{
  "paper": {
    "school": "Maha Bodhi",
    "year": 2024,
    "level": "P3",
    "label": "Weighted Assessment 2",
    "source_prefix": "Maha Bodhi 2024 P3 Weighted Assessment 2",
    "has_answer_key": true
  },
  "questions": [
    {
      "n": 1,
      "type_id": 1,
      "question": "The bar graph shows the number of people at a supermarket.\n\nHow many women are there at the supermarket?",
      "answer0": "55",
      "answer1": "50",
      "answer2": "44",
      "answer3": "42",
      "correct_answer": 1,
      "skill_id": 102,
      "difficulty_id": 1,
      "explanation": "Read the height of the bar labelled 'Women' on the graph. The Women bar reaches 50, so there are 50 women at the supermarket.",
      "hints": ["Find the bar labelled 'Women'.", "Trace the top of that bar across to the number scale."],
      "source": "Maha Bodhi 2024 P3 Weighted Assessment 2 Q1",
      "image_needed": true,
      "image_options": false,
      "image_page": 1,
      "image_loc": "middle of page, below the question, titled 'People at a Supermarket'",
      "image_bbox": [0.27, 0.49, 0.79, 0.69],
      "image_file": "q1.png",
      "notes": "Bar graph: Men=35, Women=50, Boys=15, Girls=27 (approx). Answer from bar graph = 50."
    },
    {
      "n": 2,
      "type_id": 1,
      "question": "I have four sides.\nI have exactly two right angles.\nWhich of the shapes am I?",
      "answer0": "Shape 1",
      "answer1": "Shape 2",
      "answer2": "Shape 3",
      "answer3": "Shape 4",
      "correct_answer": 0,
      "skill_id": 99,
      "difficulty_id": 2,
      "explanation": "A right-angled trapezium has four sides and exactly two right angles. Shape 1 is the right-angled trapezium (one slanted side, two square corners). Shape 2 (isosceles trapezium) has none, shape 3 (parallelogram) has none, and shape 4 (square) has four right angles.",
      "hints": ["Count the corners that look like a perfect square corner (right angle).", "You need a four-sided shape with exactly TWO square corners, not zero and not four."],
      "source": "Maha Bodhi 2024 P3 Weighted Assessment 2 Q2",
      "image_needed": true,
      "image_options": true,
      "image_page": 2,
      "image_loc": "four option shapes stacked vertically on the left, labelled (1)-(4)",
      "image_bbox": [0.24, 0.21, 0.42, 0.56],
      "image_file": "q2.png",
      "notes": "Image-option MCQ: each option (1)-(4) is a quadrilateral. Key=1 (option 1, right-angled trapezium). Crop each option to q2_opt0..3.png."
    },
    {
      "n": 3,
      "type_id": 1,
      "question": "Which of the following fractions is equivalent to 3/4?",
      "answer0": "2/3",
      "answer1": "4/5",
      "answer2": "9/12",
      "answer3": "9/16",
      "correct_answer": 2,
      "skill_id": 77,
      "difficulty_id": 1,
      "explanation": "Multiply both the numerator and denominator of 3/4 by 3: (3x3)/(4x3) = 9/12. So 9/12 is equivalent to 3/4.",
      "hints": ["Multiply the top and bottom of 3/4 by the same number.", "3/4 = 6/8 = 9/12."],
      "source": "Maha Bodhi 2024 P3 Weighted Assessment 2 Q3",
      "image_needed": false,
      "image_options": false,
      "image_page": null,
      "image_loc": null,
      "image_bbox": null,
      "image_file": null,
      "notes": ""
    },
    {
      "n": 4,
      "type_id": 1,
      "question": "In the figure, name a pair of perpendicular lines in the square grid.",
      "answer0": "PQ and RT",
      "answer1": "OR and RT",
      "answer2": "RT and TU",
      "answer3": "YZ and SZ",
      "correct_answer": 1,
      "skill_id": 100,
      "difficulty_id": 2,
      "explanation": "Perpendicular lines meet at a right angle. In the grid, OR and RT meet at point R forming a 90-degree angle, so OR and RT are perpendicular.",
      "hints": ["Perpendicular lines cross to make a square corner (right angle).", "Check which pair of lines in the grid meets at exactly 90 degrees."],
      "source": "Maha Bodhi 2024 P3 Weighted Assessment 2 Q4",
      "image_needed": true,
      "image_options": false,
      "image_page": 3,
      "image_loc": "top of page, square grid with lines labelled O,P,Q,R,S,T,U,V,W,X,Y,Z",
      "image_bbox": [0.30, 0.13, 0.74, 0.35],
      "image_file": "q4.png",
      "notes": "Key=2 (option 2, OR and RT)."
