue-book charges: 50 cents per day for the first 7 days, 80 cents per day after 7 days. Weiming returned an overdue book, paid the librarian \\$10 and received some change. What was the maximum number of days his book could be overdue?",
"answer0": "12 days",
"answer1": "14 days",
"answer2": "15 days",
"answer3": "16 days",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth School 2025 P6 WA2 P1 Q15",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Jack spent \\(\\dfrac{1}{4}\\) of his money on a new bicycle, \\(\\dfrac{3}{8}\\) of it on a camera and \\(\\dfrac{1}{3}\\) of the remainder on a bag and a watch. The cost of the watch was \\$110 and the bag cost \\$80 more than the watch. How much was the bicycle?",
"answer0": "$600",
"answer1": "$800",
"answer2": "$1600",
"answer3": "$2400",
"correct_answer": 1,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth School 2025 P6 WA2 P1 Q22",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The line graph shows the amount of money Jenny saved from January to June 2024 (Jan 30, Feb 60, Mar 80, Apr 60, May 60, Jun 40). She was given a monthly allowance of \\$200. (a) How much did she spend from March to May? \\$ [?]
(b) What was the percentage increase in her saving from January to March? Round off to 2 decimal places. [?] %",
"answer0": "400",
"answer1": "166.67",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth School 2025 P6 WA2 P1 Q29",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Siti bought some hairclips at \\$4 each and ribbons at \\$2 each. \\(\\dfrac{1}{4}\\) of the items she bought were hairclips. The total amount of money spent on all the items was \\$60. How many hairclips and ribbons did she buy altogether?
[?]",
"answer0": "24",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth School 2025 P6 WA2 P2 Q3",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The table shows the parking charges at a car park: \\$3 for the first hour, then \\$1.25 for every additional \\(\\dfrac{1}{2}\\) hour or part thereof. Mr Teo parked his car from 1 p.m. to 5.39 p.m. How much parking charges did he have to pay?
\\$ [?]",
"answer0": "13",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth School 2025 P6 WA2 P2 Q5",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Company A and Company B sent recyclable waste. Company A: Plastic 90 kg, Paper 75 kg, Glass 56 kg. Company B: Plastic 100 kg, Paper 50 kg, Glass 84 kg. Prices: Plastic \\$0.30/kg, Paper \\$0.80/kg, Glass \\$1.00/kg. (a) Which company received more money? [?] (b) How much more? \\$ [?]",
"answer0": "11",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth School 2025 P6 WA2 P2 Q12",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Mrs Tan had a sum of money. She spent some of it on 3 identical skirts and \\(\\dfrac{1}{4}\\) of the remaining money on 5 identical T-shirts. After that, she was left with \\(\\dfrac{1}{3}\\) of her money. One skirt cost \\$55 more than one T-shirt. What fraction of her money did she spend on the 3 skirts?",
"answer0": "\\(\\dfrac{5}{9}\\)",
"answer1": "\\(\\dfrac{4}{9}\\)",
"answer2": "\\(\\dfrac{1}{3}\\)",
"answer3": "\\(\\dfrac{2}{3}\\)",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth School 2025 P6 WA2 P2 Q12b",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mrs Tan had a sum of money. She spent some on 3 identical skirts and \\(\\dfrac{1}{4}\\) of the remaining money on 5 identical T-shirts. After that, she was left with \\(\\dfrac{1}{3}\\) of her money. One skirt cost \\$55 more than one T-shirt. How much money did she have at first?
\\$ [?]",
"answer0": "337.50",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Rosyth School 2025 P6 WA2 P2 Q15",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The price of a bag in shop A was 75% of the price which shop B sold it for. The bag cost \\$900 in shop B. During a sale, both shops offer an equal percentage discount on the bag. The discounted price of the bag before GST in shop B is \\$184.50 more than the discounted price of the bag in shop A before GST. What is the percentage discount?
[?] %",
"answer0": "18",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika 2022 P6 Prelim P1 Q26",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Aisha received \\$80 from her parents each month for her pocket money. After spending, she saved the rest. The line graph shows the amount of pocket money Aisha spent each month. How much did Aisha save in February? [?]",
"answer0": "32",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika 2022 P6 Prelim P1 Q27",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Aisha received \\$80 from her parents each month for her pocket money. The line graph shows the amount of pocket money Aisha spent each month. In which month did Aisha save the most?",
"answer0": "January",
"answer1": "February",
"answer2": "March",
"answer3": "April",
"correct_answer": 3,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika 2022 P6 Prelim P2 Q7",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Claire went shopping with 12 more ten-dollar notes than two-dollar notes. After paying \\$180 for a suitcase with some ten-dollar notes, the number of the two-dollar notes she had was four times the number of ten-dollar notes left.
(a) How many ten-dollar notes did Claire have left? [?]
(b) How much money did she have at first? [?]",
"answer0": "2",
"answer1": "216",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika 2022 P6 Prelim P2 Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "At a concert, 60% of the tickets were sold at full price and 35% of the tickets were sold at half price. The remaining 70 tickets were given away free. The total amount of money collected was \\$6510.
(a) How many tickets were sold at full price? [?]
(b) What was the full price of a ticket? [?]",
"answer0": "840",
"answer1": "6",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika 2022 P6 Prelim P2 Q15",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mindy wanted to buy 36 identical pens with her money but she was short of \\$7.80. She decided to spend \\(\\dfrac{4}{7}\\) of her money on 15 identical pens and \\(\\dfrac{1}{2}\\) of the remaining money on a ruler.
(b) Find the cost of each pen. [?]
(c) How much did Mindy have at first? [?]",
"answer0": "0.80",
"answer1": "21",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika 2023 P6 Prelim Q13",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "The usual price of a study table was \\$300. During a sale, Mrs Kumar bought 2 such study tables at a discount of 60%. How much was the total discount?",
"answer0": "$120",
"answer1": "$180",
"answer2": "$240",
"answer3": "$360",
"correct_answer": 3,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika 2023 P6 Prelim Q15",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Xavier planned to save \\$21 using his pocket money. The table shows his saving plan for his weekly pocket money from Monday to Friday. Xavier started to save on a Friday. On which day of the week did Xavier manage to save exactly \\$21?",
"answer0": "Monday",
"answer1": "Tuesday",
"answer2": "Wednesday",
"answer3": "Thursday",
"correct_answer": 3,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika 2023 P6 Prelim Q29",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A group of students had an average of \\$10. Three students with a sum of \\$57 joined the group and the average amount of each student increased by \\$3. How many students were there in the group at first? [?]",
"answer0": "6",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika 2023 P6 Prelim P2-Q17",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "In a bakery, donuts and cupcakes are sold only in boxes. A box of 8 donuts costs \\$15 and a box of 5 cupcakes costs \\$7. Alice and Ben were given a sum of money. Alice needed 20 donuts and 3 cupcakes for her party. After buying, Alice passed the rest of the money to Ben.
(a) What was the least amount of money Alice spent? Give your answer in dollars. \\$[?]
(c) Ben spent \\(\\dfrac{4}{7}\\) of the rest of the money and had \\(\\dfrac{1}{3}\\) of the sum left. How many donuts and how many cupcakes did Ben buy? Donuts: [?], Cupcakes: [?]",
"answer0": "52",
"answer1": "48",
"answer2": "10",
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika 2024 P6 Class Test 2 Q5",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Shaun had \\$100. He spent \\$60 on a bag and 10% of his remaining money on a shirt. What percentage of his money did Shaun spend in total?",
"answer0": "30%",
"answer1": "36%",
"answer2": "64%",
"answer3": "70%",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika 2024 P6 Class Test 2 Q15a",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Aisha bought a pen and a notebook during a sale from a shop. She paid a total of \\$6 for both items after discount. The usual price of the notebook is \\$5. There is a 20% discount on all items. Find the price of the pen after the discount. [?]",
"answer0": "$2",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika 2024 P6 Prelim Q12",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Jane received \\$120 as her bursary award.
She gave \\$30 to her father.
What percentage of the bursary award money did Jane have left?",
"answer0": "25%",
"answer1": "30%",
"answer2": "75%",
"answer3": "90%",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika 2024 P6 Prelim Q15",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "A bakery had this promotion: 1 donut for \\$3. Buy 5 donuts and get another 1 donut free! Buy 8 donuts and get another 2 donuts free!
Pete left the bakery with 127 donuts using the given promotion.
What was the least amount of money he had to pay for 127 donuts?",
"answer0": "$303",
"answer1": "$306",
"answer2": "$375",
"answer3": "$381",
"correct_answer": 1,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika 2024 P6 Prelim Q22",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The line graph shows the cost for the amount of overseas mobile data used. (a) Ben used 1 unit of overseas mobile data during his trip. How much did Ben pay? Ans a) \\$[?]
(b) Ali paid \\$28. How many unit(s) of overseas mobile data did he use? Ans b) [?]",
"answer0": "12",
"answer1": "4",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika 2024 P6 Prelim Q25",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "In a shop, ribbon was sold at \\$3 per metre. Amy brought \\$30 to the shop.
How much more money does Amy need to buy 10.5 m of the ribbon?
\\$[?]",
"answer0": "1.50",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika 2024 P6 Prelim Q29",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Jane had \\$50 more than Ray at first. After Jane gave some of her money to Ray, Jane had \\$12 more than Ray.
How much money did Jane give to Ray?
\\$[?]",
"answer0": "19",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika 2024 P6 Prelim Paper 2 Q1",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Esther paid \\$46.60 for 10 similar pens and 12 similar files. The total price of a pen and a file was \\$4.
(a) What was the cost of 1 file? Ans a) \\$[?]
(b) What was the total cost of 15 pens and 12 files? Ans b) \\$[?]",
"answer0": "3.30",
"answer1": "50.10",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika 2024 P6 Prelim Paper 2 Q13",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mr Lee bought party food where the amounts spent on sausages : nuggets : crabsticks were in the ratio 15 : 7 : 6.
Mr Lee spent \\$63 more on buying the sausages than the crabsticks. How much did Mr Lee spend buying all the food?
\\$[?]",
"answer0": "196",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika 2025 P6 Prelim Q29",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The average price of a set of books is \\$12. When one more book costing \\$42 is added, the average becomes \\$18. How many books were there at first? [?]",
"answer0": "4",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika 2025 P6 Prelim P2 Q1",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mrs Chia bought an iron and a kettle for \\$279.30. The kettle cost \\$39.70 less than the iron. How much did the iron cost?
