{
  "paper": {
    "school": "Maha Bodhi School",
    "year": 2025,
    "level": "P5",
    "label": "Weighted Assessment 1",
    "source_prefix": "Maha Bodhi 2025 P5 Weighted Assessment 1",
    "has_answer_key": true
  },
  "questions": [
    {
      "n": 1,
      "type_id": 1,
      "question": "In 850 271, the digit 5 is in the ____________ place.",
      "answer0": "tens",
      "answer1": "hundreds",
      "answer2": "ten thousands",
      "answer3": "hundred thousands",
      "correct_answer": 2,
      "skill_id": 105,
      "difficulty_id": 1,
      "explanation": "Reading 850 271 by place value from the right: 1 ones, 7 tens, 2 hundreds, 0 thousands, 5 ten thousands, 8 hundred thousands. The digit 5 is in the ten thousands place. Answer: ten thousands.",
      "hints": ["Write the place values from the right: ones, tens, hundreds, thousands, ten thousands, hundred thousands.", "Locate where the 5 sits in 850 271."],
      "source": "Maha Bodhi 2025 P5 Weighted Assessment 1 Q1",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Place value. Answer key: option 3 (ten thousands)."
    },
    {
      "n": 2,
      "type_id": 1,
      "question": "Round 86 543 to the nearest thousand.",
      "answer0": "90 000",
      "answer1": "87 000",
      "answer2": "86 500",
      "answer3": "86 000",
      "correct_answer": 1,
      "skill_id": 150,
      "difficulty_id": 1,
      "explanation": "To round to the nearest thousand, look at the hundreds digit of 86 543, which is 5. Since 5 \\(\\geq\\) 5, round up: 86 543 rounds to 87 000. Answer: 87 000.",
      "hints": ["The thousands digit is 6; look at the hundreds digit (5) to decide.", "5 rounds the thousands digit up."],
      "source": "Maha Bodhi 2025 P5 Weighted Assessment 1 Q2",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Rounding to nearest 1000. Answer key: option 2 (87 000)."
    },
    {
      "n": 3,
      "type_id": 1,
      "question": "Express \\(\\dfrac{7}{1000}\\) as a decimal.",
      "answer0": "0.7",
      "answer1": "0.07",
      "answer2": "0.007",
      "answer3": "0.0007",
      "correct_answer": 2,
      "skill_id": 158,
      "difficulty_id": 1,
      "explanation": "A denominator of 1000 means the digit goes to the thousandths place: \\(\\dfrac{7}{1000} = 0.007\\). Answer: 0.007.",
      "hints": ["1000 means three decimal places (thousandths).", "Place the 7 in the thousandths position."],
      "source": "Maha Bodhi 2025 P5 Weighted Assessment 1 Q3",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Fraction to decimal. Answer key: option 3 (0.007)."
    },
    {
      "n": 4,
      "type_id": 1,
      "question": "Which of the following is nearest to 1?",
      "answer0": "\\(\\dfrac{4}{5}\\)",
      "answer1": "\\(\\dfrac{6}{7}\\)",
      "answer2": "\\(1\\dfrac{1}{4}\\)",
      "answer3": "\\(1\\dfrac{1}{6}\\)",
      "correct_answer": 1,
      "skill_id": 158,
      "difficulty_id": 2,
      "explanation": "Convert each to a decimal and find the distance from 1: \\(\\dfrac{4}{5}=0.8\\) (0.2 away), \\(\\dfrac{6}{7}\\approx0.857\\) (0.143 away), \\(1\\dfrac{1}{4}=1.25\\) (0.25 away), \\(1\\dfrac{1}{6}\\approx1.167\\) (0.167 away). The smallest distance is for \\(\\dfrac{6}{7}\\). Answer: \\(\\dfrac{6}{7}\\).",
      "hints": ["Convert each fraction to a decimal.", "Find which is the smallest distance from 1."],
      "source": "Maha Bodhi 2025 P5 Weighted Assessment 1 Q4",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Fraction options -> MCQ. Answer key: option 2 (6/7), which is 0.143 from 1, closest."
