{
  "title": "Median and Mode - Grade 7 ICSE",
  "total_questions": 60,
  "questions": [
    {
      "id": 1,
      "difficulty": "easy",
      "question": "Find mode of: 2, 3, 2, 4, 2 🍎",
      "options": { "A": "2", "B": "3", "C": "4", "D": "5" },
      "correct_answer": "A"
    },
    {
      "id": 2,
      "difficulty": "easy",
      "question": "Median of: 1, 3, 5, 7, 9 🎈",
      "options": { "A": "1", "B": "5", "C": "7", "D": "9" },
      "correct_answer": "B"
    },
    {
      "id": 3,
      "difficulty": "easy",
      "question": "Mode means most ______ value 🍭",
      "options": {
        "A": "frequent",
        "B": "middle",
        "C": "average",
        "D": "large"
      },
      "correct_answer": "A"
    },
    {
      "id": 4,
      "difficulty": "easy",
      "question": "Data: 4, 8, 6, 4. Mode? 🎯",
      "options": { "A": "4", "B": "6", "C": "8", "D": "No mode" },
      "correct_answer": "A"
    },
    {
      "id": 5,
      "difficulty": "easy",
      "question": "Median of: 10, 20, 30 🧸",
      "options": { "A": "10", "B": "20", "C": "30", "D": "25" },
      "correct_answer": "B"
    },
    {
      "id": 6,
      "difficulty": "easy",
      "question": "Find mode: 7, 7, 8, 9, 7 🚀",
      "options": { "A": "7", "B": "8", "C": "9", "D": "7 & 8" },
      "correct_answer": "A"
    },
    {
      "id": 7,
      "difficulty": "easy",
      "question": "Median of even count data is ______ of middle two 🧩",
      "options": {
        "A": "sum",
        "B": "difference",
        "C": "average",
        "D": "product"
      },
      "correct_answer": "C"
    },
    {
      "id": 8,
      "difficulty": "easy",
      "question": "Data: 5, 6, 7, 8, 9, 10. Median? 🎨",
      "options": { "A": "6", "B": "7", "C": "7.5", "D": "8" },
      "correct_answer": "C"
    },
    {
      "id": 9,
      "difficulty": "easy",
      "question": "Mode of: 1, 2, 3, 4, 5 🍦",
      "options": { "A": "1", "B": "3", "C": "5", "D": "No mode" },
      "correct_answer": "D"
    },
    {
      "id": 10,
      "difficulty": "easy",
      "question": "Median position for n=7 is ______ th term 🎭",
      "options": { "A": "3rd", "B": "4th", "C": "3.5th", "D": "5th" },
      "correct_answer": "B"
    },
    {
      "id": 11,
      "difficulty": "easy",
      "question": "Find mode: 0, 1, 0, 2, 0 🦋",
      "options": { "A": "0", "B": "1", "C": "2", "D": "0 & 1" },
      "correct_answer": "A"
    },
    {
      "id": 12,
      "difficulty": "easy",
      "question": "Median of: 100, 200, 300, 400 🏀",
      "options": { "A": "200", "B": "250", "C": "300", "D": "200 & 300" },
      "correct_answer": "B"
    },
    {
      "id": 13,
      "difficulty": "easy",
      "question": "Data can have ______ mode(s) 🍪",
      "options": {
        "A": "only one",
        "B": "only two",
        "C": "multiple",
        "D": "none"
      },
      "correct_answer": "C"
    },
    {
      "id": 14,
      "difficulty": "easy",
      "question": "Find mode: 3, 4, 3, 4, 3, 4 🧸",
      "options": { "A": "3", "B": "4", "C": "3 & 4", "D": "No mode" },
      "correct_answer": "C"
    },
    {
      "id": 15,
      "difficulty": "easy",