\\$ [?]",
"answer0": "159.50",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika 2025 P6 Prelim P2 Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "In January, Jeremy spent \\$30. In February he spent 30% less and saved \\$27.
(a) How much did Jeremy spend in February? \\$ [?]
(b) What was the percentage increase in the amount he saved in February? [?]%",
"answer0": "21",
"answer1": "50",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika 2025 P6 Prelim P2 Q16",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Wei Li used \\(\\dfrac{1}{4}\\) of her pocket money to buy 3 pens and 7 erasers. Each pen costs 3 times as much as an eraser. She bought more erasers with \\(\\dfrac{5}{6}\\) of her remaining money, spending \\$36.10 more on erasers.
(a) How many erasers can be bought with the money for 3 pens? [?]
(b) What is the cost of one eraser? \\$ [?]",
"answer0": "9",
"answer1": "0.95",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika 2025 P6 Prelim P2 Q17c",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The remaining handphones were sold at no discount. Altogether \\$32 330 was collected for all 100 handphones. What was the price of one handphone before the discount?
\\$ [?]",
"answer0": "424",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika School 2025 P6 CT2 Q1",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Jane received \\$200 prize money. She gave \\$80 to her sister. What percentage of the prize money did Jane give to her sister?",
"answer0": "20%",
"answer1": "40%",
"answer2": "60%",
"answer3": "80%",
"correct_answer": 1,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika School 2025 P6 CT2 Q5",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Jen saved \\$40 of her allowance and spent the rest. When she increased her savings by 10%, her spending decreased by 5%. How much was her allowance?",
"answer0": "$112",
"answer1": "$116",
"answer2": "$120",
"answer3": "$124",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika School 2025 P6 CT2 Q7",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A shop sold 240 tables for the year. 35% of the tables were sold in December. (a) How many tables were sold in December? [?]
(b) The price of 1 table before 9% GST was \\$700. Find the amount of GST for 1 table. \\$ [?]",
"answer0": "84",
"answer1": "63",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Red Swastika School 2025 P6 CT2 Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A shop had a sale and gave the same percentage discount on all types of bags. Bag A: sale price \\$32, usual price \\$40. Bag B: sale price \\$48, usual price unknown. (a) What was the percentage discount for Bag B? [?] %
(b) What was the usual price for Bag B? \\$ [?]",
"answer0": "20",
"answer1": "60",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "SCGS 2022 P6 Prelim P1 Q25",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A vase was sold at a 40% discount for \\$48. What was the original price of the vase before the discount? [?]",
"answer0": "80",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "SCGS 2022 P6 Prelim P2 Q10",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The cost of an adult ticket to a concert was \\$68.80. The cost of a child ticket was \\$32.80. The total amount of money collected from ticket sales was \\$28 100 for a capacity of 500 people. How many adults attended the concert? [?]",
"answer0": "325",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "SCGS 2022 P6 Prelim P2 Q13",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Fred, Gerald and Harry shared \\$123 altogether. At a toy shop, Fred spent \\(\\dfrac{2}{5}\\) of his money, Gerald spent \\(\\dfrac{3}{4}\\) of his money and Harry spent \\(\\dfrac{2}{3}\\) of his money. Fred and Gerald spent the same amount of money and Harry spent twice of what Fred spent. Find the amount of money Gerald had at first. [?]",
"answer0": "24",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "SCGS 2023 P6 Prelim Q12",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Adam Electronics Store gave a storewide discount of 20% during its annual sale. As a member of the store, Ming Hui is entitled to an additional 10% discount on the discounted price. He bought a camera. Usual Price: \\$2000.
How much did Ming Hui pay for the camera?",
"answer0": "$600",
"answer1": "$1400",
"answer2": "$1440",
"answer3": "$1600",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "SCGS 2023 P6 Prelim Q17",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Hui Ling paid \\$5 for 20 pencils. What was the cost of each pencil in cents? [?]",
"answer0": "25",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "SCGS 2023 P6 Prelim Q21",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A can of mushroom soup costs \\$3.20 and a bundle of 3 cans of mushroom soup costs \\$8. Diane wants to buy 20 cans of mushroom soup. What is the least amount of money she needs? \\$[?]",
"answer0": "54.40",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "SCGS 2023 P6 Prelim Q23",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Last month, Rachel saved \\$90 and spent the rest of her pocket money. If she increased her spendings by 40%, her savings would decrease by 20%. How much was her pocket money? \\$[?]",
"answer0": "135",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "SCGS 2023 P6 Prelim Q30",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Ben and Joel have \\$288 altogether. \\(\\dfrac{1}{4}\\) of Ben's money is \\$18 more than \\(\\dfrac{1}{5}\\) of Joel's money. How much does Joel have? \\$[?]",
"answer0": "120",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "SCGS 2023 P6 Prelim Paper 2 Q3",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mrs Lim bought a blender at 20% discount during a sale. She paid \\$90.72 including 8% GST. What is the original price of the blender? \\$[?]",
"answer0": "105",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "SCGS 2023 P6 Weighted Assessment 1 Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Melissa has \\$45 and Jing Zhi has \\$20. Express the amount of money Jing Zhi has as a fraction of the amount of money Melissa has.",
"answer0": "\\(\\dfrac{4}{9}\\)",
"answer1": "\\(\\dfrac{9}{4}\\)",
"answer2": "\\(\\dfrac{4}{5}\\)",
"answer3": "\\(\\dfrac{20}{25}\\)",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "SCGS 2023 P6 Weighted Assessment 1 Q12",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "6 pencils cost \\$10.80. Find the cost of 9 pencils. \\$[?]",
"answer0": "16.20",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "SCGS 2023 P6 Weighted Assessment 1 Q16",
"fix_types": [
"dollar_escape"
],
"type_id": 0,
"question": "At a shop, \\(\\dfrac{1}{4}\\) of the price of a pair of pants is equal to \\(\\dfrac{2}{5}\\) of the price of a dress. A pair of pants costs twice as much as a shirt. Mrs Choo spent \\$700 on 2 pairs of pants, 3 dresses and a shirt.
(a) What fraction of his money did he spend on dresses? Give your answer in the simplest form.
(b) How much did a dress cost?",
"answer0": null,
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "SCGS 2024 P6 Prelim Q7",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Wenling had \\$20. After buying 4 identical plates, she had \\$z left. Express the cost of 1 plate in terms of z.",
"answer0": "\\($(20 - 4z)\\)",
"answer1": "\\($\\left(20 - \\dfrac{z}{4}\\right)\\)",
"answer2": "\\($\\left(\\dfrac{20z}{4}\\right)\\)",
"answer3": "\\($\\left(\\dfrac{20 - z}{4}\\right)\\)",
"correct_answer": 3,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "SCGS 2024 P6 Prelim Q14",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "The price of a handbag was reduced from \\$150 to \\$120. What was the percentage decrease in price of the handbag?",
"answer0": "20%",
"answer1": "25%",
"answer2": "30%",
"answer3": "80%",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "SCGS 2024 P6 Prelim Q22",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The table shows the charges to post a parcel.
First 3 kg: \\$1 per kg
Each additional kg: \\$2 per kg
Mrs Tan posted 2 parcels. One weighs 2 kg and the other weighs 5 kg. How much did Mrs Tan pay? [?]",
"answer0": "9",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "SCGS 2024 P6 Prelim Q32",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Farah and Sue shared the cost of an oven. Farah paid \\$30 more than \\(\\dfrac{5}{8}\\) of the cost of the oven. Sue paid \\$90. How much did the oven cost? [?]",
"answer0": "320",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "SCGS 2024 P6 Prelim Q41",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Julia went shopping. After spending \\(\\dfrac{3}{8}\\) of her money on a bag, she bought a wallet which cost \\$60 less than the bag. Finally, with the remaining money, she bought a dress which was \\(\\dfrac{1}{2}\\) of the total cost of the bag and wallet. How much did Julia pay for the wallet? [?]",
"answer0": "210",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "SCGS 2025 P6 Prelim P2 Q7",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mdm Kamisah bought two dresses with a discount coupon. The first dress had a 10% discount, and the second dress had a 20% discount. She paid \\$259.42 which includes a GST of 9%. Both dresses had the same original price before discount. How much was the original price of each dress (excluding GST)?
\\$[?]",
"answer0": "140",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "SCGS 2025 P6 Prelim P2 Q9",
"fix_types": [
"missing_blank",
"dollar_escape"
],
"type_id": 2,
"question": "The table shows the prices of admission tickets to Mandai Wildlife Reserve: Child \\$3\\(y\\), Adult \\$60, Senior Citizen \\$(3\\(y\\) − 15), Family Package (2 adults and 2 children) \\$(4\\(y\\) + 100). A family group consisting of 2 adults, 2 children and 1 senior citizen buy their admission tickets using a family package. How much do they pay? Express your answer in terms of \\(y\\). [?] [?] [?] [?]",
"answer0": "$(7\\(y\\) + 85)",
"answer1": "$(7\\(y\\) + 100)",
"answer2": "$(4\\(y\\) + 85)",
"answer3": "$(3\\(y\\) + 85)",
"correct_answer": 0,
"note": "Inserted 4 [?] blank(s) at the answer point (was absent). Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "SCGS 2025 P6 Prelim P2 Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The table shows admission ticket prices: Child \\$3\\(y\\), Adult \\$60, Family Package (2 adults and 2 children) \\$(4\\(y\\) + 100). The zoo offers a 10% discount off the family package. If \\(y\\) = \\$18 and the family uses the family package, how much will a family consisting of 2 adults and 2 children pay after the discount?
\\$[?]",
"answer0": "154.80",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "SCGS 2025 P6 Prelim P2 Q14",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A company offered 120 soft toys at a discount of 20% during a 5-day sale. After the sale, 24 soft toys were left unsold. The usual price of one soft toy was \\$80. What was the amount of money collected during the 5-day sale?
\\$[?]",
"answer0": "6144",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "SCGS 2025 P6 Prelim P2 Q17",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "In a bookshop, for every 3 files sold, 1 pencil case was sold. The total amount collected was \\$1176. The amount collected from files was \\$147 more than the amount collected from pencil cases. Each pencil case was sold for \\$3 more than a file. How many pencil cases were sold?