    },
    {
      "n": 5,
      "type_id": 1,
      "question": "In triangle ABD, the base is AD. Name the height.",
      "answer0": "AC",
      "answer1": "DE",
      "answer2": "EA",
      "answer3": "FB",
      "correct_answer": 3,
      "skill_id": 186,
      "difficulty_id": 2,
      "explanation": "The height of a triangle is the perpendicular distance from the opposite vertex to the line containing the chosen base. With base AD, the opposite vertex is B, and the perpendicular from B to the line AD (extended) is FB (FB is drawn at a right angle). Answer: FB.",
      "hints": ["The height is perpendicular to the base AD and runs from the opposite vertex B.", "Find the segment from B that meets line AD at a right angle."],
      "source": "Maha Bodhi 2025 P5 Weighted Assessment 1 Q5",
      "image_needed": true,
      "image_options": false,
      "image_file": "q5.png",
      "image_page": 2,
      "image_bbox": [0.42, 0.55, 0.78, 0.78],
      "notes": "Letter answer (segment name) -> MCQ. Answer key: option 4 (FB). Triangle ABD with vertices B (top), A and D, plus points C, E, F marking the dashed perpendiculars; for base AD the perpendicular height from B is FB."
    },
    {
      "n": 6,
      "type_id": 1,
      "question": "A rectangle has a perimeter of 20 cm. Its breadth is 2 cm. Find its length.",
      "answer0": "8 cm",
      "answer1": "9 cm",
      "answer2": "10 cm",
      "answer3": "16 cm",
      "correct_answer": 0,
      "skill_id": 136,
      "difficulty_id": 1,
      "explanation": "Perimeter = 2 \\(\\times\\) (length + breadth). So length + breadth = \\(20 \\div 2 = 10\\) cm. Length = \\(10 - 2 = 8\\) cm. Answer: 8 cm.",
      "hints": ["Half the perimeter equals length + breadth.", "Subtract the breadth (2 cm) from 10 cm."],
      "source": "Maha Bodhi 2025 P5 Weighted Assessment 1 Q6",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Rectangle figure is only a generic label diagram; both values are given in the text so no image is needed. Answer key: option 1 (8 cm)."
    },
    {
      "n": 7,
      "type_id": 1,
      "question": "Mrs Lim baked a total of 200 vanilla, chocolate and strawberry cupcakes. She had 20 more chocolate cupcakes than vanilla cupcakes but 40 fewer chocolate cupcakes than strawberry cupcakes. How many vanilla cupcakes did she bake?",
      "answer0": "40",
      "answer1": "60",
      "answer2": "120",
      "answer3": "140",
      "correct_answer": 0,
      "skill_id": 152,
      "difficulty_id": 2,
      "explanation": "Let vanilla = V. Chocolate = V + 20. Strawberry = chocolate + 40 = V + 60. Total: V + (V + 20) + (V + 60) = 200, so 3V + 80 = 200, 3V = 120, V = 40. Answer: 40.",
      "hints": ["Write chocolate and strawberry in terms of vanilla.", "Add the three expressions to 200 and solve for vanilla."],
      "source": "Maha Bodhi 2025 P5 Weighted Assessment 1 Q7",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Word problem. Answer key: option 1 (40)."
    },
    {
      "n": 8,
      "type_id": 1,
      "question": "There was a total of 72 fruits in 6 baskets. There was an equal number of fruits in each basket. Each basket contained some apples and 7 oranges. All the apples were taken out and repacked equally into packets of 3. How many packets of apples are there now? Choose the expression that represents the word problem.",
      "answer0": "\\(72 - 6 \\times 7 \\div 3\\)",
      "answer1": "\\(72 - (6 \\times 7) \\div 3\\)",
      "answer2": "\\((72 - 6 \\times 7) \\div 3\\)",
      "answer3": "\\(72 \\div 6 - 7 \\div 3\\)",
      "correct_answer": 2,
      "skill_id": 156,
      "difficulty_id": 2,
      "explanation": "Total oranges = 6 baskets \\(\\times\\) 7 = 42, so apples = 72 - 42 = 72 - (6 \\(\\times\\) 7). These apples are repacked into 3s, so number of packets = (72 - 6 \\(\\times\\) 7) \\(\\div\\) 3. The brackets are needed so the subtraction happens before dividing. Answer: option 3.",
      "hints": ["First find total oranges (6 \\(\\times\\) 7) and subtract from 72 to get apples.", "The whole apple count must be divided by 3, so it needs brackets."],
      "source": "Maha Bodhi 2025 P5 Weighted Assessment 1 Q8",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Order of operations / choose the expression. Answer key: option 3."
