{
  "paper": {
    "school": "Rosyth",
    "year": 2022,
    "level": "P3",
    "label": "Semestral Assessment 2",
    "source_prefix": "Rosyth 2022 P3 Semestral Assessment 2",
    "has_answer_key": true
  },
  "questions": [
    {
      "n": 1,
      "type_id": 1,
      "question": "5 thousands and 3 tens written in numeral is [?].",
      "answer0": "5300",
      "answer1": "5030",
      "answer2": "5003",
      "answer3": "5130",
      "correct_answer": 1,
      "skill_id": 66,
      "difficulty_id": 1,
      "explanation": "5 thousands = 5000, 3 tens = 30. 5000 + 30 = 5030.",
      "hints": ["Thousands place is the 4th digit from the right.", "There are 0 hundreds and 0 ones."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q1",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 2 (0-based index 1)."
    },
    {
      "n": 2,
      "type_id": 1,
      "question": "Which of the following numbers is the digit 4 in the hundreds place?",
      "answer0": "1942",
      "answer1": "2804",
      "answer2": "3476",
      "answer3": "4501",
      "correct_answer": 2,
      "skill_id": 66,
      "difficulty_id": 1,
      "explanation": "In 3476 the digit 4 is in the hundreds place (400).",
      "hints": ["The hundreds digit is the 3rd from the right.", "Check each number's third-from-right digit."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q2",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 3 (0-based index 2)."
    },
    {
      "n": 3,
      "type_id": 1,
      "question": "Ruth bought 6 packets of stickers. Each packet contains 9 stickers. How many stickers did Ruth have altogether?",
      "answer0": "15",
      "answer1": "45",
      "answer2": "48",
      "answer3": "54",
      "correct_answer": 3,
      "skill_id": 76,
      "difficulty_id": 1,
      "explanation": "6 packets x 9 stickers = 54 stickers.",
      "hints": ["Multiply packets by stickers per packet.", "6 x 9 = 54."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q3",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 4 (0-based index 3)."
    },
    {
      "n": 4,
      "type_id": 1,
      "question": "The height of a classroom door is about [?].",
      "answer0": "2 cm",
      "answer1": "2 m",
      "answer2": "20 cm",
      "answer3": "20 m",
      "correct_answer": 1,
      "skill_id": 84,
      "difficulty_id": 1,
      "explanation": "A classroom door is about 2 m tall.",
      "hints": ["A door is taller than a person.", "1 m is about the height from the floor to a child's chest."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q4",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 2 (0-based index 1)."
    },
    {
      "n": 5,
      "type_id": 1,
      "question": "What is the time shown on the clock?",
      "answer0": "9 minutes past 10",
      "answer1": "9 minutes to 10",
      "answer2": "51 minutes past 10",
      "answer3": "51 minutes to 10",
      "correct_answer": 0,
      "skill_id": 89,
      "difficulty_id": 2,
      "explanation": "The hour hand is just past 10 and the minute hand points near the 2 (about 9-10 min), so it is 9 minutes past 10.",
      "hints": ["The minute hand near the 2 means about 10 minutes.", "Use 'past' when the minute hand is on the right side."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q5",
      "image_needed": true,
      "image_options": false,
      "image_file": "q5.png",
      "notes": "Key: option 1 (0-based index 0). Figure: clock face, page 4, centred below the question stem."
    },
    {
      "n": 6,
      "type_id": 1,
      "question": "Which of the following is the greatest number?",
      "answer0": "3914",
      "answer1": "3491",
      "answer2": "3941",
      "answer3": "3149",
      "correct_answer": 2,
      "skill_id": 68,
      "difficulty_id": 1,
      "explanation": "All start with 3; compare hundreds: 3941 has 9 hundreds, the largest.",
      "hints": ["Thousands digit is the same (3).", "Compare the hundreds digit next."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q6",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 3 (0-based index 2)."
    },
    {
      "n": 7,
      "type_id": 1,
      "question": "What is the difference between 7900 and 1090?",
      "answer0": "6800",
      "answer1": "6810",
      "answer2": "6990",
      "answer3": "8990",
      "correct_answer": 1,
      "skill_id": 70,
      "difficulty_id": 1,
      "explanation": "7900 - 1090 = 6810.",
      "hints": ["Difference means subtract.", "7900 - 1090 = 6810."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q7",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 2 (0-based index 1)."