[?]",
"answer0": "98",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2022 P6 Prelim P2Q1",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mika had \\$80. She wanted to buy 25 muffins at \\$7 each. How much money was she short of?
\\$ [?]",
"answer0": "95",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2022 P6 Prelim P2Q7",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "At a cafe, Mona bought 6 chicken wings. She also bought 3 fruit tarts at \\$1.50 each. Lauretta bought 9 chicken wings. Altogether, Mona spent \\$3.90 less than Lauretta. How much did 1 such chicken wing cost?
\\$ [?]",
"answer0": "2.80",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2022 P6 Prelim P2Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Papers of different masses were sold at Crafty Paper. The prices for the masses of paper are shown in the table.
Mass not exceeding 50 g: \\$2
Mass not exceeding 120 g: \\$4.50
Mass not exceeding 200 g: \\$8.00
For every additional 100 g or part thereof: \\$3.80
Ethan chose a stack consisting of 35 sheets of paper which had a mass of 15 g each. How much did he pay altogether?
\\$ [?]",
"answer0": "23.20",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2022 P6 Prelim P2Q12a",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The bar graph shows the number of each type of burgers sold at a fast food restaurant on a Friday. The prices are: Chicken \\$4.50, Vegetable \\$3.80, Fish \\$4.20, Beef \\$5.50.
The restaurant collected a total amount of \\$437 from the sale of vegetable burgers. How many vegetable burgers were sold? [?]",
"answer0": "115",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2022 P6 Prelim P2Q12b",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The bar graph shows the number of each type of burgers sold at a fast food restaurant on a Friday. The prices are: Chicken \\$4.50, Vegetable \\$3.80, Fish \\$4.20, Beef \\$5.50. From the graph, Chicken = 150 sold and Fish = 85 sold.
What was the difference in the amount collected from the most popular burger sold and the least popular burger sold?
\\$ [?]",
"answer0": "318",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2022 P6 Prelim P2Q14",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Membership Promotion: Buy first air fryer at 15% discount, buy second air fryer at 30% discount. For non-members, enjoy a 10% discount for each air fryer.
Mrs Wong paid \\$341 for two air fryers by using the membership promotion. How much would she have paid for 1 air fryer if she was a non-member?
\\$ [?]",
"answer0": "180",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2022 P6 Prelim P2Q15a",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Fredrick had some coupons to sell at a funfair. Each coupon cost \\$5. On the first day, he sold 264 coupons. On the second day, he sold \\(\\dfrac{1}{5}\\) of the remaining coupons. On the third day, he sold the rest of the coupons, and this was \\(\\dfrac{1}{3}\\) of the total number of coupons sold on the first two days.
(a) What fraction of the total number of coupons did Fredrick sell on the first day?",
"answer0": "\\(\\dfrac{11}{16}\\)",
"answer1": "\\(\\dfrac{1}{5}\\)",
"answer2": "\\(\\dfrac{1}{3}\\)",
"answer3": "\\(\\dfrac{5}{16}\\)",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2022 P6 Prelim P2Q15b",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Fredrick had some coupons to sell at a funfair. Each coupon cost \\$5. On the first day, he sold 264 coupons, which was \\(\\dfrac{11}{16}\\) of the total. On the second day, he sold \\(\\dfrac{1}{5}\\) of the remaining coupons. On the third day, he sold the rest. What was the total amount of money Fredrick collected from the sale of coupons over the three days?
\\$ [?]",
"answer0": "1920",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2023 P6 Prelim Q3",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Abraham invested \\$18 000 in an investment fund. The bank paid 4% interest at the end of each year. How much interest did he earn at the end of 1 year?",
"answer0": "$18 720",
"answer1": "$17 280",
"answer2": "$7200",
"answer3": "$720",
"correct_answer": 3,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2023 P6 Prelim Q5",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Figera has two 10¢ coins, six 20¢ coins and three 50¢ coins. What is the least number of coins that she can use to make \\$2?",
"answer0": "6",
"answer1": "5",
"answer2": "3",
"answer3": "4",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2023 P6 Prelim Q22",
"fix_types": [
"dollar_escape"
],
"type_id": 0,
"question": "A bowl cost \\$r and a pot cost \\$14r. Jacie bought 7 such bowls and 1 pot. She had \\$30 left. How much money did she have at first? Leave your answer in terms of r.",
"answer0": null,
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2023 P6 Prelim Paper 2 Q6a",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The table shows the prices of 5 items: Cap \\$4.00, Towel \\$0.90, Haversack \\$8.90, Water bottle \\$17.50, Sleeping bag \\$16.50. Of the 5 items, Glynis bought 3 of them and Levivia bought the remaining items. The items each of them bought were different. Glynis spent \\$11 more than Levivia. How much money did Glynis spend on the 3 items? [?]",
"answer0": "29.40",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2023 P6 Prelim Paper 2 Q6b",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "The table shows the prices of 5 items: Cap \\$4.00, Towel \\$0.90, Haversack \\$8.90, Water bottle \\$17.50, Sleeping bag \\$16.50. Of the 5 items, Glynis bought 3 (spending \\$29.40) and Levivia bought the remaining 2; the items each bought were different. What was the cheapest item each of them bought?",
"answer0": "Glynis: Cap; Levivia: Towel",
"answer1": "Glynis: Towel; Levivia: Cap",
"answer2": "Glynis: Haversack; Levivia: Cap",
"answer3": "Glynis: Cap; Levivia: Haversack",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2023 P6 Prelim Paper 2 Q12b",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "On Saturday, Mr Zusin sold five different types of items (66 of each prepared). He sold the pens at \\$1.95 each. From the bar graph, 48 pens were sold. How much money did he collect from the pens? [?]",
"answer0": "93.60",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2023 P6 Prelim Paper 2 Q12c",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "On Saturday, Mr Zusin prepared 66 of each of five items and sold some (bar graph). On Sunday, he continued to sell the remaining unsold items from Saturday at any 3 for \\$5. He sold all the items. How much money did he collect on Sunday? [?]",
"answer0": "130",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2023 P6 Prelim Paper 2 Q13a",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The admission tickets for children to watch a magic show were fixed on all days of a week. On Thursday, there were 80 boys and 60 girls at the show. On Friday, the number of boys increased by 30% and the number of girls decreased by 15%. Altogether, \\$9440 was collected from the sale of admission tickets over the two days. What was the price of each admission ticket? [?]",
"answer0": "32",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2023 P6 Prelim Paper 2 Q15a",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Omar spent \\$162 more than \\(\\dfrac{1}{7}\\) of his monthly salary on transport. He spent \\$40 less than \\(\\dfrac{1}{6}\\) of his remaining salary on groceries. He spent \\$968 on groceries. He saved the rest of his salary. How much of his monthly salary did Omar save? [?]",
"answer0": "5080",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2023 P6 Prelim Paper 2 Q15b",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Omar spent \\$162 more than \\(\\dfrac{1}{7}\\) of his monthly salary on transport. He spent \\$40 less than \\(\\dfrac{1}{6}\\) of his remaining salary on groceries (\\$968). He saved the rest. What was Omar's monthly salary? [?]",
"answer0": "7245",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2023 P6 Prelim Paper 2 Q15c",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Omar's monthly salary was \\$7245. Find Omar's total salary in \\(1\\dfrac{1}{4}\\) years. [?]",
"answer0": "108675",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2023 P6 Weighted Assessment 1 Q1",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mr Lee has \\$6000 in his bank account. The bank gives 0.3% interest at the end of each year. He does not withdraw any of his savings. What is the total amount of money he will have in the bank at the end of one year?
Ans: \\$[?]",
"answer0": "6018",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2023 P6 Weighted Assessment 1 Q3",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The graph shows the number of tickets sold for a basketball match from Monday to Friday.
(a) What was the total number of tickets sold from Monday to Wednesday? [?]
(b) The usual price of a ticket was \\$70. On Friday, tickets were sold at a 5% discount. How much money was collected from the sale of tickets on Friday? \\$[?]",
"answer0": "220",
"answer1": "7448",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2023 P6 Weighted Assessment 1 Q6",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "At a furniture shop, office chairs are sold at the usual price of \\$106 each before GST. During a sale in October, the shop offered a 25% discount on the office chair.
(a) What was the discount given for each office chair? \\$[?]
(b) Karen had \\$550. What was the greatest number of chairs she could buy during the sale in October? [?]",
"answer0": "26.50",
"answer1": "6",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2023 P6 Weighted Assessment 1 Q7",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Xavier spent \\(\\dfrac{2}{7}\\) of his money on a laptop and a refrigerator. The refrigerator cost 2 times as much as the laptop. He spent \\(\\dfrac{1}{3}\\) of his remaining money on a vacuum cleaner. The laptop cost \\$1320 less than the vacuum cleaner. What fraction of Xavier's money was spent on the laptop?",
"answer0": "\\(\\dfrac{2}{21}\\)",
"answer1": "\\(\\dfrac{4}{21}\\)",
"answer2": "\\(\\dfrac{1}{7}\\)",
"answer3": "\\(\\dfrac{2}{7}\\)",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2023 P6 Weighted Assessment 1 Q7",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Xavier spent \\(\\dfrac{2}{7}\\) of his money on a laptop and a refrigerator. The refrigerator cost 2 times as much as the laptop. He spent \\(\\dfrac{1}{3}\\) of his remaining money on a vacuum cleaner. The laptop cost \\$1320 less than the vacuum cleaner. How much money did Xavier have at first?
Ans: \\$[?]",
"answer0": "9240",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2023 P6 Weighted Assessment 1 Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Devi had 180 butter buns and two times as many kaya buns in the morning. In the afternoon, she baked some butter buns and sold some kaya buns. The number of kaya buns sold was 5 times of the number of butter buns baked. She had the same number of butter buns and kaya buns in the end.
(a) How many butter buns did Devi bake in the afternoon? [?]
(b) How many buns did Devi have altogether in the end? [?]
(c) The remaining buns were sold at \\$2.20 each and 1 bun was given free for every 3 buns bought. Mr Poh wanted to get 13 buns. How much money did he need to pay in total? \\$[?]",
"answer0": "30",
"answer1": "420",
"answer2": "22",
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2023 P6 Weighted Assessment 2 Q4",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Jia Hui's salary was \\(\\dfrac{4}{7}\\) of Aishah's salary. Jia Hui spent \\$729. Aishah did not spend any money. In the end, the amount of money Jia Hui had left to the amount of money Aishah had was 2 : 5. How much was Jia Hui's salary? \\$[?]",
"answer0": "2430",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2023 P6 Weighted Assessment 2 Q5",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Shanti wanted to buy a sofa set. The sofa set in Shop A was sold at a 5% discount and the similar sofa set in Shop B was sold at a 20% discount. Both shops sold the sofa set at the same price before discount.
