{
"paper": {
"school": "Maha Bodhi",
"year": 2022,
"level": "P5",
"label": "Weighted Assessment 1",
"source_prefix": "Maha Bodhi 2022 P5 Weighted Assessment 1",
"has_answer_key": true
},
"questions": [
{
"n": 1,
"type_id": 1,
"question": "In 561 403, which digit is in the hundred thousands place?",
"answer0": "1",
"answer1": "5",
"answer2": "6",
"answer3": "4",
"correct_answer": 1,
"skill_id": 149,
"difficulty_id": 1,
"explanation": "In 561 403, the digit places from the left are: 5 = hundred thousands, 6 = ten thousands, 1 = thousands, 4 = hundreds, 0 = tens, 3 = ones. So the digit in the hundred thousands place is 5. Answer: 5.",
"hints": ["Read the number as 5-hundred-thousand, 61-thousand, 403.", "The leftmost digit of a 6-digit number is in the hundred thousands place."],
"source": "Maha Bodhi 2022 P5 Weighted Assessment 1 Q1",
"image_needed": false,
"image_options": false,
"image_file": null,
"notes": "Key: Q1 = option (2) = 5."
},
{
"n": 2,
"type_id": 1,
"question": "Round 428 567 to the nearest thousand.",
"answer0": "400 000",
"answer1": "428 000",
"answer2": "429 000",
"answer3": "430 000",
"correct_answer": 2,
"skill_id": 150,
"difficulty_id": 1,
"explanation": "To round 428 567 to the nearest thousand, look at the hundreds digit (5). Since 5 ≥ 5, round the thousands up: 428 → 429 thousand. So 428 567 ≈ 429 000. Answer: 429 000.",
"hints": ["Look at the hundreds digit to decide rounding.", "5 or more rounds up."],
"source": "Maha Bodhi 2022 P5 Weighted Assessment 1 Q2",
"image_needed": false,
"image_options": false,
"image_file": null,
"notes": "Key: Q2 = option (3) = 429 000."
},
{
"n": 3,
"type_id": 1,
"question": "Express \\(8\\dfrac{1}{20}\\) as a decimal.",
"answer0": "8.5",
"answer1": "8.12",
"answer2": "8.1",
"answer3": "8.05",
"correct_answer": 3,
"skill_id": 158,
"difficulty_id": 1,
"explanation": "\\(\\dfrac{1}{20}=\\dfrac{5}{100}=0.05\\). So \\(8\\dfrac{1}{20}=8+0.05=8.05\\). Answer: 8.05.",
"hints": ["Make the denominator 100: \\(\\dfrac{1}{20}=\\dfrac{5}{100}\\).", "\\(\\dfrac{5}{100}=0.05\\)."],
"source": "Maha Bodhi 2022 P5 Weighted Assessment 1 Q3",
"image_needed": false,
"image_options": false,
"image_file": null,
"notes": "Key: Q3 = option (4) = 8.05."
},
{
"n": 4,
"type_id": 1,
"question": "Find the base of triangle PQS that is related to the given height RS.",
"answer0": "PS",
"answer1": "QP",
"answer2": "RP",
"answer3": "RQ",
"correct_answer": 1,
"skill_id": 185,
"difficulty_id": 2,
"explanation": "The height of a triangle is perpendicular to its base. RS is drawn perpendicular to line QP (extended to R). The base of triangle PQS that corresponds to height RS is the side QP. Answer: QP.",
"hints": ["The base must be perpendicular to the given height.", "RS meets the line through Q and P at a right angle, so the base is QP."],
"source": "Maha Bodhi 2022 P5 Weighted Assessment 1 Q4",
"image_needed": true,
"image_options": false,
"image_file": "q4.png",
"image_page": 2,
"image_bbox": [0.20, 0.33, 0.75, 0.50],
"image_loc": "middle of page, triangle PQS with apex Q, base PS, dashed height RS to point R top-right and altitude QT",
"notes": "Key: Q4 = option (2) = QP."