    },
    {
      "n": 8,
      "type_id": 1,
      "question": "What is the remainder when 732 is divided by 7?",
      "answer0": "1",
      "answer1": "2",
      "answer2": "3",
      "answer3": "4",
      "correct_answer": 3,
      "skill_id": 74,
      "difficulty_id": 2,
      "explanation": "732 / 7 = 104 remainder 4 (104 x 7 = 728, 732 - 728 = 4).",
      "hints": ["Find the largest multiple of 7 not exceeding 732.", "104 x 7 = 728; 732 - 728 = 4."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q8",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 4 (0-based index 3)."
    },
    {
      "n": 9,
      "type_id": 1,
      "question": "There are 35 students in a class. There are 5 students in each group. How many groups are there in the class?",
      "answer0": "5",
      "answer1": "7",
      "answer2": "30",
      "answer3": "40",
      "correct_answer": 1,
      "skill_id": 76,
      "difficulty_id": 1,
      "explanation": "35 / 5 = 7 groups.",
      "hints": ["Divide total students by group size.", "35 / 5 = 7."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q9",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 2 (0-based index 1)."
    },
    {
      "n": 10,
      "type_id": 1,
      "question": "How much more water must be poured into the container for it to be filled with 500 ml of water?",
      "answer0": "150 ml",
      "answer1": "230 ml",
      "answer2": "270 ml",
      "answer3": "350 ml",
      "correct_answer": 0,
      "skill_id": 84,
      "difficulty_id": 2,
      "explanation": "The water level is at 350 ml. 500 - 350 = 150 ml more needed.",
      "hints": ["Read the current water level on the measuring cup.", "Subtract the level from 500 ml."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q10",
      "image_needed": true,
      "image_options": false,
      "image_file": "q10.png",
      "notes": "Key: option 1 (0-based index 0). Figure: measuring jug marked 500 ml / 250 ml, water level ~350 ml, page 6, above the question text."
    },
    {
      "n": 11,
      "type_id": 1,
      "question": "640 is [?] less than 5800.",
      "answer0": "5140",
      "answer1": "5160",
      "answer2": "5260",
      "answer3": "6440",
      "correct_answer": 1,
      "skill_id": 70,
      "difficulty_id": 2,
      "explanation": "5800 - 640 = 5160.",
      "hints": ["'640 is X less than 5800' means 5800 - 640 = X.", "5800 - 640 = 5160."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q11",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 2 (0-based index 1). Blank is a fill-in within the stem but rendered as MCQ in the paper; kept as MCQ."
    },
    {
      "n": 12,
      "type_id": 1,
      "question": "The sum of 2 numbers is 360. The difference between the 2 numbers is 40. What is the value of the smaller number?",
      "answer0": "160",
      "answer1": "200",
      "answer2": "320",
      "answer3": "400",
      "correct_answer": 0,
      "skill_id": 71,
      "difficulty_id": 3,
      "explanation": "Smaller number = (sum - difference) / 2 = (360 - 40) / 2 = 320 / 2 = 160.",
      "hints": ["Subtract the difference from the sum, then halve.", "(360 - 40) / 2 = 160."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q12",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 1 (0-based index 0)."
    },
    {
      "n": 13,
      "type_id": 1,
      "question": "Paul had 54 pencils. Weiming had 7 times as many pencils as Paul. How many more pencils did Weiming have than Paul?",
      "answer0": "61",
      "answer1": "324",
      "answer2": "378",
      "answer3": "432",
      "correct_answer": 1,
      "skill_id": 76,
      "difficulty_id": 2,
      "explanation": "Weiming = 7 x 54 = 378. More than Paul = 378 - 54 = 324.",
      "hints": ["First find Weiming's pencils: 7 x 54.", "Then subtract Paul's 54 to find how many more."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q13",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 2 (0-based index 1)."
    },
    {
      "n": 14,
      "type_id": 1,
      "question": "Which one of the following fractions is equivalent to 2/3?",
      "answer0": "1/2",
      "answer1": "2/6",
      "answer2": "4/6",
      "answer3": "4/9",
      "correct_answer": 2,
      "skill_id": 77,
      "difficulty_id": 1,
      "explanation": "2/3 = 4/6 (multiply numerator and denominator by 2).",
      "hints": ["Multiply top and bottom of 2/3 by the same number.", "2/3 = 4/6."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q14",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 3 (0-based index 2)."