    },
    {
      "n": 9,
      "type_id": 1,
      "question": "The mass of Parcel A is \\(\\dfrac{3}{4}\\) kg. Parcel A weighs \\(\\dfrac{1}{6}\\) kg more than Parcel B. Find the total mass of Parcels A and B.",
      "answer0": "\\(\\dfrac{7}{12}\\) kg",
      "answer1": "\\(\\dfrac{11}{12}\\) kg",
      "answer2": "\\(1\\dfrac{1}{3}\\) kg",
      "answer3": "\\(1\\dfrac{3}{4}\\) kg",
      "correct_answer": 2,
      "skill_id": 160,
      "difficulty_id": 2,
      "explanation": "Parcel B = \\(\\dfrac{3}{4} - \\dfrac{1}{6} = \\dfrac{9}{12} - \\dfrac{2}{12} = \\dfrac{7}{12}\\) kg. Total = \\(\\dfrac{3}{4} + \\dfrac{7}{12} = \\dfrac{9}{12} + \\dfrac{7}{12} = \\dfrac{16}{12} = 1\\dfrac{1}{3}\\) kg. Answer: \\(1\\dfrac{1}{3}\\) kg.",
      "hints": ["Find Parcel B = \\(\\dfrac{3}{4} - \\dfrac{1}{6}\\).", "Add Parcel A and Parcel B, then simplify."],
      "source": "Maha Bodhi 2025 P5 Weighted Assessment 1 Q9",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Fraction/mixed-number answer -> MCQ. Answer key: option 3 (1 1/3 kg)."
    },
    {
      "n": 10,
      "type_id": 1,
      "question": "Molly had some money. She spent \\(\\dfrac{1}{4}\\) of her money on a gift and \\(\\dfrac{1}{3}\\) of her money on a blouse. She had $35 left. How much money did Molly have at first?",
      "answer0": "$49",
      "answer1": "$60",
      "answer2": "$70",
      "answer3": "$84",
      "correct_answer": 3,
      "skill_id": 175,
      "difficulty_id": 2,
      "explanation": "Fraction spent = \\(\\dfrac{1}{4} + \\dfrac{1}{3} = \\dfrac{3}{12} + \\dfrac{4}{12} = \\dfrac{7}{12}\\). Fraction left = \\(1 - \\dfrac{7}{12} = \\dfrac{5}{12}\\), which equals $35. So \\(\\dfrac{1}{12}\\) = \\(35 \\div 5 = 7\\), and the whole = \\(7 \\times 12 = 84\\). Answer: $84.",
      "hints": ["Add the two fractions spent, then find the fraction left.", "\\(\\dfrac{5}{12}\\) of the money is $35; find the whole."],
      "source": "Maha Bodhi 2025 P5 Weighted Assessment 1 Q10",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Fraction-of-money word problem. Answer key: option 4 ($84)."
    },
    {
      "n": 11,
      "type_id": 2,
      "question": "What is the first common multiple of 4 and 6?<br>Ans: [?]",
      "answer0": "12",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 115,
      "difficulty_id": 1,
      "explanation": "Multiples of 4: 4, 8, 12, ... Multiples of 6: 6, 12, ... The first (lowest) common multiple is 12. Answer: 12.",
      "hints": ["List the multiples of 4 and of 6.", "Find the smallest number that appears in both lists."],
      "source": "Maha Bodhi 2025 P5 Weighted Assessment 1 Q11",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Integer answer -> FIB. Answer key: 12."