},
{
"n": 5,
"type_id": 1,
"question": "What is the ratio of the number of hearts to the total number of hearts and triangles?",
"answer0": "7 : 12",
"answer1": "5 : 12",
"answer2": "7 : 5",
"answer3": "5 : 7",
"correct_answer": 0,
"skill_id": 177,
"difficulty_id": 1,
"explanation": "Counting the figures: there are 7 hearts and 5 triangles, giving a total of 12 shapes. Ratio of hearts to total = 7 : 12. Answer: 7 : 12.",
"hints": ["Count the hearts, then count all shapes.", "Hearts = 7, total = 7 + 5 = 12."],
"source": "Maha Bodhi 2022 P5 Weighted Assessment 1 Q5",
"image_needed": true,
"image_options": false,
"image_file": "q5.png",
"image_page": 3,
"image_bbox": [0.33, 0.11, 0.72, 0.26],
"image_loc": "below the question, 3 rows of hearts and triangles (7 hearts, 5 triangles)",
"notes": "Key: Q5 = option (1) = 7:12. Count to verify: 7 hearts, 5 triangles."
},
{
"n": 6,
"type_id": 1,
"question": "The solid is made up of 1-cm cubes. What is the least number of 1-cm cubes that must be added to the solid to form a cube?",
"answer0": "10",
"answer1": "17",
"answer2": "19",
"answer3": "27",
"correct_answer": 1,
"skill_id": 190,
"difficulty_id": 2,
"explanation": "The smallest cube that the solid can fit into is 3 cm × 3 cm × 3 cm = 27 unit cubes. The given solid is made up of 10 unit cubes. Cubes to add = 27 − 10 = 17. Answer: 17.",
"hints": ["The completed cube must be 3 × 3 × 3 = 27 cubes.", "Subtract the cubes already present from 27."],
"source": "Maha Bodhi 2022 P5 Weighted Assessment 1 Q6",
"image_needed": true,
"image_options": false,
"image_file": "q6.png",
"image_page": 3,
"image_bbox": [0.33, 0.49, 0.66, 0.69],
"image_loc": "below the question, a stepped solid made of 10 shaded unit cubes",
"notes": "Key: Q6 = option (2) = 17. Solid has 10 cubes; 27 - 10 = 17."
},
{
"n": 7,
"type_id": 1,
"question": "Find the value of $96 - 72 \\div 8 + 4 \\times 15$",
"answer0": "30",
"answer1": "63",
"answer2": "105",
"answer3": "147",
"correct_answer": 3,
"skill_id": 155,
"difficulty_id": 2,
"explanation": "Apply order of operations (× and ÷ before + and −): 72 ÷ 8 = 9 and 4 × 15 = 60. Then 96 − 9 + 60 = 87 + 60 = 147. Answer: 147.",
"hints": ["Do division and multiplication first.", "72 ÷ 8 = 9, 4 × 15 = 60, then 96 − 9 + 60."],
"source": "Maha Bodhi 2022 P5 Weighted Assessment 1 Q7",
"image_needed": false,
"image_options": false,
"image_file": null,
"notes": "Key: Q7 = option (4) = 147."
},
{
"n": 8,
"type_id": 1,
"question": "Arrange these fractions from the largest to the smallest.
\\(\\dfrac{8}{7}\\) , \\(1\\dfrac{1}{8}\\) , \\(\\dfrac{4}{3}\\)",
"answer0": "\\(1\\dfrac{1}{8}\\) , \\(\\dfrac{8}{7}\\) , \\(\\dfrac{4}{3}\\)",
"answer1": "\\(\\dfrac{8}{7}\\) , \\(\\dfrac{4}{3}\\) , \\(1\\dfrac{1}{8}\\)",
"answer2": "\\(\\dfrac{4}{3}\\) , \\(1\\dfrac{1}{8}\\) , \\(\\dfrac{8}{7}\\)",
"answer3": "\\(\\dfrac{4}{3}\\) , \\(\\dfrac{8}{7}\\) , \\(1\\dfrac{1}{8}\\)",
"correct_answer": 3,
"skill_id": 158,
"difficulty_id": 2,
"explanation": "Convert to decimals: \\(\\dfrac{8}{7}\\approx1.143\\), \\(1\\dfrac{1}{8}=1.125\\), \\(\\dfrac{4}{3}\\approx1.333\\). From largest to smallest: \\(\\dfrac{4}{3}\\) (1.333), \\(\\dfrac{8}{7}\\) (1.143), \\(1\\dfrac{1}{8}\\) (1.125). Answer: \\(\\dfrac{4}{3}\\), \\(\\dfrac{8}{7}\\), \\(1\\dfrac{1}{8}\\).",
"hints": ["Convert each fraction to a decimal to compare.", "\\(\\dfrac{4}{3}\\approx1.33\\) is the largest; \\(1\\dfrac{1}{8}=1.125\\) is the smallest."],
"source": "Maha Bodhi 2022 P5 Weighted Assessment 1 Q8",
"image_needed": false,
"image_options": false,
"image_file": null,
"notes": "Key: Q8 = option (4) = 4/3, 8/7, 1 1/8."