    },
    {
      "n": 15,
      "type_id": 1,
      "question": "Which one of the following fractions is smaller than 1/2?",
      "answer0": "2/3",
      "answer1": "3/5",
      "answer2": "5/6",
      "answer3": "3/7",
      "correct_answer": 3,
      "skill_id": 79,
      "difficulty_id": 2,
      "explanation": "3/7 = 0.43 which is less than 1/2 = 0.5; the others are all greater than 1/2.",
      "hints": ["A fraction is less than 1/2 when the numerator is less than half the denominator.", "Half of 7 is 3.5, and 3 < 3.5, so 3/7 < 1/2."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q15",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: option 4 (0-based index 3)."
    },
    {
      "n": 16,
      "type_id": 2,
      "question": "What is the greatest 4-digit number that can be formed using all the digits 5, 2, 3, 7? Each digit can only be used once. [?]",
      "answer0": "7532",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 68,
      "difficulty_id": 1,
      "explanation": "Arrange digits from largest to smallest: 7, 5, 3, 2 -> 7532.",
      "hints": ["Put the largest digit in the thousands place.", "Order all four digits from largest to smallest."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q16",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Digits 5,2,3,7 shown in boxes on page 8; figure not required as they are stated in stem. Key: 7532."
    },
    {
      "n": 17,
      "type_id": 2,
      "question": "4702 + 3266 = [?]",
      "answer0": "7968",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 70,
      "difficulty_id": 1,
      "explanation": "4702 + 3266 = 7968.",
      "hints": ["Add the ones, then tens, hundreds, thousands.", "4702 + 3266 = 7968."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q17",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 7968."
    },
    {
      "n": 18,
      "type_id": 2,
      "question": "There were 5398 people at a carnival. 4267 were adults and the rest were children. How many children were at the carnival? [?]",
      "answer0": "1131",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 71,
      "difficulty_id": 1,
      "explanation": "5398 - 4267 = 1131 children.",
      "hints": ["Children = total people - adults.", "5398 - 4267 = 1131."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q18",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 1131."
    },
    {
      "n": 19,
      "type_id": 2,
      "question": "10 m 2 cm = [?] cm",
      "answer0": "1002",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 86,
      "difficulty_id": 2,
      "explanation": "10 m = 1000 cm; 1000 + 2 = 1002 cm.",
      "hints": ["1 m = 100 cm, so 10 m = 1000 cm.", "Add the extra 2 cm."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q19",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 1002 (cm)."
    },
    {
      "n": 20,
      "type_id": 2,
      "question": "Find the value of $3.30 - $0.80. [?]",
      "answer0": "$2.50",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 82,
      "difficulty_id": 1,
      "explanation": "$3.30 - $0.80 = $2.50.",
      "hints": ["Subtract the dollars and cents.", "$3.30 - $0.80 = $2.50."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q20",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: $2.50."
    },
    {
      "n": 21,
      "type_id": 2,
      "question": "What is the missing value in the box? 5200 = [?] + 3855",
      "answer0": "1345",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 70,
      "difficulty_id": 2,
      "explanation": "Missing value = 5200 - 3855 = 1345.",
      "hints": ["Rearrange: missing = 5200 - 3855.", "5200 - 3855 = 1345."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q21",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 1345. Equation written inline in stem; no separate figure needed."
    },
    {
      "n": 22,
      "type_id": 2,
      "question": "What is the missing digit in the box? 8 x [?] = 56",
      "answer0": "7",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 73,
      "difficulty_id": 1,
      "explanation": "8 x 7 = 56, so the missing digit is 7.",
      "hints": ["Which number times 8 gives 56?", "56 / 8 = 7."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q22",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 7. Equation written inline in stem."
    },
    {
      "n": 23,
      "type_id": 2,
      "question": "Find the product of 509 and 9. [?]",
      "answer0": "4581",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 75,
      "difficulty_id": 1,
      "explanation": "509 x 9 = 4581.",
      "hints": ["Product means multiply.", "509 x 9 = 4581."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q23",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 4581."