    },
    {
      "n": 12,
      "type_id": 1,
      "question": "Find the product of \\(\\dfrac{4}{9}\\) and \\(\\dfrac{3}{2}\\). Give your answer as a fraction in the simplest form.",
      "answer0": "\\(\\dfrac{2}{3}\\)",
      "answer1": "\\(\\dfrac{12}{18}\\)",
      "answer2": "\\(\\dfrac{7}{11}\\)",
      "answer3": "\\(\\dfrac{6}{11}\\)",
      "correct_answer": 0,
      "skill_id": 161,
      "difficulty_id": 1,
      "explanation": "Multiply numerators and denominators: \\(\\dfrac{4}{9} \\times \\dfrac{3}{2} = \\dfrac{12}{18}\\). Simplify by dividing by 6: \\(\\dfrac{2}{3}\\). Answer: \\(\\dfrac{2}{3}\\).",
      "hints": ["Multiply the numerators together and the denominators together.", "Simplify \\(\\dfrac{12}{18}\\) to its lowest terms."],
      "source": "Maha Bodhi 2025 P5 Weighted Assessment 1 Q12",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Fraction answer -> MCQ (FIB cannot hold a fraction). Answer key: 2/3."
    },
    {
      "n": 13,
      "type_id": 1,
      "question": "A rope 20 m long is cut into 8 equal pieces. What is the length of each piece of rope? Give your answer as a mixed number.",
      "answer0": "\\(2\\dfrac{1}{2}\\) m",
      "answer1": "\\(2\\dfrac{1}{4}\\) m",
      "answer2": "\\(2\\dfrac{1}{8}\\) m",
      "answer3": "\\(1\\dfrac{1}{2}\\) m",
      "correct_answer": 0,
      "skill_id": 157,
      "difficulty_id": 1,
      "explanation": "Length of each piece = \\(20 \\div 8 = \\dfrac{20}{8} = \\dfrac{5}{2} = 2\\dfrac{1}{2}\\) m. Answer: \\(2\\dfrac{1}{2}\\) m.",
      "hints": ["Divide 20 by 8.", "Write the improper fraction \\(\\dfrac{20}{8}\\) as a mixed number in simplest form."],
      "source": "Maha Bodhi 2025 P5 Weighted Assessment 1 Q13",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Mixed-number answer -> MCQ (FIB cannot hold a mixed number). Answer key: 2 1/2."
    },
    {
      "n": 14,
      "type_id": 2,
      "question": "Zack is 11 years old. His mother is 37 years old. In how many years' time will his mother's age be twice his age?<br>Ans: [?]",
      "answer0": "15",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 152,
      "difficulty_id": 2,
      "explanation": "The age difference stays constant: \\(37 - 11 = 26\\) years. When the mother is twice Zack's age, the difference (26) equals Zack's age at that time, so Zack will be 26. That is \\(26 - 11 = 15\\) years from now. Answer: 15 years.",
      "hints": ["The age gap (26 years) never changes.", "When mother is twice Zack's age, Zack's age equals the gap; subtract his current age."],
      "source": "Maha Bodhi 2025 P5 Weighted Assessment 1 Q14",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Integer answer -> FIB. Answer key working: 37 - 11 = 26, 26 - 11 = 15."
    },
    {
      "n": 15,
      "type_id": 2,
      "question": "Bala read \\(\\dfrac{3}{8}\\) of a magazine on Monday and \\(\\dfrac{2}{5}\\) of the remainder on Tuesday. There were 56 pages in the magazine. How many pages did he read on Tuesday?<br>Ans: [?]",
      "answer0": "14",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 165,
      "difficulty_id": 2,
      "explanation": "Remainder after Monday = \\(1 - \\dfrac{3}{8} = \\dfrac{5}{8}\\). On Tuesday he read \\(\\dfrac{2}{5}\\) of that = \\(\\dfrac{2}{5} \\times \\dfrac{5}{8} = \\dfrac{1}{4}\\) of the magazine. Pages = \\(\\dfrac{1}{4} \\times 56 = 14\\). Answer: 14 pages.",
      "hints": ["Find the fraction of the whole magazine read on Tuesday: \\(\\dfrac{2}{5} \\times \\dfrac{5}{8}\\).", "Multiply that fraction by 56."],
      "source": "Maha Bodhi 2025 P5 Weighted Assessment 1 Q15",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Integer answer -> FIB. Answer key working: 5/8 x 2/5 = 1/4, 56 x 1/4 = 14."