      "question": "Median of: 12, 14, 16, 18, 20 🍩",
      "options": { "A": "14", "B": "16", "C": "18", "D": "15" },
      "correct_answer": "B"
    },
    {
      "id": 16,
      "difficulty": "easy",
      "question": "For mode, data must be arranged? 🪁",
      "options": { "A": "Yes", "B": "No", "C": "Sometimes", "D": "Descending" },
      "correct_answer": "B"
    },
    {
      "id": 17,
      "difficulty": "easy",
      "question": "Find mode: 5, 5, 5, 5 🐛",
      "options": { "A": "5", "B": "10", "C": "20", "D": "No mode" },
      "correct_answer": "A"
    },
    {
      "id": 18,
      "difficulty": "easy",
      "question": "Median of: 6, 8, 10, 12, 14, 16 🌼",
      "options": { "A": "10", "B": "11", "C": "12", "D": "10 & 12" },
      "correct_answer": "B"
    },
    {
      "id": 19,
      "difficulty": "easy",
      "question": "Mode of all different values is? 🎠",
      "options": {
        "A": "first value",
        "B": "last value",
        "C": "no mode",
        "D": "middle value"
      },
      "correct_answer": "C"
    },
    {
      "id": 20,
      "difficulty": "easy",
      "question": "Median position for n=9 is ______ th term 🥇",
      "options": { "A": "4th", "B": "5th", "C": "4.5th", "D": "6th" },
      "correct_answer": "B"
    },
    {
      "id": 21,
      "difficulty": "medium",
      "question": "Find median: 2, 5, 8, 11, 14, 17, 20 🦉",
      "options": { "A": "8", "B": "11", "C": "14", "D": "12.5" },
      "correct_answer": "B"
    },
    {
      "id": 22,
      "difficulty": "medium",
      "question": "Mode of: 1, 3, 5, 3, 7, 3, 9, 5 🌈",
      "options": { "A": "3", "B": "5", "C": "3 & 5", "D": "7" },
      "correct_answer": "A"
    },
    {
      "id": 23,
      "difficulty": "medium",
      "question": "Median of: 21, 23, 25, 27, 29, 31 🧮",
      "options": { "A": "25", "B": "26", "C": "27", "D": "25 & 27" },
      "correct_answer": "B"
    },
    {
      "id": 24,
      "difficulty": "medium",
      "question": "Find mode: 10, 15, 20, 15, 25, 20, 15 🚴",
      "options": { "A": "15", "B": "20", "C": "15 & 20", "D": "25" },
      "correct_answer": "A"
    },
    {
      "id": 25,
      "difficulty": "medium",
      "question": "Data: 4, 6, 8, x, 12, 14. Median=9. x=? 🍉",
      "options": { "A": "8", "B": "9", "C": "10", "D": "11" },
      "correct_answer": "C"
    },
    {
      "id": 26,
      "difficulty": "medium",
      "question": "Mode of: 2.5, 3.0, 2.5, 3.5, 2.5, 4.0 🏓",
      "options": { "A": "2.5", "B": "3.0", "C": "3.5", "D": "4.0" },
      "correct_answer": "A"
    },
    {
      "id": 27,
      "difficulty": "medium",
      "question": "Median of first 10 natural numbers 🎸",
      "options": { "A": "5", "B": "5.5", "C": "6", "D": "6.5" },
      "correct_answer": "B"
    },
    {
      "id": 28,
      "difficulty": "medium",
      "question": "Find mode: 100, 101, 100, 102, 100, 103 🧭",
      "options": { "A": "100", "B": "101", "C": "102", "D": "103" },
      "correct_answer": "A"
    },
    {
      "id": 29,
      "difficulty": "medium",
      "question": "Data: 7, 9, 11, 13, 15, 17, 19, 21. Median? 🥨",
      "options": { "A": "13", "B": "14", "C": "15", "D": "13 & 15" },