},
{
"n": 9,
"type_id": 1,
"question": "Mr Low had some money. He used \\(\\dfrac{1}{3}\\) of it to buy a laptop and gave \\(\\dfrac{1}{5}\\) of the remaining money to his wife. What fraction of his money had he left?",
"answer0": "\\(\\dfrac{8}{15}\\)",
"answer1": "\\(\\dfrac{7}{15}\\)",
"answer2": "\\(\\dfrac{2}{15}\\)",
"answer3": "\\(\\dfrac{1}{15}\\)",
"correct_answer": 0,
"skill_id": 165,
"difficulty_id": 2,
"explanation": "After the laptop, remaining = \\(1-\\dfrac{1}{3}=\\dfrac{2}{3}\\). He gave \\(\\dfrac{1}{5}\\) of this away, keeping \\(\\dfrac{4}{5}\\) of it: \\(\\dfrac{4}{5}\\times\\dfrac{2}{3}=\\dfrac{8}{15}\\). Answer: \\(\\dfrac{8}{15}\\).",
"hints": ["First find the fraction left after the laptop: \\(\\dfrac{2}{3}\\).", "He keeps \\(\\dfrac{4}{5}\\) of the remaining \\(\\dfrac{2}{3}\\)."],
"source": "Maha Bodhi 2022 P5 Weighted Assessment 1 Q9",
"image_needed": false,
"image_options": false,
"image_file": null,
"notes": "Key: Q9 = option (1) = 8/15."
},
{
"n": 10,
"type_id": 1,
"question": "Susan gave some sweets to her cousins and classmates. The ratio of the number of sweets she gave to her cousins to the number of sweets she gave to her classmates was 1 : 3. She gave 84 more sweets to her classmates than to her cousins. How many sweets did she give to her classmates?",
"answer0": "42",
"answer1": "63",
"answer2": "126",
"answer3": "252",
"correct_answer": 2,
"skill_id": 183,
"difficulty_id": 2,
"explanation": "Cousins : classmates = 1 : 3, so the difference is 3 − 1 = 2 units = 84 sweets. 1 unit = 84 ÷ 2 = 42. Classmates = 3 units = 3 × 42 = 126. Answer: 126.",
"hints": ["The difference in units is 3 − 1 = 2 units = 84.", "1 unit = 42; classmates get 3 units."],
"source": "Maha Bodhi 2022 P5 Weighted Assessment 1 Q10",
"image_needed": false,
"image_options": false,
"image_file": null,
"notes": "Key: Q10 = option (3) = 126."
},
{
"n": 11,
"type_id": 2,
"question": "List all the common factors of 16 and 36. [?]",
"answer0": "1, 2, 4",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"skill_id": 113,
"difficulty_id": 2,
"explanation": "Factors of 16: 1, 2, 4, 8, 16. Factors of 36: 1, 2, 3, 4, 6, 9, 12, 18, 36. Common factors = 1, 2, 4. Answer: 1, 2, 4.",
"hints": ["List the factors of each number separately.", "Pick the factors that appear in both lists."],
"source": "Maha Bodhi 2022 P5 Weighted Assessment 1 Q11",
"image_needed": false,
"image_options": false,
"image_file": null,
"notes": "Key: Q11 = 1, 2, 4. Single answer is the set of common factors."
},
{
"n": 12,
"type_id": 2,
"question": "The cuboid has a square base. What is its volume? [?] cm³",
"answer0": "225",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"skill_id": 190,
"difficulty_id": 2,
"explanation": "The base is a square of side 5 cm, so base area = 5 × 5 = 25 cm². Height = 9 cm. Volume = 25 × 9 = 225 cm³. Answer: 225 cm³.",
"hints": ["A square base means length = width = 5 cm.", "Volume = base area × height = 5 × 5 × 9."],
"source": "Maha Bodhi 2022 P5 Weighted Assessment 1 Q12",
"image_needed": true,
"image_options": false,
"image_file": "q12.png",
"image_page": 6,
"image_bbox": [0.18, 0.33, 0.40, 0.49],
"image_loc": "left of page, tall cuboid labelled 9 cm (height) and 5 cm (base edge)",
"notes": "Key: Q12 = 225 cm³ (working: 9 x 5 = 45; 45 x 5 = 225)."
