{
  "paper": {
    "school": "Catholic High",
    "year": 2022,
    "level": "P1",
    "label": "CP5",
    "source_prefix": "Catholic High 2022 P1 CP5",
    "has_answer_key": true
  },
  "questions": [
    {
      "n": 1,
      "type_id": 1,
      "question": "Look at the clock.\nWhich of the following statements is true?",
      "answer0": "The time is 6 o'clock.",
      "answer1": "The time is 12 o'clock.",
      "answer2": "The time is half past 1.",
      "answer3": "The time is half past 12.",
      "correct_answer": 3,
      "skill_id": 24,
      "difficulty_id": 1,
      "explanation": "The hour hand is between 12 and 1 and the minute hand points to 6, so the time is half past 12.",
      "hints": ["When the minute hand points to 6, it is 'half past' the hour.", "The hour hand sits just after 12, so the hour is 12."],
      "source": "Catholic High 2022 P1 CP5 Q1",
      "image_needed": true,
      "image_options": false,
      "image_file": "q1.png",
      "notes": "Needs clock face image. Answer key Q1 = option 4 (half past 12)."
    },
    {
      "n": 2,
      "type_id": 1,
      "question": "The table shows Samy's timetable every Saturday.\n| Time | Activity |\n| half past 9 | Breakfast |\n| ? | Swimming lesson |\n| 12 noon | Lunch |\n| 2 o'clock | Piano lesson |\nWhich of the following clock shows the time that he has his swimming lesson?",
      "answer0": "Clock 1",
      "answer1": "Clock 2",
      "answer2": "Clock 3",
      "answer3": "Clock 4",
      "correct_answer": 1,
      "skill_id": 24,
      "difficulty_id": 2,
      "explanation": "Swimming is after breakfast (half past 9) and before lunch (12 noon). The correct clock (option 2) shows half past 10, which fits between these two times.",
      "hints": ["The swimming time must come after half past 9 but before 12 noon.", "Read each clock and pick the one showing a time in that range."],
      "source": "Catholic High 2022 P1 CP5 Q2",
      "image_needed": true,
      "image_options": true,
      "image_file": null,
      "notes": "Image-option MCQ: the four options are clock faces (q2_opt0.png .. q2_opt3.png). The timetable table also appears in the stem. Answer key Q2 = option 2 (half past 10)."
    },
    {
      "n": 3,
      "type_id": 1,
      "question": "What is the total amount of money shown?",
      "answer0": "40¢",
      "answer1": "46¢",
      "answer2": "55¢",
      "answer3": "60¢",
      "correct_answer": 2,
      "skill_id": 21,
      "difficulty_id": 1,
      "explanation": "The coins are 20¢ + 20¢ + 10¢ + 5¢ = 55¢.",
      "hints": ["Add up the value printed on each coin.", "20 + 20 + 10 + 5 = ?"],
      "source": "Catholic High 2022 P1 CP5 Q3",
      "image_needed": true,
      "image_options": false,
      "image_file": "q3.png",
      "notes": "Needs coin image (20c, 20c, 10c, 5c). Answer key Q3 = option 3 (55c)."
    },
    {
      "n": 4,
      "type_id": 1,
      "question": "Mili has 15¢ in her wallet.\nHow much more money does Mili need if she wants to buy a pencil?",
      "answer0": "45¢",
      "answer1": "55¢",
      "answer2": "65¢",
      "answer3": "75¢",
      "correct_answer": 0,
      "skill_id": 22,
      "difficulty_id": 2,
      "explanation": "The pencil costs 60¢ and Mili has 15¢, so she needs 60¢ − 15¢ = 45¢ more.",
      "hints": ["The price tag on the pencil shows 60¢.", "Subtract the money she has from the price: 60 − 15."],
      "source": "Catholic High 2022 P1 CP5 Q4",
      "image_needed": true,
      "image_options": false,
      "image_file": "q4.png",
      "notes": "Needs pencil-with-price-tag image (60c tag). Answer key Q4 = option 1 (45c)."
    },
    {
      "n": 5,
      "type_id": 1,
      "question": "Which of the following sets of coins are needed by Ali to exchange with $1?",
      "answer0": "Set 1",
      "answer1": "Set 2",
      "answer2": "Set 3",
      "answer3": "Set 4",
      "correct_answer": 3,
      "skill_id": 21,
      "difficulty_id": 2,
      "explanation": "$1 = 100¢. The correct set (option 4) is the group of coins whose values add up to 100¢.",
      "hints": ["$1 is the same as 100¢.", "Add the coins in each set and find the one that totals 100¢."],
      "source": "Catholic High 2022 P1 CP5 Q5",
      "image_needed": true,
      "image_options": true,
      "image_file": null,
      "notes": "Image-option MCQ: four sets of coins (q5_opt0.png .. q5_opt3.png). Answer key Q5 = option 4. Coin denominations in the scan are blurry/hard to decipher; the printed amounts as read did not obviously sum to $1, so verify each coin set against the key when cropping."
    },
    {
      "n": 6,
      "type_id": 1,
      "question": "Sumei has $12 in her wallet.\nWhich of the following shows what she has in her wallet?",
      "answer0": "Set 1",
      "answer1": "Set 2",
      "answer2": "Set 3",
      "answer3": "Set 4",
      "correct_answer": 0,
      "skill_id": 21,
      "difficulty_id": 2,
      "explanation": "$12 is made up of one $10 note and one $2 note (option 1).",
      "hints": ["$12 = $10 + $2.", "Find the set of notes and coins that adds up to exactly $12."],
      "source": "Catholic High 2022 P1 CP5 Q6",
      "image_needed": true,
      "image_options": true,
      "image_file": null,
      "notes": "Image-option MCQ: four sets of notes/coins (q6_opt0.png .. q6_opt3.png). Answer key Q6 = option 1. Note images in the scan are blurry; verify each option against the key when cropping."
    },
    {
      "n": 7,
      "type_id": 0,
      "question": "Circle the correct number of coins to make 70¢.",
      "answer0": null,
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 21,
      "difficulty_id": 2,
      "explanation": "Circle a 20¢ coin and a 50¢ coin: 20¢ + 50¢ = 70¢.",
      "hints": ["You need coins that add up to 70¢.", "20¢ + 50¢ = 70¢."],
      "source": "Catholic High 2022 P1 CP5 Q7",
      "image_needed": true,
      "image_options": false,
      "image_file": "q7.png",
      "notes": "Non-standard 'circle the coins' format (type_id 0). A row of coins is shown to circle. Answer key Q7 = circle the 20¢ and 50¢ coins (20c + 50c = 70c)."
    },
    {
      "n": 8,
      "type_id": 2,
      "question": "Mrs Tan has $90.\nShe buys a dress for $58.\nHow much money does she have left?\n[?] − [?] = [?]\nMrs Tan has $[?] left.",
      "answer0": "90",
      "answer1": "58",
      "answer2": "32",
      "answer3": "32",
      "correct_answer": null,
      "skill_id": 15,
      "difficulty_id": 2,
      "explanation": "Money left = $90 − $58 = $32.",
      "hints": ["Subtract the cost of the dress from the money she started with.", "90 − 58 = ?"],
      "source": "Catholic High 2022 P1 CP5 Q8",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "1-step subtraction word problem (Section B, 2 marks). Answer key Q8: 90 − 58 = 32, Mrs Tan has $32 left."
    }
  ]
}
