{
  "title": "Chance and Probability - Grade 7 ICSE",
  "total_questions": 60,
  "questions": [
    {
      "id": 1,
      "difficulty": "easy",
      "question": "Tossing a coin, probability of getting head? 🍎",
      "options": { "A": "0", "B": "1/2", "C": "1", "D": "2" },
      "correct_answer": "B"
    },
    {
      "id": 2,
      "difficulty": "easy",
      "question": "What is probability of sure event? 🎈",
      "options": { "A": "0", "B": "1/2", "C": "1", "D": "2" },
      "correct_answer": "C"
    },
    {
      "id": 3,
      "difficulty": "easy",
      "question": "Probability of impossible event? 🍭",
      "options": { "A": "0", "B": "1", "C": "1/2", "D": "2" },
      "correct_answer": "A"
    },
    {
      "id": 4,
      "difficulty": "easy",
      "question": "Rolling a die, P(getting 7) = ? 🎯",
      "options": { "A": "0", "B": "1/6", "C": "1", "D": "7/6" },
      "correct_answer": "A"
    },
    {
      "id": 5,
      "difficulty": "easy",
      "question": "From Monday to Sunday, chance of Sunday? 🧸",
      "options": { "A": "1", "B": "1/7", "C": "7", "D": "0" },
      "correct_answer": "B"
    },
    {
      "id": 6,
      "difficulty": "easy",
      "question": "P(event) can never be ______ 🚀",
      "options": { "A": "0", "B": "1", "C": "1.5", "D": "0.5" },
      "correct_answer": "C"
    },
    {
      "id": 7,
      "difficulty": "easy",
      "question": "Bag has 1 red, 1 blue ball. P(red) = ? 🧩",
      "options": { "A": "0", "B": "1/2", "C": "1", "D": "2" },
      "correct_answer": "B"
    },
    {
      "id": 8,
      "difficulty": "easy",
      "question": "Sun rising tomorrow: Probability? 🎨",
      "options": { "A": "0", "B": "1/2", "C": "1", "D": "Cannot say" },
      "correct_answer": "C"
    },
    {
      "id": 9,
      "difficulty": "medium",
      "question": "P(number divisible by 2 or 3 on die) = ? 🥁",
      "options": {
        "A": "1/6",
        "B": "1/2",
        "C": "2/3",
        "D": "5/6"
      },
      "correct_answer": "C"
    },
    {
      "id": 10,
      "difficulty": "easy",
      "question": "Month having 32 days: Chance? 🎭",
      "options": { "A": "0", "B": "1", "C": "1/2", "D": "1/12" },
      "correct_answer": "A"
    },
    {
      "id": 11,
      "difficulty": "easy",
      "question": "Week starting with 'T': Probability? 🦋",
      "options": { "A": "1/7", "B": "2/7", "C": "3/7", "D": "4/7" },
      "correct_answer": "B"
    },
    {
      "id": 12,
      "difficulty": "easy",
      "question": "P(getting 1 on die) = ? 🏀",
      "options": { "A": "0", "B": "1/6", "C": "5/6", "D": "1" },
      "correct_answer": "B"
    },
    {
      "id": 13,
      "difficulty": "easy",
      "question": "Certain event probability? 🍪",
      "options": { "A": "0", "B": "0.5", "C": "1", "D": "2" },
      "correct_answer": "C"
    },
    {
      "id": 14,
      "difficulty": "easy",
      "question": "From alphabets, P(vowel) = ? 🧸",
      "options": { "A": "1/26", "B": "5/26", "C": "21/26", "D": "1/5" },
      "correct_answer": "B"
    },
    {
      "id": 15,
      "difficulty": "easy",
      "question": "Tomorrow is Monday: Probability? 🍩",
      "options": { "A": "0", "B": "1/7", "C": "6/7", "D": "1" },
      "correct_answer": "B"
    },
    {
      "id": 16,
      "difficulty": "easy",
      "question": "P(not getting head on coin) = ? 🪁",