    },
    {
      "n": 5,
      "type_id": 1,
      "question": "[?] - 2/9 = 1/3\nWhat is the missing fraction in the box?",
      "answer0": "1/9",
      "answer1": "1/6",
      "answer2": "3/12",
      "answer3": "5/9",
      "correct_answer": 3,
      "skill_id": 81,
      "difficulty_id": 2,
      "explanation": "Add 2/9 to both sides: box = 1/3 + 2/9. Convert 1/3 to ninths: 1/3 = 3/9. Then 3/9 + 2/9 = 5/9. So the missing fraction is 5/9.",
      "hints": ["To find the missing number, add 2/9 back to 1/3.", "Change 1/3 into ninths first: 1/3 = 3/9."],
      "source": "Maha Bodhi 2024 P3 Weighted Assessment 2 Q5",
      "image_needed": false,
      "image_options": false,
      "image_page": null,
      "image_loc": null,
      "image_bbox": null,
      "image_file": null,
      "notes": "The blank in the equation is the MCQ subject; rendered the equation in the stem. Key=4 (option 4, 5/9)."
    },
    {
      "n": 6,
      "type_id": 1,
      "question": "Which one of the following fractions is the greatest?",
      "answer0": "5/9",
      "answer1": "5/12",
      "answer2": "7/9",
      "answer3": "7/12",
      "correct_answer": 2,
      "skill_id": 79,
      "difficulty_id": 2,
      "explanation": "With the same numerator, a smaller denominator is larger, and with the same denominator, a larger numerator is larger. 7/9 is the largest: 7/9 is more than half, and its numerator (7) is bigger than 5 and its denominator (9) is smaller than 12.",
      "hints": ["Compare fractions with the same denominator first: 5/9 vs 7/9, and 5/12 vs 7/12.", "Then compare 7/9 and 7/12 - same top, smaller bottom is bigger."],
      "source": "Maha Bodhi 2024 P3 Weighted Assessment 2 Q6",
      "image_needed": false,
      "image_options": false,
      "image_page": null,
      "image_loc": null,
      "image_bbox": null,
      "image_file": null,
      "notes": "Key=3 (option 3, 7/9)."
    },
    {
      "n": 7,
      "type_id": 2,
      "question": "Count the number of angles in the figure.\n(a) How many acute angles are there? [?]\n(b) How many obtuse angles are there? [?]",
      "answer0": "2",
      "answer1": "3",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 99,
      "difficulty_id": 2,
      "explanation": "An acute angle is smaller than a right angle; an obtuse angle is larger than a right angle but less than a straight angle. The marked figure has 2 acute angles and 3 obtuse angles.",
      "hints": ["Acute angles are smaller than a square corner; obtuse angles are wider than a square corner.", "Check each marked angle in turn and sort them into acute or obtuse."],
      "source": "Maha Bodhi 2024 P3 Weighted Assessment 2 Q7",
      "image_needed": true,
      "image_options": false,
      "image_page": 5,
      "image_loc": "middle-left of page, a five-sided figure with the interior angles marked by arcs",
      "image_bbox": [0.20, 0.28, 0.58, 0.47],
      "image_file": "q7.png",
      "notes": "Two blanks: (a)=2 acute, (b)=3 obtuse. Key: a) 2, b) 3."