    },
    {
      "n": 16,
      "type_id": 2,
      "question": "The figure is made up of a rectangle and a triangle. The length of the rectangle is 4 times its breadth. Find the area of the triangle.<br>Ans: [?] cm²",
      "answer0": "160",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 186,
      "difficulty_id": 2,
      "explanation": "The rectangle's length is 40 cm, so its breadth = \\(40 \\div 4 = 10\\) cm (which is the height of the triangle). The triangle's base = \\(40 - 8 = 32\\) cm. Area of triangle = \\(\\dfrac{1}{2} \\times 32 \\times 10 = 160\\) cm². Answer: 160 cm².",
      "hints": ["Breadth of rectangle = length \\(\\div\\) 4 = 10 cm; this is the triangle's height.", "Triangle base = 40 - 8 = 32 cm; area = \\(\\dfrac{1}{2} \\times 32 \\times 10\\)."],
      "source": "Maha Bodhi 2025 P5 Weighted Assessment 1 Q16",
      "image_needed": true,
      "image_options": false,
      "image_file": "q16.png",
      "image_page": 7,
      "image_bbox": [0.34, 0.15, 0.66, 0.27],
      "notes": "Integer answer -> FIB. Answer key working: 40 / 4 = 10, 40 - 8 = 32, 32 x 10 x 1/2 = 160 cm². Figure: rectangle 40 cm wide with a shaded triangle inside; the 8 cm marks the unshaded base portion."
    },
    {
      "n": 17,
      "type_id": 2,
      "question": "Madam Siti has some money. If she buys 12 plates, she will be short of $45. If she buys 9 plates, she will have $15 left. How much money does she have?<br>Ans: $[?]",
      "answer0": "195",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 152,
      "difficulty_id": 3,
      "explanation": "The difference in plates = \\(12 - 9 = 3\\) plates. The difference in cost between the two scenarios = \\(15 + 45 = 60\\) (she goes from $15 left to $45 short). So 1 plate = \\(60 \\div 3 = 20$\\). 9 plates cost \\(20 \\times 9 = 180\\); she has $15 left after that, so she has \\(180 + 15 = 195$\\). Answer: $195.",
      "hints": ["3 extra plates account for a $60 swing ($15 left to $45 short).", "Find the price of 1 plate, then money = cost of 9 plates + $15."],
      "source": "Maha Bodhi 2025 P5 Weighted Assessment 1 Q17",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": null,
      "image_bbox": null,
      "notes": "Integer/money answer -> FIB. Answer key working: 12 - 9 = 3, 15 + 45 = 60, 60 / 3 = 20, 20 x 9 = 180, 180 + 15 = $195."
    },
    {
      "n": 18,
      "type_id": 0,
      "question": "Figure A and Figure B are formed using 6 identical rectangles and 2 identical triangles. In Figure B, two of the rectangles overlap at X. The length of each rectangle is three times its breadth. Both the length and breadth of the rectangle are whole numbers. Each statement is either true, false or not possible to tell from the information given. Put a tick to indicate your answer.<br>(a) The area of the triangle is 5 times the area of each rectangle.<br>(b) Both Figure A and Figure B have the same perimeter.<br>(c) One possible difference between the area of Figure A and the area of Figure B is 6 units².",
      "answer0": null,
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 138,
      "difficulty_id": 3,
      "explanation": "Per the answer key: (a) False; (b) True; (c) False. With length = 3 \\(\\times\\) breadth, each rectangle has area 3b² (b = breadth). The triangle is formed from the same composite; comparisons against the listed statements give False, True, False respectively.",
      "hints": ["Set breadth = b, length = 3b, and compute rectangle area 3b².", "Compare perimeters and possible area differences for the two arrangements."],
      "source": "Maha Bodhi 2025 P5 Weighted Assessment 1 Q18",
      "image_needed": true,
      "image_options": false,
      "image_file": "q18.png",
      "image_page": 8,
      "image_bbox": [0.27, 0.17, 0.80, 0.42],
      "notes": "True/False/Not-possible-to-tell tick table -> interactive format with no app question type, set type_id 0 (skipped on insert). Answer key: (a) False, (b) True, (c) False."
    }
  ]
}