      "correct_answer": "B"
    },
    {
      "id": 30,
      "difficulty": "medium",
      "question": "Mode of: a, b, a, c, a, d, b 🎪",
      "options": { "A": "a", "B": "b", "C": "c", "D": "a & b" },
      "correct_answer": "A"
    },
    {
      "id": 31,
      "difficulty": "medium",
      "question": "Find median: 0.5, 1.0, 1.5, 2.0, 2.5, 3.0 🍕",
      "options": { "A": "1.5", "B": "1.75", "C": "2.0", "D": "1.5 & 2.0" },
      "correct_answer": "B"
    },
    {
      "id": 32,
      "difficulty": "medium",
      "question": "Data: 8, 12, 6, 4, 10. Arrange for median: ⚽",
      "options": {
        "A": "4,6,8,10,12",
        "B": "12,10,8,6,4",
        "C": "as given",
        "D": "any order"
      },
      "correct_answer": "A"
    },
    {
      "id": 33,
      "difficulty": "medium",
      "question": "Mode of: 1/2, 1/4, 1/2, 3/4, 1/2 🍯",
      "options": { "A": "1/2", "B": "1/4", "C": "3/4", "D": "1" },
      "correct_answer": "A"
    },
    {
      "id": 34,
      "difficulty": "medium",
      "question": "Median of first 5 even numbers 🪐",
      "options": { "A": "4", "B": "5", "C": "6", "D": "7" },
      "correct_answer": "C"
    },
    {
      "id": 35,
      "difficulty": "medium",
      "question": "Find mode: 25, 30, 25, 35, 40, 25, 30 🎁",
      "options": { "A": "25", "B": "30", "C": "35", "D": "25 & 30" },
      "correct_answer": "A"
    },
    {
      "id": 36,
      "difficulty": "medium",
      "question": "Data: x, 5, 7, 9, 11. Median=7. x=? 🍬",
      "options": {
        "A": "5",
        "B": "6",
        "C": "8",
        "D": "9"
      },
      "correct_answer": "A"
    },
    {
      "id": 37,
      "difficulty": "medium",
      "question": "Mode of: 0, 0, 1, 1, 2, 2, 3, 3 🎷",
      "options": { "A": "0", "B": "1", "C": "2", "D": "no mode" },
      "correct_answer": "D"
    },
    {
      "id": 38,
      "difficulty": "medium",
      "question": "Median of: 12, 14, 16, 18, 20, 22, 24, 26 🛸",
      "options": { "A": "18", "B": "19", "C": "20", "D": "18 & 20" },
      "correct_answer": "B"
    },
    {
      "id": 39,
      "difficulty": "medium",
      "question": "Find mode: red, blue, red, green, blue, red 🥁",
      "options": { "A": "red", "B": "blue", "C": "green", "D": "red & blue" },
      "correct_answer": "A"
    },
    {
      "id": 40,
      "difficulty": "medium",
      "question": "Data: 3, 7, 2, 9, 5. Median after arranging? 🍍",
      "options": { "A": "3", "B": "5", "C": "7", "D": "9" },
      "correct_answer": "B"
    },
    {
      "id": 41,
      "difficulty": "hard",
      "question": "Find median: 41, 43, 47, 53, 59, 61, 67 🧩🔥",
      "options": { "A": "53", "B": "55", "C": "56", "D": "59" },
      "correct_answer": "A"
    },
    {
      "id": 42,
      "difficulty": "hard",
      "question": "Mode of: 2, 3, 4, 2, 5, 6, 2, 3, 7, 3 🚀🌟",
      "options": { "A": "2", "B": "3", "C": "2 & 3", "D": "4" },
      "correct_answer": "C"
    },
    {
      "id": 43,
      "difficulty": "hard",
      "question": "Data: 15, 20, 25, 30, x, 40, 45. Median=30. x=? 🏆🎯",
      "options": {
        "A": "20",
        "B": "25",
        "C": "35",
        "D": "15"
      },
      "correct_answer": "C"