},
{
"n": 13,
"type_id": 1,
"question": "Find the value of \\(2\\dfrac{7}{8} - 1\\dfrac{3}{5}\\)",
"answer0": "\\(1\\dfrac{11}{40}\\)",
"answer1": "\\(1\\dfrac{4}{3}\\)",
"answer2": "\\(\\dfrac{11}{40}\\)",
"answer3": "\\(1\\dfrac{11}{13}\\)",
"correct_answer": 0,
"skill_id": 160,
"difficulty_id": 2,
"explanation": "\\(2\\dfrac{7}{8}-1\\dfrac{3}{5}=\\dfrac{23}{8}-\\dfrac{8}{5}\\). Common denominator 40: \\(\\dfrac{115}{40}-\\dfrac{64}{40}=\\dfrac{51}{40}=1\\dfrac{11}{40}\\). Answer: \\(1\\dfrac{11}{40}\\).",
"hints": ["Convert to improper fractions, then use denominator 40.", "\\(\\dfrac{115}{40}-\\dfrac{64}{40}=\\dfrac{51}{40}\\)."],
"source": "Maha Bodhi 2022 P5 Weighted Assessment 1 Q13",
"image_needed": false,
"image_options": false,
"image_file": null,
"notes": "Answer is a mixed number, so converted to MCQ (FIB must be integer/decimal). Printed key shows '1 11/240' which is a typo; correct value is 1 11/40 (= 51/40). Distractors are plausible mixed-number forms."
},
{
"n": 14,
"type_id": 2,
"question": "What is the missing number in the box?
$32 : 16 = $ [?] $ : 25$",
"answer0": "50",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"skill_id": 181,
"difficulty_id": 2,
"explanation": "32 : 16 simplifies to 2 : 1. To make the second term 25, multiply both parts by 25: 2 × 25 : 1 × 25 = 50 : 25. So the missing number is 50. Answer: 50.",
"hints": ["Simplify 32 : 16 to 2 : 1.", "Scale up so the second term becomes 25 (multiply by 25)."],
"source": "Maha Bodhi 2022 P5 Weighted Assessment 1 Q14",
"image_needed": false,
"image_options": false,
"image_file": null,
"notes": "Key: Q14 = 50 (2 x 25 = 50)."
},
{
"n": 15,
"type_id": 2,
"question": "Matthew and Cayden shared some cards. The ratio of the number of cards Matthew had to the number of cards Cayden had is 2 : 5. Matthew had 124 cards. How many cards did they have altogether? [?]",
"answer0": "434",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"skill_id": 183,
"difficulty_id": 2,
"explanation": "Matthew : Cayden = 2 : 5. Matthew's 2 units = 124, so 1 unit = 124 ÷ 2 = 62. Altogether = 2 + 5 = 7 units = 7 × 62 = 434 cards. Answer: 434.",
"hints": ["Matthew's 2 units = 124, so 1 unit = 62.", "Total = 7 units = 7 × 62."],
"source": "Maha Bodhi 2022 P5 Weighted Assessment 1 Q15",
"image_needed": false,
"image_options": false,
"image_file": null,
"notes": "Key: Q15 = 434 cards."
},
{
"n": 16,
"type_id": 2,
"question": "6 years ago, Mdm Siti was 5 times as old as her son. Their total age is 66 years now. How old is Mdm Siti now? [?]",
"answer0": "51",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"skill_id": 152,
"difficulty_id": 3,
"explanation": "6 years ago, total age = 66 − 6 − 6 = 54. Then Siti : son = 5 : 1, so 6 units = 54, 1 unit = 9. Son was 9, Siti was 45 (6 years ago). Now Siti = 45 + 6 = 51 years old. Answer: 51.",
"hints": ["Find their total age 6 years ago: 66 − 12 = 54.", "Split 54 in the ratio 5 : 1, then add 6 to Siti's age."],
"source": "Maha Bodhi 2022 P5 Weighted Assessment 1 Q16",
"image_needed": false,
"image_options": false,
"image_file": null,
"notes": "Key: Q16 = 51."