    },
    {
      "n": 24,
      "type_id": 2,
      "question": "Write the missing numerator and denominator. 1 = [?]/8 = 10/[?]",
      "answer0": "8",
      "answer1": "10",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 80,
      "difficulty_id": 1,
      "explanation": "1 = 8/8, and 1 = 10/10, so (a) = 8 and (b) = 10.",
      "hints": ["A fraction equal to 1 has equal numerator and denominator.", "(a) matches the denominator 8; (b) matches the numerator 10."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q24",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: (a) 8, (b) 10. answer0 = blank (a), answer1 = blank (b)."
    },
    {
      "n": 25,
      "type_id": 2,
      "question": "The graph shows the number of bottles four classes collected for a recycling project. What is the total number of bottles collected by the 4 classes? [?]",
      "answer0": "196",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 104,
      "difficulty_id": 2,
      "explanation": "From the bar graph: 3A=68, 3B=52, 3C=34, 3D=44. 68 + 52 + 34 + 44 = 196.",
      "hints": ["Read the height of each class's bar.", "Add the four values together."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q25",
      "image_needed": true,
      "image_options": false,
      "image_file": "q25.png",
      "notes": "Key: 196. Figure: bar graph 'Number of Bottles Collected by 4 Classes' (3A-3D), page 11, below the question stem."
    },
    {
      "n": 26,
      "type_id": 1,
      "question": "The graph shows the number of ice cream cones sold during the weekdays. Which day has twice as many ice cream cones sold as on Tuesday?",
      "answer0": "Monday",
      "answer1": "Wednesday",
      "answer2": "Thursday",
      "answer3": "Friday",
      "correct_answer": 3,
      "skill_id": 104,
      "difficulty_id": 2,
      "explanation": "Tuesday sold about 55 cones; twice that is 110, which matches Friday's bar.",
      "hints": ["Read Tuesday's value, then double it.", "Find the day whose bar equals double Tuesday's."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q26",
      "image_needed": true,
      "image_options": false,
      "image_file": "q26.png",
      "notes": "Open-ended in paper but answer is a single word -> made MCQ per word-answer rule. Key: Friday. Figure: horizontal bar graph 'Number of Ice Cream Cones Sold during the Weekdays', page 12, below the stem."
    },
    {
      "n": 27,
      "type_id": 2,
      "question": "Devi started her swimming lesson at 10.30 a.m. Her lesson lasted for 1 h 15 min. What time did her swimming lesson end? [?]",
      "answer0": "11.45 a.m.",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 92,
      "difficulty_id": 2,
      "explanation": "10.30 a.m. + 1 h = 11.30 a.m.; + 15 min = 11.45 a.m.",
      "hints": ["Add the hours first, then the minutes.", "10.30 + 1 h 15 min = 11.45 a.m."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q27",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key writes '11.45 pm' but the start time is a.m. and the duration is only 1h15min, so the correct ending is 11.45 a.m. (key typo). Answer recorded as 11.45 a.m."
    },
    {
      "n": 28,
      "type_id": 2,
      "question": "Sulin took 1 h 25 min to cycle from her home to the park. Then she took another 45 min to cycle from the park to the library. What was the total time taken for Sulin to cycle from her home to the library? [?] h [?] min",
      "answer0": "2",
      "answer1": "10",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 93,
      "difficulty_id": 2,
      "explanation": "1 h 25 min + 45 min = 1 h 70 min = 2 h 10 min.",
      "hints": ["Add the minutes: 25 + 45 = 70 min.", "70 min = 1 h 10 min, plus the 1 h gives 2 h 10 min."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q28",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 2 h 10 min. answer0 = hours, answer1 = minutes. The home/park/library illustration is decorative and not needed to solve."
    },
    {
      "n": 29,
      "type_id": 2,
      "question": "What are the missing digits represented by (a) and (b)? 4 9 3 [?] + 3 4 [?] 8 = 8 3 4 5",
      "answer0": "7",
      "answer1": "0",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 70,
      "difficulty_id": 3,
      "explanation": "Ones: (a) + 8 = 5 with regroup, so (a) = 7 (7 + 8 = 15). Tens: 1 + 3 + (b) = 4, so (b) = 0.",
      "hints": ["Start from the ones column and watch for regrouping.", "(a) + 8 ends in 5, so (a) = 7; then solve the tens column for (b)."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q29",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: (a) 7, (b) 0. Vertical addition is transcribed inline; answer0 = (a), answer1 = (b)."