      "options": { "A": "0", "B": "1/2", "C": "1", "D": "2" },
      "correct_answer": "B"
    },
    {
      "id": 17,
      "difficulty": "easy",
      "question": "Probability range? 🐛",
      "options": {
        "A": "0 to 1",
        "B": "-1 to 1",
        "C": "0 to 10",
        "D": "0 to 100"
      },
      "correct_answer": "A"
    },
    {
      "id": 18,
      "difficulty": "easy",
      "question": "P(prime number on die) = ? 🌼",
      "options": { "A": "1/2", "B": "1/3", "C": "2/3", "D": "1/6" },
      "correct_answer": "A"
    },
    {
      "id": 19,
      "difficulty": "easy",
      "question": "India winning cricket match: Chance? 🎠",
      "options": { "A": "0", "B": "1", "C": "Between 0 & 1", "D": "2" },
      "correct_answer": "C"
    },
    {
      "id": 20,
      "difficulty": "easy",
      "question": "P(number >6 on die) = ? 🥇",
      "options": { "A": "0", "B": "1/6", "C": "5/6", "D": "1" },
      "correct_answer": "A"
    },
    {
      "id": 21,
      "difficulty": "medium",
      "question": "Bag: 3 red, 2 blue balls. P(red) = ? 🦉",
      "options": { "A": "2/5", "B": "3/5", "C": "1/5", "D": "3/2" },
      "correct_answer": "B"
    },
    {
      "id": 22,
      "difficulty": "medium",
      "question": "Die rolled, P(number < 4) = ? 🌈",
      "options": { "A": "1/2", "B": "1/3", "C": "2/3", "D": "1/6" },
      "correct_answer": "A"
    },
    {
      "id": 23,
      "difficulty": "medium",
      "question": "Cards: 52, P(heart) = ? 🧮",
      "options": { "A": "1/52", "B": "1/13", "C": "1/4", "D": "13/52" },
      "correct_answer": "C"
    },
    {
      "id": 24,
      "difficulty": "medium",
      "question": "Month having 30 days: Probability? 🚴",
      "options": { "A": "1/12", "B": "4/12", "C": "7/12", "D": "5/12" },
      "correct_answer": "B"
    },
    {
      "id": 25,
      "difficulty": "medium",
      "question": "P(vowel from 'MATHEMATICS') = ? 🍉",
      "options": { "A": "4/11", "B": "3/11", "C": "7/11", "D": "5/11" },
      "correct_answer": "A"
    },
    {
      "id": 26,
      "difficulty": "medium",
      "question": "Bag: 5 green, 3 yellow. P(not green) = ? 🏓",
      "options": { "A": "5/8", "B": "3/8", "C": "1/8", "D": "3/5" },
      "correct_answer": "B"
    },
    {
      "id": 27,
      "difficulty": "medium",
      "question": "Two coins tossed, P(both heads) = ? 🎸",
      "options": { "A": "1/2", "B": "1/4", "C": "3/4", "D": "1" },
      "correct_answer": "B"
    },
    {
      "id": 28,
      "difficulty": "medium",
      "question": "P(getting multiple of 3 on die) = ? 🧭",
      "options": { "A": "1/3", "B": "1/2", "C": "2/3", "D": "1/6" },
      "correct_answer": "A"
    },
    {
      "id": 29,
      "difficulty": "medium",
      "question": "0.75 probability means event is? 🥨",
      "options": {
        "A": "Impossible",
        "B": "Certain",
        "C": "Likely",
        "D": "Unlikely"
      },
      "correct_answer": "C"
    },
    {
      "id": 30,
      "difficulty": "medium",
      "question": "Birthday in February (non-leap): P = ? 🎪",
      "options": { "A": "1/12", "B": "28/365", "C": "29/365", "D": "31/365" },
      "correct_answer": "B"
    },
    {
      "id": 31,
      "difficulty": "medium",
      "question": "P(consonant from 'PROBABILITY') = ? 🍕",
      "options": {