To buy the sofa set in Shop A, Shanti would need \\$150 more than what she had. Shanti bought the sofa set in Shop B and had \\$300 left.
(a) What was the price of the sofa set before discount? \\$[?]
(b) How much money did Shanti have at first? \\$[?]",
"answer0": "3000",
"answer1": "2700",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2023 P6 Weighted Assessment 2 Q9 (a)",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Mr Ho had a box of red, blue and green pens. \\(\\dfrac{1}{5}\\) of the pens were red, \\(\\dfrac{1}{4}\\) of the pens were blue and the rest were green pens. The cost of each pen is shown in the table. He sold all the pens and collected \\$1141.
Red: \\$1.20 Blue: \\$1.60 Green: \\$1.80
What fraction of the pens were green?",
"answer0": "\\(\\dfrac{11}{20}\\)",
"answer1": "\\(\\dfrac{9}{20}\\)",
"answer2": "\\(\\dfrac{2}{9}\\)",
"answer3": "\\(\\dfrac{1}{2}\\)",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2023 P6 Weighted Assessment 2 Q9 (b)",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mr Ho had a box of red, blue and green pens. \\(\\dfrac{1}{5}\\) of the pens were red, \\(\\dfrac{1}{4}\\) of the pens were blue and the rest were green pens. Each red pen costs \\$1.20, each blue pen costs \\$1.60 and each green pen costs \\$1.80. He sold all the pens and collected \\$1141. How many pens did Mr Ho sell altogether? [?]",
"answer0": "700",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2023 P6 Weighted Assessment 2 Q9 (c)",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mr Ho had a box of red, blue and green pens. \\(\\dfrac{1}{5}\\) of the pens were red, \\(\\dfrac{1}{4}\\) of the pens were blue and the rest were green pens. Each red pen costs \\$1.20, each blue pen costs \\$1.60 and each green pen costs \\$1.80. Daphne bought 2 red pens and 4 green pens with \\(\\dfrac{2}{7}\\) of her pocket money. She bought blue pens with all her remaining pocket money. How many blue pens did Daphne buy? [?]",
"answer0": "15",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2025 P6 Prelim P1 Q14",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Freddy had \\$250 and Karina had \\$100 at first. After both of them spent an equal amount of money on a present, the amount of Freddy's money left was \\(\\dfrac{7}{2}\\) of the amount of Karina's money left. How much money did Freddy have left?",
"answer0": "$220",
"answer1": "$210",
"answer2": "$80",
"answer3": "$60",
"correct_answer": 1,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2025 P6 Prelim P2 Q4",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Benson had three fewer \\$1 coins than 20¢ coins. He used all his \\$1 coins and two 20¢ coins. The total value of the 20¢ coins left was \\$2. How much money did Benson use? \\$[?]",
"answer0": "9.40",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2025 P6 Prelim P2 Q6",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "In a shop, cups are sold in sets of 8 for \\$60 and plates are sold in sets of 12 for \\$75. Lim Soon bought the same number of cups and plates. He spent \\$660 altogether. How many cups did Lim Soon buy? [?]",
"answer0": "48",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2025 P6 Prelim P2 Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The table shows an electrical company's charges (before GST): first 180 units at \\$0.25 per unit, any usage above 180 units at \\$0.35 per unit.
(a) In January, the Wang family used 260 units. How much did they pay after including a 9% GST? \\$[?]
(b) In February, the charge before GST was \\$60.05. How many units did the Wang family use in February? [?]",
"answer0": "79.57",
"answer1": "223",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2025 P6 Prelim P2 Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A file cost \\$3.10 more than a pen. Hakim bought twice as many pens as files. He spent a total of \\$92.70. He spent \\$6.30 more on the files than on the pens. Find the total cost of a pen and a file. \\$[?]",
"answer0": "49.50",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2025 P6 Prelim P2 Q14",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A brochure reads: \"Buy first book at 10% discount. Buy second book at [smudged]% discount. Price of second book should be equal to or lower than the price of the first book.\" Suzy bought two books at the sale.
(a) Suzy paid \\$21.05 for the two books. She paid \\$1.45 less for the second book than the first book. How much did she pay for the first book? \\$[?]
(b) Find the original price of the first book. \\$[?]",
"answer0": "11.25",
"answer1": "12.50",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2025 P6 Prelim P2 Q16",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Paul and Zalim went out together with a total of \\$140.20. Zalim spent 4 times as much money as Paul. The amount of money Paul had left was \\$12 more than \\(\\dfrac{1}{2}\\) of what Zalim spent. The amount of money Zalim had left was \\(\\dfrac{1}{5}\\) of what Paul had left.
(a) How much money did Paul spend? \\$[?]
(b) How much money did Zalim have at first? \\$[?]",
"answer0": "17",
"answer1": "77.20",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "St Nicholas 2025 P6 Prelim P2 Q17",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A footpath of length 25.2 m is tiled using identical rectangular tiles and identical circular tiles, following the pattern shown. Each tile is in contact with those next to it. The width of the footpath is 84 cm. (Take π = \\(\\dfrac{22}{7}\\))
(a) How many rectangular and circular tiles were used to tile the entire footpath altogether? [?]
(b) Find the area of the footpath not covered by tiles. [?] cm²
(c) Replacing all tiles costs \\$3.20 per circular tile and \\$1.80 per rectangular tile. What is the total cost to replace all the tiles on the footpath? \\$[?]",
"answer0": "140",
"answer1": "15120",
"answer2": "560",
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "CHIJ St Nicholas Girls' 2025 P6 WA1 Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "At a shop, rolls of ribbon were sold at \\$7 each. For every 3 rolls of ribbon bought, customers were given one roll free. Last Friday, some customers bought either 1 roll or 3 rolls of ribbon. The shopkeeper collected a total amount of \\$1925 from the sale of ribbons and gave away 65 rolls free. How many customers bought only one roll of ribbon?
[?]",
"answer0": "80",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "CHIJ St Nicholas Girls' 2025 P6 WA1 Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "At a shop, rolls of ribbon were sold at \\$7 each. For every 3 rolls of ribbon bought, customers were given one roll free. Lenice used pieces of ribbons, each of length 110 cm, to tie 25 parcels. Ribbon was sold in rolls of 300 cm each. What was the least amount of money that Lenice paid for the rolls of ribbon?
\\$[?]",
"answer0": "70",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "CHIJ St Nicholas Girls' School 2025 P6 Weighted Assessment 2 Q2",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Ben spent \\$80 on Saturday. He spent \\$84 on Sunday. What was the percentage increase in his spending from Saturday to Sunday?
[?]",
"answer0": "5",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "CHIJ St Nicholas Girls' School 2025 P6 Weighted Assessment 2 Q5",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Great Singapore Sale! Buy first refrigerator at 20% discount. Buy second refrigerator at 40% discount. Sue paid \\$1120 for two refrigerators during the Great Singapore Sale. How much would she have had to pay for the two refrigerators when there was no sale?
[?]",
"answer0": "1600",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "CHIJ St Nicholas Girls' School 2025 P6 Weighted Assessment 2 Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "At first, Mr Singh had some eggs. He sold \\(\\dfrac{4}{9}\\) of his eggs and gave away 36 eggs. He had \\(\\dfrac{1}{2}\\) of the eggs left and he put them on 30 trays. Some trays had 10 eggs while the rest had 12 eggs.
(a) How many eggs were put on the 30 trays? [?]
(b) How many trays had 10 eggs? [?]
(c) Special Offer: Buy 12 eggs, get 2 more eggs free. Mrs Toh took home 56 eggs with the special offer. She paid \\$2.80 less with the special offer. What was the price of 12 eggs without the special offer? [?]",
"answer0": "324",
"answer1": "18",
"answer2": "4.20",
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Temasek 2023 P6 Prelim Q3",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "The table shows the prices of curry puffs sold at four different shops.
Shop A: \\$0.80 each
Shop B: \\$10 for 8
Shop C: \\$3.60 for 6
Shop D: \\$8.40 for 10
Which shop sells the cheapest curry puffs?",
"answer0": "Shop A",
"answer1": "Shop B",
"answer2": "Shop C",
"answer3": "Shop D",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Temasek 2023 P6 Prelim Q29",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "At a shop, the price of 5 identical hats and 14 identical belts is the same as the price of 1 hat and 26 belts. Each hat costs \\$24 more than each belt. Find the cost of a hat. [?]",
"answer0": "36",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Temasek 2023 P6 Prelim P2 Q2",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mrs Tan bought 24 identical packets of nuts for \\$30. After the price of each packet of nuts had increased, she could only buy 20 packets with the same amount of money. What was the percentage increase in the price of each packet of nuts? [?] %",
"answer0": "20",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Temasek 2023 P6 Prelim P2 Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Elyse spent \\(\\dfrac{2}{5}\\) of her money and an additional \\$50 on a pair of shoes. She spent \\(\\dfrac{3}{5}\\) of the remainder and an additional \\$86 on a handbag. She spent half of the money that was left on food for \\$25. How much money did she have at first? [?]",
"answer0": "650",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Temasek 2023 P6 Prelim P2 Q14",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "At a concert, 80% of the people were adults. 75% of the children at the concert were boys. There were 130 fewer boys than adults.
(a) What percentage of the people at the concert were boys? [?] %
(b) The price of a child's ticket was 40% of an adult ticket. A total of \\$2640 was collected at the concert. How much did an adult ticket cost? [?]",
"answer0": "15",
"answer1": "15",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2022 P6 Prelim Q17",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Debbie bought a calculator and a printer at Great Store. She was given a 10% discount for both items. The usual prices are: calculator \\$25, printer \\$95. How much did she pay for both items?
\\$ [?]",
"answer0": "108",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2022 P6 Prelim Q25a",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The line graph shows the amount of money Jackie spent from January to May.
(a) Find the increase in the amount of money spent between January and February.
\\$ [?]",
"answer0": "250",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2022 P6 Prelim Q25b",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "The line graph shows the amount of money Jackie spent from January to May. The values are: January \\$550, February \\$800, March \\$330, April \\$610, May \\$830.