    },
    {
      "n": 8,
      "type_id": 0,
      "question": "A line AB is drawn in the square grid. Draw a line parallel to AB, passing through point C.",
      "answer0": null,
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 101,
      "difficulty_id": 2,
      "explanation": "Draw a line through C with the same slope as AB (AB rises 1 square for every 1 square across). The line through C parallel to AB runs from near D up to the right edge, matching AB's diagonal direction.",
      "hints": ["Parallel lines never meet and have the same slant.", "Copy the up-and-across step pattern of AB, starting from point C."],
      "source": "Maha Bodhi 2024 P3 Weighted Assessment 2 Q8",
      "image_needed": true,
      "image_options": false,
      "image_page": 5,
      "image_loc": "lower-middle of page, square grid with diagonal line AB and point C marked",
      "image_bbox": [0.26, 0.59, 0.62, 0.81],
      "image_file": "q8.png",
      "notes": "Interactive draw task (no value answer) -> type_id 0, SKIPPED on insert. Key shows the parallel line drawn through C with AB's diagonal slope."
    },
    {
      "n": 9,
      "type_id": 2,
      "question": "Express 14/20 in its simplest form.\n[?]",
      "answer0": "7/10",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 78,
      "difficulty_id": 1,
      "explanation": "Divide both numerator and denominator by their highest common factor, 2: 14/20 = (14÷2)/(20÷2) = 7/10. Since 7 and 10 share no common factor, 7/10 is in simplest form.",
      "hints": ["Find a number that divides both 14 and 20.", "Both 14 and 20 can be divided by 2."],
      "source": "Maha Bodhi 2024 P3 Weighted Assessment 2 Q9",
      "image_needed": false,
      "image_options": false,
      "image_page": null,
      "image_loc": null,
      "image_bbox": null,
      "image_file": null,
      "notes": "Key=7/10."
    },
    {
      "n": 10,
      "type_id": 2,
      "question": "The bar graph shows the total number of cupcakes sold on Saturday.\n\nHow many more vanilla cupcakes than lemon cupcakes are sold on Saturday?\n[?]",
      "answer0": "48",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 104,
      "difficulty_id": 2,
      "explanation": "From the bar graph, vanilla = 84 and lemon = 36. The difference is 84 - 36 = 48. So 48 more vanilla cupcakes than lemon cupcakes were sold.",
      "hints": ["Read the length of the vanilla bar and the lemon bar.", "Subtract: vanilla amount minus lemon amount."],
      "source": "Maha Bodhi 2024 P3 Weighted Assessment 2 Q10",
      "image_needed": true,
      "image_options": false,
      "image_page": 6,
      "image_loc": "middle of page, horizontal bar graph titled with categories Vanilla, Strawberry, Lemon, Chocolate, Blueberry",
      "image_bbox": [0.15, 0.39, 0.86, 0.64],
      "image_file": "q10.png",
      "notes": "Horizontal bar graph: Vanilla=84, Strawberry=60, Lemon=36, Chocolate=68, Blueberry=20. Key: 84-36=48."
    },
    {
      "n": 11,
      "type_id": 2,
      "question": "Arrange the following fractions from the greatest to the smallest.\n1/2 , 1/8 , 3/4\n[?] , [?] , [?]",
      "answer0": "3/4",
      "answer1": "1/2",
      "answer2": "1/8",
      "correct_answer": null,
      "skill_id": 79,
      "difficulty_id": 2,
      "explanation": "Convert to eighths: 1/2 = 4/8, 1/8 = 1/8, 3/4 = 6/8. Ordering 6/8 > 4/8 > 1/8 gives, from greatest to smallest: 3/4, 1/2, 1/8.",
      "hints": ["Make the denominators the same: change all to eighths.", "1/2 = 4/8 and 3/4 = 6/8, then compare the numerators."],
      "source": "Maha Bodhi 2024 P3 Weighted Assessment 2 Q11",
      "image_needed": false,
      "image_options": false,
      "image_page": null,
      "image_loc": null,
      "image_bbox": null,
      "image_file": null,
      "notes": "Ordering task -> FIB, one blank per position, greatest first. Key: 3/4, 1/2, 1/8."