        "A": "7/11",
        "B": "4/11",
        "C": "6/11",
        "D": "5/11"
      },
      "correct_answer": "A"
    },
    {
      "id": 32,
      "difficulty": "medium",
      "question": "Two dice, P(sum = 7) = ? ⚽",
      "options": { "A": "1/6", "B": "1/12", "C": "1/36", "D": "6/36" },
      "correct_answer": "D"
    },
    {
      "id": 33,
      "difficulty": "medium",
      "question": "0.2 probability means event is ______ 🍯",
      "options": {
        "A": "Very likely",
        "B": "Unlikely",
        "C": "Certain",
        "D": "Impossible"
      },
      "correct_answer": "B"
    },
    {
      "id": 34,
      "difficulty": "medium",
      "question": "Bag: 8 marbles (3 blue). P(not blue) = ? 🪐",
      "options": { "A": "3/8", "B": "5/8", "C": "8/3", "D": "3/5" },
      "correct_answer": "B"
    },
    {
      "id": 35,
      "difficulty": "medium",
      "question": "P(letter from 'A' to 'Z' is 'Z') = ? 🎁",
      "options": { "A": "1/26", "B": "25/26", "C": "1/25", "D": "0" },
      "correct_answer": "A"
    },
    {
      "id": 36,
      "difficulty": "medium",
      "question": "Month having 'r' in name: Probability? 🍬",
      "options": { "A": "1/12", "B": "8/12", "C": "4/12", "D": "7/12" },
      "correct_answer": "B"
    },
    {
      "id": 37,
      "difficulty": "medium",
      "question": "Die rolled, P(prime or even) = ? 🎷",
      "options": { "A": "1/2", "B": "2/3", "C": "5/6", "D": "1/3" },
      "correct_answer": "C"
    },
    {
      "id": 38,
      "difficulty": "medium",
      "question": "Probability 0.01 means event is ______ 🛸",
      "options": {
        "A": "Certain",
        "B": "Very unlikely",
        "C": "Likely",
        "D": "Impossible"
      },
      "correct_answer": "B"
    },
    {
      "id": 9,
      "difficulty": "medium",
      "question": "P(number divisible by 2 or 3 on die) = ? 🥁",
      "options": { "A": "1/6", "B": "1/2", "C": "2/3", "D": "5/6" },
      "correct_answer": "D"
    },
    {
      "id": 40,
      "difficulty": "medium",
      "question": "Cards: P(not a face card) = ? 🍍",
      "options": { "A": "12/52", "B": "16/52", "C": "40/52", "D": "10/52" },
      "correct_answer": "C"
    },
    {
      "id": 41,
      "difficulty": "hard",
      "question": "Two coins, P(at least one head) = ? 🧩🔥",
      "options": { "A": "1/4", "B": "1/2", "C": "3/4", "D": "1" },
      "correct_answer": "C"
    },
    {
      "id": 42,
      "difficulty": "hard",
      "question": "Bag: 4 red, 5 blue, 6 green. P(red or blue) = ? 🚀🌟",
      "options": { "A": "9/15", "B": "10/15", "C": "4/15", "D": "5/15" },
      "correct_answer": "A"
    },
    {
      "id": 43,
      "difficulty": "hard",
      "question": "Probability it will rain tomorrow is 0.85. P(not rain) = ? 🏆🎯",
      "options": { "A": "0.15", "B": "0.85", "C": "1", "D": "0" },
      "correct_answer": "A"
    },
    {
      "id": 44,
      "difficulty": "hard",
      "question": "Two dice, P(sum = 8) = ? 🧠💡",
      "options": { "A": "1/36", "B": "5/36", "C": "6/36", "D": "8/36" },
      "correct_answer": "B"
    },
    {
      "id": 45,
      "difficulty": "hard",
      "question": "P(letter from 'EDUCATION' is vowel) = ? 🧸📐",
      "options": { "A": "4/9", "B": "5/9", "C": "3/9", "D": "6/9" },
      "correct_answer": "B"
    },
    {
      "id": 46,