Between which 2 months was there the greatest increase in the amount of money Jackie spent?",
"answer0": "Between March and April",
"answer1": "Between January and February",
"answer2": "Between April and May",
"answer3": "Between February and March",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2022 P6 Prelim P2Q14a",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The table shows information on three brands of eggs.
Brand X: \\$5.60 per carton, 240 cartons sold
Brand Y: \\$3.20 per carton, 315 cartons sold
Brand Z: \\$2.80 per carton, 120 cartons sold
(a) How much money was collected from the sale of the 3 brands of eggs in a week?
\\$ [?]",
"answer0": "2688",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2023 P6 Prelim Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Gavin buys $n$ notebooks at \\$4 each. He gave the cashier \\$30. How much change did he receive?",
"answer0": "$(26 - n)$",
"answer1": "$(26 + n)$",
"answer2": "$(30 - 4n)$",
"answer3": "$(30 + 4n)$",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2023 P6 Prelim Q23",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Sharon took a taxi from her office to home. Her taxi fare was based on the charges shown.
First 1 km: \\$3.40
Every additional 400 m or less: \\$0.25
Every 45 seconds of waiting time or less: \\$0.25
The taxi stopped at a traffic light for 1 min 30 s and travelled a total distance of 5 km to reach Sharon's home. How much was her taxi fare?
\\$[?]",
"answer0": "6.40",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2023 P6 Prelim Q24",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "At the market, 100 g of crabs cost \\$2.40. How much does 4 kg of crabs cost?
\\$[?]",
"answer0": "96",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2023 P6 Weighted Assessment 2 Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Ben received \\$120 a month. He spends \\$80 and saves the remainder. What fraction of his expenditure is his savings?",
"answer0": "\\(\\dfrac{2}{3}\\)",
"answer1": "\\(\\dfrac{1}{2}\\)",
"answer2": "\\(\\dfrac{2}{5}\\)",
"answer3": "\\(\\dfrac{1}{3}\\)",
"correct_answer": 1,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2023 P6 Weighted Assessment 2 Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "How much will Mary have to pay for 4 slices of cake during the sale?
SALE!! 20% off from the 3rd slice of cake onwards!
Usual price: \\$3.50 per slice",
"answer0": "$14",
"answer1": "$12.60",
"answer2": "$11.90",
"answer3": "$8.40",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2023 P6 Weighted Assessment 2 Q26",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Keith parked his car for 4 hours and 15 minutes. How much did he have to pay for carpark charges?
Rate | Parking fees
First ½ hour | \\$3.00
Each subsequent 1 hour or part thereof | \\$1.50
Ans: \\$ [?]",
"answer0": "9",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2023 P6 Weighted Assessment 2 Q28",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Kumar bought a watch at a discount of 20%. Its usual price was \\$250 before GST. Find the 8% GST of the discounted price. Ans: \\$ [?]",
"answer0": "16",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2023 P6 Weighted Assessment 2 Q29",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Paula had 12 bookmarks. She sold 3 of them at \\$5\\(f\\) and the rest at \\$\\(f\\) each. How much did she collect in terms of \\(f\\)?",
"answer0": "$14f",
"answer1": "$24f",
"answer2": "$9f",
"answer3": "$60f",
"correct_answer": 0,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2023 P6 Weighted Assessment 2 P2 Q6",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Shawn had \\$90 more than Abigail. If Abigail gave Shawn \\$15, Shawn would have thrice as much money as Abigail. How much money did Shawn have at first? Ans: \\$ [?]",
"answer0": "165",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2023 P6 Weighted Assessment 2 P2 Q17",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "A coin box contained 20-cent coins and 50-cent coins in the ratio 3 : 2. When ten 20-cent coins were taken out, exchanged for 50-cent coins and the money returned into the box, the ratio of the number of 20-cent coins to the number of 50-cent coins was 7 : 10. Find the sum of money in the coin box. Ans: \\$ [?]",
"answer0": "12.80",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2024 P6 Practice P1 Q9",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "Mr Lim had \\$50. After buying 4 identical ties, he had \\$x left. How much did Mr Lim pay for each tie?",
"answer0": "\\($(50 - 4x)\\)",
"answer1": "\\($(50 - \\dfrac{x}{4})\\)",
"answer2": "\\($(\\dfrac{50 - x}{4})\\)",
"answer3": "\\($(\\dfrac{50x}{4})\\)",
"correct_answer": 2,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2024 P6 Practice P1 Q19",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Devi has \\$10. She spends 95¢ on a bun and 60¢ on a drink. How much money does Devi have left?
Ans: \\$ [?]",
"answer0": "8.45",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2024 P6 Practice P1 Q26",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Sale price \\$48. Usual Price: \\$60. What is the percentage discount for the bag shown?
Ans: [?]%",
"answer0": "20",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2024 P6 Practice P2 Q4",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Shanti took a taxi from home to her office. Her taxi fare was based on the charges shown: First 1 km \\$3.20; Every additional 400 m or less \\$0.22; Every 45 seconds of waiting or less \\$0.22. The taxi stopped once at a traffic light for 1 min and travelled a total distance of 5.8 km to reach Shanti's office. How much was her taxi fare?
Ans: \\$ [?]",
"answer0": "6.28",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2024 P6 Practice P2 Q14",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Andy saved a total of \\$108 in coins in his coin box. \\(\\dfrac{2}{3}\\) of all the coins saved were one-dollar coins. There were 3 times as many one-dollar coins as fifty-cent coins. The remaining coins were twenty-cent coins. How many coins did Andy save in his coin box altogether?
Ans: [?]",
"answer0": "135",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2024 P6 Prelim Q13",
"fix_types": [
"dollar_escape"
],
"type_id": 1,
"question": "A pen costs \\$5 more than a pencil. The cost of a pencil is \\$p. Find the cost of 10 pencils and 5 pens in terms of p.",
"answer0": "\\($(5p + 50)\\)",
"answer1": "\\($(10p + 25)\\)",
"answer2": "\\($(10p + 75)\\)",
"answer3": "\\($(15p + 25)\\)",
"correct_answer": 3,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2024 P6 Prelim Q25",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "An offer states: \\$1 for 1 bun; \\$4 for 5 buns + 1 free. Mrs Law needed 50 buns. How much would she have to pay? [?]",
"answer0": "34",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2024 P6 Prelim Q29",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The usual price of a bicycle is \\$400. During a sale, there is a discount of 25% for the bicycle. Find the selling price of the bicycle inclusive of 9% GST. [?]",
"answer0": "327",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2024 P6 Prelim Q30",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Charlie had the same number of two-dollar notes and ten-dollar notes. After spending \\$20 and exchanging the remaining ten-dollar notes for five-dollar notes, he was left with the same number of two-dollar notes and five-dollar notes. How much money did Charlie have at first? [?]",
"answer0": "48",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2024 P6 Prelim Q37",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The table shows the fines for overdue items from a library.
Each book: \\$0.15 per day (1st week), \\$0.30 per day (2nd week onwards)
Each magazine: \\$0.10 per day (1st week), \\$0.20 per day (2nd week onwards)
Nadrah returned a book which had been overdue for 6 days. How much did she pay for the overdue fines? [?]",
"answer0": "0.90",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2024 P6 Prelim Q38",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The table shows the fines for overdue items from a library.
Each book: \\$0.15 per day (1st week), \\$0.30 per day (2nd week onwards)
Each magazine: \\$0.10 per day (1st week), \\$0.20 per day (2nd week onwards)
Sue Ann paid \\$3.45 for an overdue item which was a book. For how many days was the item overdue? [?]",
"answer0": "15",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2025 P6 Prelim P1 Q28",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "After a 10% discount, the price of an admission ticket to the amusement park is \\$45. Children are given a further discount of \\$3. What is the percentage discount for one child ticket? [?]%",
"answer0": "16",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2025 P6 Prelim P2 Q11",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "The line graph shows the volume of water the Tan family used from January to June (Jan 35, Feb 48, Mar 28, Apr 40, May 50, Jun 24, in m³).
(a) What was the percentage increase in the water used from April to May? [?]%
(b) Charges: first 40 m³ at \\$3.50 per m³, every additional m³ at \\$4.50 per m³. How much did the Tan family pay for their water bill in May? \\$[?]",
"answer0": "25",
"answer1": "185",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "Tao Nan 2025 P6 Prelim P2 Q16",
"fix_types": [
"dollar_escape"
],
"type_id": 2,
"question": "Mr Abdul received some Majulah Singapura vouchers in denominations of \\$2, \\$5 and \\$10. There were as many \\$10 vouchers as \\$5 vouchers. The ratio of the number of \\$2 vouchers to the number of \\$10 vouchers was 3 : 2. The value of all the vouchers was \\$1260.
(a) What was the total value of the \\$2 vouchers he received? \\$[?]
(b) Later he had 4 \\$2 vouchers, 2 \\$5 vouchers and 1 \\$10 voucher left. He bought food from 3 stalls (Stall A \\$8, Stall B \\$9, Stall C \\$11). Vouchers used at each stall cannot exceed the cost of the food. What was the least amount he could have paid in cash? \\$[?]",
"answer0": "210",
"answer1": "2",
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Escaped currency $ to \\$ to stop two $ forming a math span; genuine $...$ math left intact."
},
{
"source": "ACS 2022 P6 Prelim Q21",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Express y + 11 + 7y − 9 − 3y in the simplest form.",
"answer0": "5y + 2",
"answer1": "5y − 2",
"answer2": "11y + 2",
"answer3": "5y + 20",
"correct_answer": 0,
"note": "Algebraic answer (5y + 2) cannot be typed on a numpad FIB; converted part (a) to MCQ. Part (b) value 25.6 is numeric and can stay a separate FIB; this record covers the algebra blank only."
},
{
"source": "ACS 2022 P6 Prelim Paper2 Q6",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Gerald, Leon and Ali went for a jog. Gerald ran y km. Leon ran 3 km more than Gerald. Ali ran twice as far as Leon. Express the total distance the three boys ran in terms of y.",
"answer0": "4y + 9",
"answer1": "4y + 3",
"answer2": "3y + 9",
"answer3": "4y + 6",
"correct_answer": 0,
"note": "Algebra answer 4y + 9 -> MCQ. Part (b) value 11 is numeric (separate FIB)."