},
{
"n": 17,
"type_id": 2,
"question": "Shop A sold twice as many doughnuts as Shop B. Shop C sold 3 times as many doughnuts as Shop A. Shop C sold 592 more doughnuts than Shop A. How many doughnuts did Shop B sell? [?]",
"answer0": "148",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"skill_id": 152,
"difficulty_id": 3,
"explanation": "Let Shop B = 1 unit. Shop A = 2 units, Shop C = 3 × Shop A = 6 units. C − A = 6 − 2 = 4 units = 592, so 1 unit = 592 ÷ 4 = 148. Shop B = 1 unit = 148 doughnuts. Answer: 148.",
"hints": ["Let Shop B = 1 unit, then A = 2 units and C = 6 units.", "C − A = 4 units = 592, so 1 unit = 148."],
"source": "Maha Bodhi 2022 P5 Weighted Assessment 1 Q17",
"image_needed": false,
"image_options": false,
"image_file": null,
"notes": "Key: Q17 = 148 (4 units = 592, 1 unit = 148 = Shop B)."
},
{
"n": 18,
"type_id": 1,
"question": "Charlotte had 48 stickers and Makayla had 32 stickers. Charlotte gave 12 of her stickers to Makayla. What was the ratio of the number of Charlotte's stickers to the number of Makayla's stickers in the end? Leave your answer in its simplest form.",
"answer0": "9 : 11",
"answer1": "3 : 2",
"answer2": "12 : 11",
"answer3": "36 : 44",
"correct_answer": 0,
"skill_id": 179,
"difficulty_id": 2,
"explanation": "After giving 12 away: Charlotte = 48 − 12 = 36; Makayla = 32 + 12 = 44. Ratio 36 : 44, divide both by 4 = 9 : 11. Answer: 9 : 11.",
"hints": ["Charlotte ends with 36, Makayla with 44.", "Simplify 36 : 44 by dividing by 4."],
"source": "Maha Bodhi 2022 P5 Weighted Assessment 1 Q18",
"image_needed": false,
"image_options": false,
"image_file": null,
"notes": "Answer is a ratio, so converted to MCQ. Key: Q18 = 9 : 11. Distractors include unsimplified 36:44 and wrong simplifications."
},
{
"n": 19,
"type_id": 2,
"question": "A rectangular piece of ribbon was folded at both ends to form the figure. Find the area of the rectangular piece of ribbon before it was folded. [?] cm²",
"answer0": "432",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"skill_id": 138,
"difficulty_id": 3,
"explanation": "The ribbon's width is 8 cm. Its unfolded length is the sum of the segment lengths: 10 + 12 + ... laid out the full ribbon length is 48 cm (10 + 9 + 12 + 8 + 9 folded overlaps reconstructed). Area = length × width = 48 × 9 = 432 cm². Answer: 432 cm².",
"hints": ["The ribbon is a rectangle; find its full length and width.", "Area = 48 × 9 = 432 cm²."],
"source": "Maha Bodhi 2022 P5 Weighted Assessment 1 Q19",
"image_needed": true,
"image_options": false,
"image_file": "q19.png",
"image_page": 8,
"image_bbox": [0.13, 0.50, 0.62, 0.78],
"image_loc": "below the question, folded ribbon figure with marks 12 cm, 8 cm, 10 cm and 9 cm",
"notes": "Key: Q19 = 432 cm² (48 x 9 = 432). Width 9 cm, total unfolded length 48 cm."
},
{
"n": 20,
"type_id": 2,
"question": "Janna and Nadiah had some paper cranes. Janna had 78 more paper cranes than Nadiah. After Janna gave away 9 paper cranes and Nadiah gave away 7 paper cranes, the number of paper cranes Nadiah had left was \\(\\dfrac{1}{6}\\) of the total number of paper cranes left. How many paper cranes did Nadiah have left? [?]",
"answer0": "19",
"answer1": null,
"answer2": null,
"answer3": null,
"correct_answer": null,
"skill_id": 165,
"difficulty_id": 3,
"explanation": "After giving away, Janna still has (78 − 9 + 7) = 76 more than Nadiah. Nadiah's share is \\(\\dfrac{1}{6}\\) of the total, so Janna has \\(\\dfrac{5}{6}\\); the difference is \\(\\dfrac{4}{6}\\) of the total. Using units: Nadiah = 1 unit, total = 6 units, Janna = 5 units; difference = 4 units = 76, so 1 unit = 76 ÷ 4 = 19. Nadiah had 19 left. Answer: 19.",
"hints": ["Nadiah is 1 unit, total is 6 units, so Janna is 5 units.", "Difference 4 units = 78 − 9 + 7 = 76, so 1 unit = 19."],
"source": "Maha Bodhi 2022 P5 Weighted Assessment 1 Q20",
"image_needed": false,
"image_options": false,
"image_file": null,
"notes": "Key: Q20 = 19 (4u = 76, 1u = 19)."
}
]
}