      "difficulty": "hard",
      "question": "Month with 31 days: P(randomly chosen) = ? 🍕🤔",
      "options": { "A": "5/12", "B": "6/12", "C": "7/12", "D": "8/12" },
      "correct_answer": "C"
    },
    {
      "id": 47,
      "difficulty": "hard",
      "question": "Bag: 10 balls (x red). P(red)=0.3. x = ? 🏦📊",
      "options": { "A": "3", "B": "5", "C": "7", "D": "10" },
      "correct_answer": "A"
    },
    {
      "id": 48,
      "difficulty": "hard",
      "question": "P(getting doublet with two dice) = ? 🎨🎭",
      "options": { "A": "1/6", "B": "1/12", "C": "1/36", "D": "6/36" },
      "correct_answer": "D"
    },
    {
      "id": 49,
      "difficulty": "hard",
      "question": "Probability of passing test is 4/5. P(failing) = ? 🍦🔢",
      "options": { "A": "1/5", "B": "4/5", "C": "0", "D": "1" },
      "correct_answer": "A"
    },
    {
      "id": 50,
      "difficulty": "hard",
      "question": "Cards: P(ace or king) = ? 🪁🧵",
      "options": { "A": "1/13", "B": "2/13", "C": "4/52", "D": "8/52" },
      "correct_answer": "D"
    },
    {
      "id": 51,
      "difficulty": "hard",
      "question": "P(number between 1 & 100 divisible by 6) ≈ ? 🌌✨",
      "options": { "A": "0.06", "B": "0.16", "C": "0.6", "D": "0.016" },
      "correct_answer": "B"
    },
    {
      "id": 52,
      "difficulty": "hard",
      "question": "Two events each P=0.4. Max P(both occur)? 🚴‍♂️📉",
      "options": { "A": "0.4", "B": "0.8", "C": "0.16", "D": "1" },
      "correct_answer": "A"
    },
    {
      "id": 53,
      "difficulty": "hard",
      "question": "Die rolled twice, P(both same number) = ? 🍯🎲",
      "options": { "A": "1/6", "B": "1/12", "C": "1/36", "D": "6/36" },
      "correct_answer": "D"
    },
    {
      "id": 54,
      "difficulty": "hard",
      "question": "Bag: 12 balls, P(red)=1/3. If 2 more red added, new P(red) = ? 🧮🧩",
      "options": { "A": "1/2", "B": "5/14", "C": "6/14", "D": "7/14" },
      "correct_answer": "C"
    },
    {
      "id": 55,
      "difficulty": "hard",
      "question": "P(random day of week is weekend) = ? 🥨🔑",
      "options": { "A": "1/7", "B": "2/7", "C": "5/7", "D": "0" },
      "correct_answer": "B"
    },
    {
      "id": 56,
      "difficulty": "hard",
      "question": "Probability of event A is 0.7, B is 0.5. Max P(A or B)? 🎸🎶",
      "options": { "A": "0.7", "B": "1", "C": "1.2", "D": "0.5" },
      "correct_answer": "B"
    },
    {
      "id": 57,
      "difficulty": "hard",
      "question": "Month with 'ber' at end: Probability? 🍉⚖️",
      "options": { "A": "1/12", "B": "3/12", "C": "4/12", "D": "5/12" },
      "correct_answer": "C"
    },
    {
      "id": 58,
      "difficulty": "hard",
      "question": "If P(rain)=0.3, P(not rain) for 2 consecutive days? 🍍🏁",
      "options": { "A": "0.09", "B": "0.7", "C": "0.49", "D": "0.3" },
      "correct_answer": "C"
    },
    {
      "id": 59,
      "difficulty": "hard",
      "question": "P(selecting leap year from 2000-2020) = ? 🪐🧠",
      "options": { "A": "5/21", "B": "6/21", "C": "7/21", "D": "8/21" },
      "correct_answer": "B"
    },
    {
      "id": 60,
      "difficulty": "hard",
      "question": "Two dice, P(sum is prime number) = ? 🏀🎭",
      "options": { "A": "15/36", "B": "18/36", "C": "12/36", "D": "10/36" },
      "correct_answer": "A"
    }
  ]
}