},
{
"source": "ACS Primary 2024 P6 Prelim P2 Q10",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Mdm Siti bought \\(4p\\) kg of beef at \\$7 per kg and \\(6p\\) kg of chicken at \\$8 per kg for Hari Raya. Express the total amount she spent in terms of \\(p\\).",
"answer0": "76p",
"answer1": "48p",
"answer2": "56p",
"answer3": "28p",
"correct_answer": 0,
"note": "Algebra answer 76p -> MCQ. Part (b) value 152 is numeric (separate FIB). Currency $ escaped."
},
{
"source": "Catholic High 2025 P6 Prelim P2 Q5",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "A shop sells only three types of toys. The number of each type sold is: Robot = p, Car = 2p + 8, Doll = 45. Find the total number of toys sold by the shop in terms of p.",
"answer0": "3p + 53",
"answer1": "3p + 45",
"answer2": "2p + 53",
"answer3": "3p + 8",
"correct_answer": 0,
"note": "Algebra answer 3p + 53 -> MCQ. Part (b) value 29 is numeric (separate FIB)."
},
{
"source": "Henry Park 2022 P6 Prelim Paper 2 Q9",
"fix_types": [
"fraction_answer_mcq",
"missing_blank"
],
"type_id": 1,
"question": "The table shows the number of plastic bottles collected by four classes for recycling. 6A collected 11, 6B collected 8m, 6C collected 40 − 3m, 6D collected an unknown amount. Find the total number of plastic bottles 6A, 6B and 6C collected. Express your answer in terms of m in the simplest form.",
"answer0": "51 + 5m",
"answer1": "51 + 11m",
"answer2": "91 + 5m",
"answer3": "51 − 5m",
"correct_answer": 0,
"note": "Algebra answer 51 + 5m -> MCQ (original had no [?]). Part (b) value 93 is numeric (separate FIB)."
},
{
"source": "MGS 2024 P6 Prelim Q21b",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Simplify the expression 9\\(w\\) + 10 − 7\\(w\\) + 3.",
"answer0": "2w + 13",
"answer1": "2w + 7",
"answer2": "16w + 13",
"answer3": "2w − 13",
"correct_answer": 0,
"note": "Algebra answer 2w + 13 -> MCQ."
},
{
"source": "Maris Stella 2023 P6 Prelim P2 Q6",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Mr Lee had a piece of wire 26y cm long. He used the wire to form a rectangle with length 2y cm and breadth 20 cm. Express the length of the remaining wire in terms of y.",
"answer0": "(22y − 40) cm",
"answer1": "(24y − 40) cm",
"answer2": "(22y − 20) cm",
"answer3": "(22y + 40) cm",
"correct_answer": 0,
"note": "Algebra answer (22y − 40) -> MCQ. Part (b) value 12 is numeric (separate FIB)."
},
{
"source": "Pei Chun 2023 P6 Prelim Q22",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Simplify the expression 25 + 9k + 8 − 4k.",
"answer0": "5k + 33",
"answer1": "5k + 17",
"answer2": "13k + 33",
"answer3": "5k − 33",
"correct_answer": 0,
"note": "Algebra answer 5k + 33 -> MCQ."
},
{
"source": "Red Swastika 2022 P6 Prelim P1 Q30",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Mrs Wong placed an equal number of beads into 24 boxes. She discovered 4 boxes were damaged and redistributed those beads into the remaining 20 boxes, so the number of beads in each remaining box increased by \\(n\\). How many beads were there in each box at first? Give your answer in terms of \\(n\\).",
"answer0": "5n",
"answer1": "4n",
"answer2": "6n",
"answer3": "20n",
"correct_answer": 0,
"note": "Algebra answer 5n -> MCQ."
},
{
"source": "Red Swastika 2022 P6 Prelim P2 Q4",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Mr Gan bought \\(w\\) bales of cloth to prepare banners. Each banner is 240 cm long and none are joined. Each bale is 11 m long. What is the maximum number of banners Mr Gan could prepare? Give your answer in terms of \\(w\\).",
"answer0": "4w",
"answer1": "5w",
"answer2": "4.4w",
"answer3": "3w",
"correct_answer": 0,
"note": "Algebra answer 4w -> MCQ."
},
{
"source": "Red Swastika 2024 P6 Prelim Q24",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "The figure is made up of two rectangles ABEF and BCDE. BC = y cm, CD = 4 cm and the area of ABEF is 3y cm². Find the perimeter of BCDE in terms of y.",
"answer0": "2y + 8",
"answer1": "y + 4",
"answer2": "2y + 4",
"answer3": "4y + 8",
"correct_answer": 0,
"note": "Algebra answer 2y + 8 -> MCQ. Part (b) value 6 is numeric (separate FIB)."
},
{
"source": "SCGS 2022 P6 Prelim P2 Q6",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Helen is \\((y + 8)\\) years old now. She is 3 years older than Bonny. What will be their total age in 2 years' time, in terms of \\(y\\)?",
"answer0": "2y + 17",
"answer1": "2y + 13",
"answer2": "y + 17",
"answer3": "2y + 21",
"correct_answer": 0,
"note": "Algebra answer 2y + 17 -> MCQ. Part (b) value 27 is numeric (separate FIB)."
},
{
"source": "St Nicholas 2025 P6 Prelim P2 Q8",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "The table shows the number of curry puffs sold at a shop last week: Monday to Friday 2w per day, Saturday w + 40, Sunday 9w − 5. How many curry puffs were sold altogether last week? Express your answer in terms of w in the simplest form.",
"answer0": "20w + 35",
"answer1": "12w + 35",
"answer2": "20w + 45",
"answer3": "20w − 35",
"correct_answer": 0,
"note": "Algebra answer 20w + 35 -> MCQ."
},
{
"source": "Tao Nan 2023 P6 Prelim Q17",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Simplify the following expression.
7m + 5 − 3m − 4",
"answer0": "4m + 1",
"answer1": "4m + 9",
"answer2": "10m + 1",
"answer3": "4m − 1",
"correct_answer": 0,
"note": "Algebra answer 4m + 1 -> MCQ; removed the $...=$ math wrapper and the [?] so the stem just asks to simplify."
},
{
"source": "Tao Nan 2025 P6 Prelim P2 Q4",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Siti had 35 marbles and Ted had more marbles than her. After giving Siti m marbles, Ted had 20 more marbles than Siti. How many marbles did Ted have at first? Give your answer in terms of m in the simplest form.",
"answer0": "2m + 55",
"answer1": "m + 55",
"answer2": "2m + 15",
"answer3": "2m − 55",
"correct_answer": 0,
"note": "Algebra answer 2m + 55 -> MCQ."
},
{
"source": "St Nicholas 2022 P6 Prelim P2Q8a",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Brantley is 5k years old now. In 8 years' time, Brantley will be 4 times as old as Hailey. Find Hailey's age in 8 years' time in terms of k.",
"answer0": "\\(\\dfrac{5k+8}{4}\\)",
"answer1": "\\(\\dfrac{5k-8}{4}\\)",
"answer2": "\\(\\dfrac{5k+8}{8}\\)",
"answer3": "\\(\\dfrac{4}{5k+8}\\)",
"correct_answer": 0,
"note": "Algebraic-fraction answer -> MCQ."
},
{
"source": "St Nicholas 2025 P6 Prelim P1 Q23",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Lina bought 3 packets of stickers, each containing y stickers. She kept 3 stickers and gave the rest equally to her 6 friends. How many stickers did each friend receive, in terms of y?",
"answer0": "\\(\\dfrac{3y-3}{6}\\)",
"answer1": "\\(\\dfrac{3y+3}{6}\\)",
"answer2": "\\(\\dfrac{3y-3}{3}\\)",
"answer3": "\\(\\dfrac{y-3}{6}\\)",
"correct_answer": 0,
"note": "Algebraic-fraction answer -> MCQ. Part (b) value 17 is numeric (separate FIB)."
},
{
"source": "Henry Park 2025 P6 Prelim Q29",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Students were asked to choose a pouch, a keychain or a badge. \\(\\dfrac{1}{5}\\) chose keychain. The number who chose pouch was \\(\\dfrac{1}{2}\\) of those who chose badge. What fraction of the students chose badge?",
"answer0": "\\(\\dfrac{8}{15}\\)",
"answer1": "\\(\\dfrac{4}{15}\\)",
"answer2": "\\(\\dfrac{2}{3}\\)",
"answer3": "\\(\\dfrac{4}{5}\\)",
"correct_answer": 0,
"note": "Fraction answer -> MCQ."
},
{
"source": "Nanyang 2023 P6 Weighted Assessment 1 Paper 2 Q16",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "The figure is made up of 2 squares, ABCD and DEFG. X is on GD and Y is on DE. BC = 7 cm, FE = 6 cm and XD = DY = YE. What fraction of the figure is unshaded?",
"answer0": "\\(\\dfrac{47}{85}\\)",
"answer1": "\\(\\dfrac{38}{85}\\)",
"answer2": "\\(\\dfrac{47}{49}\\)",
"answer3": "\\(\\dfrac{38}{47}\\)",
"correct_answer": 0,
"note": "Fraction answer -> MCQ. Part (a) value 38 is numeric (separate FIB)."
},
{
"source": "Nanyang 2023 P6 Weighted Assessment 1 Paper 2 Q17",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Clips per container: White 30, Blue 50, Green 60. Clement has some white and some blue containers. The ratio of clips in his white containers to clips in his blue containers is 3 : 2. Express the number of his blue containers as a fraction of the total number of his containers.",
"answer0": "\\(\\dfrac{2}{7}\\)",
"answer1": "\\(\\dfrac{5}{7}\\)",
"answer2": "\\(\\dfrac{2}{5}\\)",
"answer3": "\\(\\dfrac{3}{7}\\)",
"correct_answer": 0,
"note": "Fraction answer -> MCQ. Part (a) value 30 is numeric (separate FIB)."
},
{
"source": "PLMGS 2025 P6 Prelim P2 Q11",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "At first, \\(\\dfrac{1}{5}\\) of a rectangular container was filled with water. More water flowed in from a leaking tap for 30 minutes; the volume rose from 75 cm³ at 0 min to 225 cm³ at 30 min. At the end of 30 minutes, what fraction of the container was filled with water?",
"answer0": "\\(\\dfrac{3}{5}\\)",
"answer1": "\\(\\dfrac{2}{5}\\)",
"answer2": "\\(\\dfrac{3}{4}\\)",
"answer3": "\\(\\dfrac{1}{3}\\)",
"correct_answer": 0,
"note": "Fraction answer -> MCQ. Part (a) value 5 is numeric (separate FIB)."