    },
    {
      "n": 30,
      "type_id": 2,
      "question": "Lucy has 234 more beads than her sister. How many beads must Lucy give to her sister so that both of them have the same number of beads? [?]",
      "answer0": "117",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 2,
      "explanation": "To equalise, give away half the difference: 234 / 2 = 117 beads.",
      "hints": ["Each bead given closes the gap by 2.", "Give half the difference: 234 / 2 = 117."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q30",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 117."
    },
    {
      "n": 31,
      "type_id": 2,
      "question": "The figure is made up of 6 identical rectangles. What fraction of the figure is shaded? Give your answer in its simplest form. [?]",
      "answer0": "1/3",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 78,
      "difficulty_id": 2,
      "explanation": "Shaded = 1 full rectangle + two half rectangles = 2 rectangles out of 6 = 2/6 = 1/3.",
      "hints": ["Two half-shaded rectangles together make one whole rectangle.", "Shaded equals 2 of 6 rectangles; simplify 2/6."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q31",
      "image_needed": true,
      "image_options": false,
      "image_file": "q31.png",
      "notes": "Key: 1/3. Figure: 2-by-3 grid of rectangles with one fully shaded and two diagonally half-shaded, page 14, below the stem."
    },
    {
      "n": 32,
      "type_id": 2,
      "question": "What is the difference in mass between the two puppies? Give your answer in kilograms and grams. [?] kg [?] g",
      "answer0": "1",
      "answer1": "880",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 87,
      "difficulty_id": 2,
      "explanation": "8030 g - 6150 g = 1880 g = 1 kg 880 g.",
      "hints": ["Subtract the two masses in grams.", "1880 g = 1 kg 880 g (1000 g = 1 kg)."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q32",
      "image_needed": true,
      "image_options": false,
      "image_file": "q32.png",
      "notes": "Key: 1 kg 880 g. answer0 = kg, answer1 = g. Figure: two scales, Puppy A 6150 g and Puppy B 8030 g, page 15, below the stem."
    },
    {
      "n": 33,
      "type_id": 2,
      "question": "Figure ABCD is made up of 3 identical rectangles. If the length of AD is 8 cm, what is the area of ABCD? [?] cm2",
      "answer0": "96",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 97,
      "difficulty_id": 3,
      "explanation": "AD = 8 cm is the height. The three identical small rectangles split the figure; each small rectangle has height 4 cm (8 / 2) and the figure area equals AB x AD. With AB = 12 cm, area = 12 x 8 = 96 cm2.",
      "hints": ["AD is the height of the big rectangle.", "Use the 3-identical-rectangle structure to find the width, then area = length x breadth."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q33",
      "image_needed": true,
      "image_options": false,
      "image_file": "q33.png",
      "notes": "Key: 96 cm2. Figure: rectangle ABCD split into 3 identical rectangles, AD labelled 8 cm, page 15, below the stem."
    },
    {
      "n": 34,
      "type_id": 0,
      "question": "(a) In the grid, draw a line parallel to AB through Point C. (b) In the grid, draw a line perpendicular to XY through Point Z.",
      "answer0": null,
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 101,
      "difficulty_id": 2,
      "explanation": "(a) Draw a line through C with the same slope as AB. (b) Draw a line through Z at right angles to XY.",
      "hints": [],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q34",
      "image_needed": true,
      "image_options": false,
      "image_file": "q34.png",
      "notes": "Interactive draw-on-grid task; type_id 0, SKIPPED on insert. Key shows the drawn parallel line (a) and perpendicular line (b). Figures: two square grids with line AB/point C and line XY/point Z, page 16."
    },
    {
      "n": 35,
      "type_id": 2,
      "question": "How many of the marked angles are obtuse angles? [?]",
      "answer0": "4",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 99,
      "difficulty_id": 2,
      "explanation": "Counting the marked angles greater than a right angle in the figure gives 4 obtuse angles.",
      "hints": ["An obtuse angle is larger than a right angle (90 degrees) but less than a straight angle.", "Check each marked corner against a right angle."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q35",
      "image_needed": true,
      "image_options": false,
      "image_file": "q35.png",
      "notes": "Key: 4. Count-to-verify: 5-sided figure with 5 marked angles, page 17, below the stem. Whole figure must be captured."