    },
    {
      "n": 12,
      "type_id": 2,
      "question": "The figure is made up of equal rectangles.\nWhat fraction of the figure is not shaded?\nLeave your answer in the simplest form.\n[?]",
      "answer0": "5/9",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 41,
      "difficulty_id": 2,
      "explanation": "The figure is split into equal rectangles. Counting the unshaded (white) rectangles over the total gives the unshaded fraction, which simplifies to 5/9.",
      "hints": ["Count all the equal rectangles, then count just the white (unshaded) ones.", "Write white over total, then simplify the fraction."],
      "source": "Maha Bodhi 2024 P3 Weighted Assessment 2 Q12",
      "image_needed": true,
      "image_options": false,
      "image_page": 7,
      "image_loc": "middle-left of page, a black-and-white grid of equal rectangles (checkerboard-like)",
      "image_bbox": [0.24, 0.46, 0.52, 0.56],
      "image_file": "q12.png",
      "notes": "Count-to-verify: shaded/unshaded grid. Key answer = 5/9 (unshaded). Verify the unshaded count against the figure crop."
    },
    {
      "n": 13,
      "type_id": 2,
      "question": "Clyden had $60 more than Kiefer.\nKiefer gave $8 to Clyden and had $20 left.\nHow much did Clyden have in the end?\n[?]",
      "answer0": "$96",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 83,
      "difficulty_id": 3,
      "explanation": "Kiefer had $20 left after giving away $8, so Kiefer started with 20 + 8 = $28. Clyden started with $60 more: 28 + 60 = $88. After receiving $8 from Kiefer, Clyden had 88 + 8 = $96.",
      "hints": ["Work out Kiefer's starting amount first: he had $20 after giving $8 away.", "Clyden started with $60 more than Kiefer, then gained the $8 Kiefer gave."],
      "source": "Maha Bodhi 2024 P3 Weighted Assessment 2 Q13",
      "image_needed": false,
      "image_options": false,
      "image_page": null,
      "image_loc": null,
      "image_bbox": null,
      "image_file": null,
      "notes": "Key working: 20+8=28; 28+60=88; 88+8=96. Answer $96."
    },
    {
      "n": 14,
      "type_id": 2,
      "question": "Mrs Tan had 3 bags of buttons.\nThe red bag and blue bag contained 242 buttons.\nThe blue bag and green bag contained 259 buttons.\nThe red bag and green bag contained 318 buttons.\nHow many buttons are there in two blue bags?\n[?]",
      "answer0": "183",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 3,
      "explanation": "(Red+Blue) + (Blue+Green) = 242 + 259 = 501. This counts both blue bags once each plus one red and one green. Subtract (Red+Green) = 318 to remove the red and green: 501 - 318 = 183. So two blue bags contain 183 buttons.",
      "hints": ["Add the two totals that both include the blue bag: 242 + 259.", "Then subtract the total that has no blue bag (red + green = 318)."],
      "source": "Maha Bodhi 2024 P3 Weighted Assessment 2 Q14",
      "image_needed": true,
      "image_options": false,
      "image_page": 9,
      "image_loc": "upper-middle of page, three drawn bags labelled RED, BLUE, GREEN",
      "image_bbox": [0.24, 0.20, 0.62, 0.32],
      "image_file": "q14.png",
      "notes": "Key working: 242+259=501; 501-318=183. Answer 183 (number in two blue bags). Bag illustration is decorative."
    }
  ]
}