},
{
"source": "PLMGS 2025 P6 Prelim P2 Q13",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Ticket prices: Adult below 65 \\$24, Adult 65+ \\$17, Child below 12 \\$10. Adult tickets sold were 6 times the child tickets. \\(\\dfrac{4}{5}\\) of adult tickets sold were for adults below 65. A total of \\$9464 was collected. What fraction of the tickets sold were for adults aged 65 years and above? Give your answer in the simplest form.",
"answer0": "\\(\\dfrac{6}{35}\\)",
"answer1": "\\(\\dfrac{24}{35}\\)",
"answer2": "\\(\\dfrac{5}{35}\\)",
"answer3": "\\(\\dfrac{1}{6}\\)",
"correct_answer": 0,
"note": "Fraction answer -> MCQ. Part (b) value 455 is numeric (separate FIB). Currency $ escaped."
},
{
"source": "Tao Nan 2024 P6 Practice P2 Q17",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Mrs Wu spent \\(\\dfrac{1}{6}\\) of her money on a dress and 2 blouses. The dress cost 3 times as much as each blouse. What fraction of Mrs Wu's money was spent on each blouse?",
"answer0": "\\(\\dfrac{1}{30}\\)",
"answer1": "\\(\\dfrac{1}{18}\\)",
"answer2": "\\(\\dfrac{1}{15}\\)",
"answer3": "\\(\\dfrac{1}{6}\\)",
"correct_answer": 0,
"note": "Fraction answer -> MCQ. Part (b) value 420 is numeric (separate FIB)."
},
{
"source": "Catholic High 2025 P6 Prelim P2 Q15",
"fix_types": [
"plain_fraction_latex",
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Chocolate muffins 3 for \\$5, vanilla muffins 4 for \\$6. Mrs Sim spent an equal amount of money on the chocolate muffins and the vanilla muffins. What fraction of the muffins she bought were chocolate? Leave your answer in the simplest form.",
"answer0": "\\(\\dfrac{9}{19}\\)",
"answer1": "\\(\\dfrac{10}{19}\\)",
"answer2": "\\(\\dfrac{9}{10}\\)",
"answer3": "\\(\\dfrac{18}{19}\\)",
"correct_answer": 0,
"note": "ASCII fraction answer 9/19 -> LaTeX and FIB -> MCQ. Part (a) value 288 is numeric (separate FIB). Currency $ escaped."
},
{
"source": "PLMGS 2025 P6 Prelim P2 Q9",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "The line graph shows tram visitors Mon–Fri (Mon 210, Tue 0, Wed 350, Thu 180, Fri 420). Find the percentage increase in the number of visitors who took the tram from Thursday to Friday.",
"answer0": "\\(133\\dfrac{1}{3}\\)%",
"answer1": "\\(57\\dfrac{1}{7}\\)%",
"answer2": "\\(233\\dfrac{1}{3}\\)%",
"answer3": "120%",
"correct_answer": 0,
"note": "Mixed-number percentage answer -> MCQ. Part (a) 'Tuesday' is a separate MCQ (see other record)."
},
{
"source": "ACS Primary 2024 P6 Prelim P2 Q7",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "The bar graph shows the number of potted plants owned by families (owning 1,2,3,4,5,6 plants = 2,5,7,10,7,3 families). What is the ratio of the number of families with 3 or fewer potted plants to the number of families with more than 3 potted plants? Give your answer in the simplest form.",
"answer0": "7 : 10",
"answer1": "10 : 7",
"answer2": "14 : 20",
"answer3": "2 : 3",
"correct_answer": 0,
"note": "Ratio answer -> MCQ. Part (a) value 126 is numeric (separate FIB)."
},
{
"source": "Nanyang 2024 P6 Mid-Year Practice Paper 2 Q17",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Pouch Y had gold : silver tokens = 3 : 1. Pouch Z had gold : silver = 1 : 4. Pouch Z had 5 times as many tokens as Pouch Y. What was the ratio of the number of gold tokens in Pouch Y to the number of silver tokens in Pouch Z?",
"answer0": "3 : 16",
"answer1": "16 : 3",
"answer2": "3 : 4",
"answer3": "1 : 4",
"correct_answer": 0,
"note": "Ratio answer -> MCQ. Parts (b) 112 and (c) 384 are numeric (separate FIBs)."
},
{
"source": "Nanyang 2024 P6 Prelim Paper 2 Q6",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "In the square grid, trapezium ABCD has AD parallel to BC with AD twice as long as BC; triangle ABE has AE perpendicular to BE and AE = BE, not overlapping the trapezium. Find the ratio of the area of trapezium ABCD to the area of triangle ABE in its simplest form.",
"answer0": "21 : 10",
"answer1": "10 : 21",
"answer2": "2 : 1",
"answer3": "21 : 5",
"correct_answer": 0,
"note": "Ratio answer -> MCQ; the manifest already listed the four ratios as options, so this just sets type_id 1 and correct_answer 0 (21 : 10)."
},
{
"source": "PLMGS 2025 P6 Prelim P2 Q16",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "There were some books on Shelf A and Shelf B. Emily moved \\(\\dfrac{1}{7}\\) of Shelf A's books to Shelf B, making the ratio of books on Shelf A to Shelf B become 3 : 5. What was the ratio of the number of books on Shelf A to Shelf B at first? Give your answer in the simplest form.",
"answer0": "7 : 9",
"answer1": "9 : 7",
"answer2": "3 : 5",
"answer3": "6 : 7",
"correct_answer": 0,
"note": "Ratio answer -> MCQ. Part (b) value 351 is numeric (separate FIB)."
},
{
"source": "Rosyth 2022 P6 Prelim P1 Q27",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "A trapezium ABCD is drawn on a square grid. A parallelogram MNPQ is drawn with the same perimeter as ABCD. Find the ratio of the area of ABCD to the area of MNPQ.",
"answer0": "1 : 1",
"answer1": "2 : 1",
"answer2": "1 : 2",
"answer3": "3 : 2",
"correct_answer": 0,
"note": "Ratio answer -> MCQ."
},
{
"source": "Rosyth 2022 P6 Prelim P2 Q11",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "A big rectangle is divided into parts M, N, P (areas 5 : 7 : 8) and Q, R, S (areas 2 : 1 : 5), with M+N+P and Q+R+S each equal to one strip's area. What is the ratio of the area of N to the area of S?",
"answer0": "7 : 10",
"answer1": "10 : 7",
"answer2": "7 : 5",
"answer3": "5 : 8",
"correct_answer": 0,
"note": "Ratio answer -> MCQ. Part (b) value 3492 is numeric (separate FIB)."
},
{
"source": "Rosyth 2022 P6 Prelim P2 Q14",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "A rectangular tank was full. Tap D (outflow) ran for 8 min, then Tap E (inflow) was also turned on; both were off when the tank was empty. From the graph, the tank held 58 ℓ when full and 18 ℓ after Tap D ran for 8 min. After Tap D was turned on for 8 minutes, what fraction of the tank was filled with water? Leave your answer in the simplest form.",
"answer0": "9 : 29",
"answer1": "18 : 58",
"answer2": "29 : 9",
"answer3": "9 : 20",
"correct_answer": 0,
"note": "Ratio/fraction answer 9 : 29 -> MCQ. Part (b) value 3.5 is numeric (separate FIB)."
},
{
"source": "Red Swastika 2022 P6 Prelim P2 Q16",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "A rectangle ABCD is drawn on a square grid. What is the ratio of the length AB to the perimeter of rectangle ABCD?",
"answer0": "5 : 18",
"answer1": "5 : 9",
"answer2": "9 : 5",
"answer3": "5 : 13",
"correct_answer": 0,
"note": "Ratio answer -> MCQ. Part (b) value 37.5 is numeric (separate FIB)."
},
{
"source": "Nanyang 2024 P6 Prelim Q23",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Bob's competition lasted 4 h 50 min. After it, he waited 35 min for his mother, who fetched him at 4.15 p.m. What time did Bob's competition start?",
"answer0": "10.50 a.m.",
"answer1": "11.00 a.m.",
"answer2": "10.50 p.m.",
"answer3": "11.40 a.m.",
"correct_answer": 0,
"note": "Time answer (a.m./p.m. can't be typed on numpad) -> MCQ."
},
{
"source": "Nanyang 2025 P6 Prelim P2 Q10",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Town B is exactly halfway between Town A and Town C. At 9 a.m. Firdhaus drives from A toward C at 62 km/h and Elden drives from C toward A at 61 km/h. When they meet, their distance from Town B is 2 km. At what time did Firdhaus meet Elden?",
"answer0": "1 p.m.",
"answer1": "1 a.m.",
"answer2": "12 noon",
"answer3": "2 p.m.",
"correct_answer": 0,
"note": "Time answer -> MCQ."
},
{
"source": "Nanyang 2025 P6 Prelim P2 Q13",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Bobby paid \\$43.50 to rent 1 skateboard (\\$4.50/hour) and 1 pair of rollerblades (\\$10/hour). He started both rentals at the same time and ended both at 6.30 p.m. What time did Bobby start his rental?",
"answer0": "3.30 p.m.",
"answer1": "3.30 a.m.",
"answer2": "4.30 p.m.",
"answer3": "2.30 p.m.",
"correct_answer": 0,
"note": "Time answer -> MCQ. Currency $ escaped."
},
{
"source": "Tao Nan 2023 P6 Prelim P2Q10",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Ralph and Steve raced at constant speeds. Ralph cycled at 20 km/h. When Steve had covered half the distance, Ralph was 3.5 km ahead of him. Ralph reached the finishing line at 10.45 a.m. What time did Steve reach the finishing line?",
"answer0": "11.06 a.m.",
"answer1": "11.06 p.m.",
"answer2": "11.21 a.m.",
"answer3": "10.51 a.m.",
"correct_answer": 0,
"note": "Time answer -> MCQ."
},
{
"source": "SCGS 2023 P6 Prelim Paper 2 Q6",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Parking on Friday to Sunday: 1st hour \\$2.60, every additional 30 min or part thereof \\$1.89. Jamie was charged \\$12.05 for parking from 10 a.m. on a Saturday. What is a possible time she left the mall?",
"answer0": "1.30 p.m.",
"answer1": "1.30 a.m.",
"answer2": "2.00 p.m.",
"answer3": "12.30 p.m.",
"correct_answer": 0,
"note": "Time answer -> MCQ. Part (a) value 7.90 is numeric (separate FIB). Currency $ escaped."