    },
    {
      "n": 36,
      "type_id": 2,
      "question": "Amanda prepared a few jugs of fruit punch for a party. After the guests drank 6 l 533 ml of fruit punch, there was 2 l 467 ml of fruit punch left. Each jug contained 3 l of fruit punch. (a) What is the total volume of fruit punch prepared at the start of the party? (b) How many jugs of fruit punch did she prepare? [?] ml [?] jugs",
      "answer0": "9000",
      "answer1": "3",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 87,
      "difficulty_id": 3,
      "explanation": "(a) 6 l 533 ml + 2 l 467 ml = 9 l = 9000 ml. (b) 9000 ml / 3000 ml = 3 jugs.",
      "hints": ["(a) Total = punch drunk + punch left.", "(b) Divide the total by 3 l (3000 ml) per jug."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q36",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: (a) 9000 ml, (b) 3 jugs. answer0 = (a) total volume in ml, answer1 = (b) number of jugs."
    },
    {
      "n": 37,
      "type_id": 2,
      "question": "Sarah spent $35.30 at a supermarket. Belle spent $7.65 less than her. How much did both of them spend in all? [?]",
      "answer0": "$62.95",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 83,
      "difficulty_id": 2,
      "explanation": "Belle = $35.30 - $7.65 = $27.65. Total = $35.30 + $27.65 = $62.95.",
      "hints": ["First find Belle's spending: $35.30 - $7.65.", "Add both amounts together."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q37",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: $62.95."
    },
    {
      "n": 38,
      "type_id": 2,
      "question": "3 square cards of the same size are placed together to form a large rectangle. The total length is 15 cm. (a) Find the length of y. (b) Find the area of the shaded parts of the rectangle. [?] cm [?] cm2",
      "answer0": "10",
      "answer1": "50",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 97,
      "difficulty_id": 3,
      "explanation": "(a) Each square side = 15 / 3 = 5 cm; y spans 2 squares = 5 x 2 = 10 cm. (b) 2 squares are shaded: 2 x (5 x 5) = 50 cm2.",
      "hints": ["(a) Find one square's side from the total length, then y covers two squares.", "(b) Area of shaded = number of shaded squares x area of one square."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q38",
      "image_needed": true,
      "image_options": false,
      "image_file": "q38.png",
      "notes": "Key: (a) 10 cm, (b) 50 cm2. answer0 = (a) y in cm, answer1 = (b) shaded area in cm2. Figure: row of 3 squares, two left shaded, total length 15 cm, y spans first two, page 20, below part (a)."
    },
    {
      "n": 39,
      "type_id": 2,
      "question": "Ray and Samy had 168 cupcakes. After Ray had given 15 cupcakes to Samy, he had 2 times as many cupcakes as Samy. How many cupcakes did Samy have at first? [?]",
      "answer0": "41",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 3,
      "explanation": "Total stays 168 = 3 units, so 1 unit = 56 (Samy after). Samy after = 168 / 3 = 56. Samy at first = 56 - 15 = 41.",
      "hints": ["The total of 168 does not change when cupcakes are passed.", "After: Ray = 2 units, Samy = 1 unit, so Samy after = 168 / 3; then add back the 15 he received."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q39",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 41. (Key working shows 168 - 45 = 123, 123/3 = 41, reaching the same answer.)"
    },
    {
      "n": 40,
      "type_id": 2,
      "question": "Mrs Tan has $244 to buy some apples to make some pies. The apples are sold in packets of 8. Each packet costs $6. What is the maximum number of apples she can buy? [?]",
      "answer0": "320",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 3,
      "explanation": "$244 / $6 = 40 packets remainder $4. 40 packets x 8 apples = 320 apples.",
      "hints": ["First find how many $6 packets fit into $244.", "Multiply the number of packets by 8 apples each."],
      "source": "Rosyth 2022 P3 Semestral Assessment 2 Q40",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key: 320 (40 packets R$4, 40 x 8 = 320 apples)."
    }
  ]
}