},
{
"source": "ACS 2022 P6 Prelim Q23",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "The square grid shows the plan of the amenities in a condominium, with North pointing up. In what direction is the fitness corner from the playground?",
"answer0": "South-East",
"answer1": "North-West",
"answer2": "South-West",
"answer3": "North-East",
"correct_answer": 0,
"note": "Direction word answer -> MCQ."
},
{
"source": "ACS 2023 P6 Weighted Assessment 2 Q10",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "The line graph shows the number of wallets sold from Monday to Saturday. During which one-day interval was the increase in the number of wallets sold the greatest?",
"answer0": "Thursday to Friday",
"answer1": "Wednesday to Thursday",
"answer2": "Friday to Saturday",
"answer3": "Monday to Tuesday",
"correct_answer": 0,
"note": "Day-name interval answer -> single MCQ (was two blanks 'from Thursday to Friday')."
},
{
"source": "ACS 2024 P6 Prelim Paper 2 Q2",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "The times to complete a maze were: Robot A 4.5 s, Robot B 6.81 s, Robot C 3.92 s, Robot D 4.12 s, Robot E 5.1 s. Which robot was the fastest to complete the maze?",
"answer0": "Robot C",
"answer1": "Robot A",
"answer2": "Robot D",
"answer3": "Robot B",
"correct_answer": 0,
"note": "Letter/label answer 'C' -> MCQ. Part (b) value 3.93 is numeric (separate FIB)."
},
{
"source": "Henry Park 2022 P6 Prelim Q20",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "The square grid shows the positions of points A, B, C, D and E. Which point is south-west of point B?",
"answer0": "Point C",
"answer1": "Point A",
"answer2": "Point D",
"answer3": "Point E",
"correct_answer": 0,
"note": "Point-label answer -> single MCQ (was two blanks: 'C' is south-west of 'B')."
},
{
"source": "Henry Park 2025 P6 Prelim Q21",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "The diagram shows a solid with a square base and triangular faces meeting at an apex. Name the solid.",
"answer0": "Pyramid",
"answer1": "Prism",
"answer2": "Cuboid",
"answer3": "Cone",
"correct_answer": 0,
"note": "Word answer 'Pyramid' -> MCQ. Part (b) value 5 (faces) is numeric (separate FIB)."
},
{
"source": "MGS 2022 P6 Prelim Q21",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Based on the square grid (with North up), which point is north-east of point C?",
"answer0": "Point P",
"answer1": "Point Q",
"answer2": "Point A",
"answer3": "Point B",
"correct_answer": 0,
"note": "Point-label answer -> single MCQ (original asked four point-label blanks; reframed to the north-east-of-C relation, answer P)."
},
{
"source": "Nan Hua 2022 P6 Prelim Q23",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "The square grid shows the positions of points A to H, with North pointing up. In which direction is point A from point D?",
"answer0": "North-West",
"answer1": "North-East",
"answer2": "South-West",
"answer3": "South-East",
"correct_answer": 0,
"note": "Direction answer -> MCQ. Part (b) 'C' is a separate point-label MCQ."
},
{
"source": "Nan Hua 2024 P6 Non-Weighted Assessment 2 Q24",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "The grid squares are 1 cm by 1 cm. Triangle BEF has area 4 cm². Which triangle has an area twice the area of triangle BEF?",
"answer0": "Triangle BCF",
"answer1": "Triangle ABF",
"answer2": "Triangle BEF",
"answer3": "Triangle CEF",
"correct_answer": 0,
"note": "Point-label answer 'BCF' -> MCQ. Part (a) value 4 is numeric (separate FIB)."
},
{
"source": "Nan Hua 2024 P6 Prelim P2 Q13",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "The graph shows the number of visitors to the Children's Museum from July to December. In which one-month period was there the greatest change in the number of visitors?",
"answer0": "October to November",
"answer1": "July to August",
"answer2": "November to December",
"answer3": "September to October",
"correct_answer": 0,
"note": "Month-name interval -> single MCQ. Part (b) value 13.3 is numeric (separate FIB)."
},
{
"source": "Nanyang 2023 P6 Prelim P2 Q13",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Each small card sold at \\$5, each big card at \\$8. Janice sold 12 small and 7 big; Deepa 7 small and 9 big; Zi Ying 6 small and 10 big. Which of the three children collected the most money?",
"answer0": "Janice",
"answer1": "Deepa",
"answer2": "Zi Ying",
"answer3": "They collected equal amounts",
"correct_answer": 0,
"note": "Name answer -> MCQ. The amount 116 and part (b) 12 are numeric (separate FIBs). Currency $ escaped."
},
{
"source": "Henry Park 2025 P6 Prelim P2 Q15",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "A florist sold roses Monday to Sunday (daily sales: Mon 240, Tue 80, Wed 280, Thu 120, Fri 40, Sat 120, Sun 160). On which two days did the florist sell the same number of roses?",
"answer0": "Thursday and Saturday",
"answer1": "Monday and Wednesday",
"answer2": "Tuesday and Friday",
"answer3": "Wednesday and Sunday",
"correct_answer": 0,
"note": "Two-day-name answer -> single MCQ. Part (a) 'Wednesday' and part (c) value 927 are separate (Wednesday as another MCQ, 927 as FIB)."
},
{
"source": "Nan Hua 2023 P6 Prelim P2 Q17",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Alice was given the same pocket money every day. The line graph shows the money she had left at the end of each day. On which day did Alice spend the most money?",
"answer0": "Tuesday",
"answer1": "Monday",
"answer2": "Wednesday",
"answer3": "Thursday",
"correct_answer": 0,
"note": "Day-name answer -> MCQ. Parts (b) 10 and (c) 13.60 are numeric (separate FIBs)."
},
{
"source": "Red Swastika 2022 P6 Prelim P1 Q24",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Study the solid, which has 2 triangular faces and 3 rectangular faces. Name the solid.",
"answer0": "Prism",
"answer1": "Pyramid",
"answer2": "Cuboid",
"answer3": "Cylinder",
"correct_answer": 0,
"note": "Word answer 'Prism' -> MCQ. Parts (b) 2 and 3 (face counts) are numeric (separate FIBs)."
},
{
"source": "Red Swastika 2024 P6 Prelim Paper 2 Q8",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "Fruits sold: Apple 80, Orange 48, Pineapple 24, Mango 40, at prices Apple \\$0.55, Orange \\$0.70, Pineapple \\$2.20, Mango \\$1.40. From the sale of which type of fruit did the shop collect the most money?",
"answer0": "Mango",
"answer1": "Pineapple",
"answer2": "Apple",
"answer3": "Orange",
"correct_answer": 0,
"note": "Fruit-name answer -> MCQ. The amount 56 is numeric (separate FIB). Currency $ escaped."
},
{
"source": "St Nicholas 2023 P6 Weighted Assessment 2 Q3",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "The figure is made up of a rhombus ABEG and a square BCDF. Name an obtuse angle in the figure.",
"answer0": "∠y",
"answer1": "∠x",
"answer2": "∠ABE",
"answer3": "∠BCD",
"correct_answer": 0,
"note": "Angle-label answer '∠y' -> MCQ. Parts (b) 52 and (c) 105 are numeric (separate FIBs)."
},
{
"source": "St Nicholas 2023 P6 Weighted Assessment 2 Q7",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "The line graph shows the mass of newspapers collected at the end of each month (Jan 13.2, Feb 17.4, Mar 20, Apr 10.6, May 12.6, Jun 21.4 kg). In which month was the increase in the mass of newspapers collected the greatest?",
"answer0": "June",
"answer1": "February",
"answer2": "March",
"answer3": "May",
"correct_answer": 0,
"note": "Month-name answer -> MCQ. Parts (b) 47 and (c) 78.3 are numeric (separate FIBs)."
},
{
"source": "Tao Nan 2023 P6 Weighted Assessment 2 P2 Q14",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "The graph shows Mr Abram's electricity consumption from September to February (monthly kWh include Dec 270). The national average consumption was 360 kWh. In which month was Mr Abram's consumption 75% of the national average?",
"answer0": "December",
"answer1": "November",
"answer2": "October",
"answer3": "January",
"correct_answer": 0,
"note": "Month-name answer -> MCQ. Part (a) value 32 is numeric (separate FIB)."
},
{
"source": "Tao Nan 2024 P6 Practice P1 Q22",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "In the square grid (points A to H with a North arrow), which point is west of point B?",
"answer0": "Point A",
"answer1": "Point C",
"answer2": "Point D",
"answer3": "Point G",
"correct_answer": 0,
"note": "Point-label answer 'A' -> single MCQ. Part (b) 'G' (D is north-east of G) is a separate point-label MCQ."
},
{
"source": "Tao Nan 2025 P6 Prelim P1 Q30",
"fix_types": [
"fraction_answer_mcq"
],
"type_id": 1,
"question": "A number pattern fills columns A, B, C, D row by row (Row 1: A3 B4 C5 D6; Row 2: A10 B9 C8 D7; Row 3: A11 B12 C13 D14; continuing). In which column will the number 498 appear?",
"answer0": "Column A",
"answer1": "Column B",
"answer2": "Column C",
"answer3": "Column D",
"correct_answer": 0,
"note": "Column-label answer 'A' -> MCQ. The row value 124 is numeric (separate FIB)."
},
{
"source": "Nan Chiau 2022 P6 Prelim Q30",
"fix_types": [
"plain_fraction_latex"
],
"type_id": 0,
"question": "The pie chart shows how a group of students travel to school (Car = \\(\\dfrac{1}{5}\\)). The bar graph also represents how the same group travel to school; the bar for public bus is not drawn (Car ≈ 80, Walk ≈ 150, School bus ≈ 120). For each statement, indicate True, False or Not possible to tell: (i) There are 400 students altogether. (ii) \\(\\dfrac{3}{5}\\) of the students walk to school. (iii) 50 students take public bus to school.",
"answer0": null,
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"note": "Plain-text fractions 1/5 and 3/5 in the stem wrapped as inline LaTeX \\(\\dfrac{a}{b}\\). True/False question; no answer values changed."
}
]