    },
    {
      "id": 44,
      "difficulty": "hard",
      "question": "Find mode: 1.2, 1.5, 1.2, 1.8, 1.5, 1.2, 1.5 🧠💡",
      "options": { "A": "1.2", "B": "1.5", "C": "1.2 & 1.5", "D": "1.8" },
      "correct_answer": "C"
    },
    {
      "id": 45,
      "difficulty": "hard",
      "question": "Median of first 15 whole numbers 🧸📐",
      "options": { "A": "7", "B": "7.5", "C": "8", "D": "8.5" },
      "correct_answer": "A"
    },
    {
      "id": 46,
      "difficulty": "hard",
      "question": "Data: 10, 12, 14, 16, 18, 20, 22, 24, 26. Median? 🍕🤔",
      "options": { "A": "16", "B": "18", "C": "20", "D": "19" },
      "correct_answer": "B"
    },
    {
      "id": 47,
      "difficulty": "hard",
      "question": "Mode of: 0, 1, 1, 2, 3, 0, 1, 2, 1, 0 🏦📊",
      "options": { "A": "0", "B": "1", "C": "2", "D": "0 & 1" },
      "correct_answer": "B"
    },
    {
      "id": 48,
      "difficulty": "hard",
      "question": "If each value doubled, median ______ 🎨🎭",
      "options": {
        "A": "doubles",
        "B": "halves",
        "C": "same",
        "D": "can't say"
      },
      "correct_answer": "A"
    },
    {
      "id": 49,
      "difficulty": "hard",
      "question": "Find median: 5, 10, 15, 20, 25, 30, 35, 40, 45 🍦🔢",
      "options": { "A": "25", "B": "27.5", "C": "30", "D": "32.5" },
      "correct_answer": "A"
    },
    {
      "id": 50,
      "difficulty": "hard",
      "question": "Mode of data with frequency: 5(2), 6(4), 7(5), 8(3) 🪁🧵",
      "options": { "A": "5", "B": "6", "C": "7", "D": "8" },
      "correct_answer": "C"
    },
    {
      "id": 51,
      "difficulty": "hard",
      "question": "Data: a, b, c, d, e. Median=c. If each +5, new median? 🌌✨",
      "options": { "A": "c", "B": "c+5", "C": "5c", "D": "c+10" },
      "correct_answer": "B"
    },
    {
      "id": 52,
      "difficulty": "hard",
      "question": "Find mode: ₹10, ₹20, ₹10, ₹30, ₹20, ₹10, ₹40 🚴‍♂️📉",
      "options": { "A": "₹10", "B": "₹20", "C": "₹30", "D": "₹40" },
      "correct_answer": "A"
    },
    {
      "id": 53,
      "difficulty": "hard",
      "question": "Median of: 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 🍯🎲",
      "options": { "A": "0.4", "B": "0.45", "C": "0.5", "D": "0.55" },
      "correct_answer": "B"
    },
    {
      "id": 54,
      "difficulty": "hard",
      "question": "If mode=15 and all values ×3, new mode=? 🧮🧩",
      "options": { "A": "15", "B": "45", "C": "5", "D": "18" },
      "correct_answer": "B"
    },
    {
      "id": 55,
      "difficulty": "hard",
      "question": "Find median: 100, 150, 200, 250, 300, 350, 400, 450 🥨🔑",
      "options": { "A": "250", "B": "275", "C": "300", "D": "325" },
      "correct_answer": "B"
    },
    {
      "id": 56,
      "difficulty": "hard",
      "question": "Mode of: Jan, Feb, Jan, Mar, Jan, Feb 🎸🎶",
      "options": { "A": "Jan", "B": "Feb", "C": "Mar", "D": "Jan & Feb" },
      "correct_answer": "A"
    },
    {
      "id": 57,
      "difficulty": "hard",
      "question": "Data: 2,4,6,8,10. If each ÷2, median=? 🍉⚖️",
      "options": { "A": "3", "B": "4", "C": "5", "D": "6" },
      "correct_answer": "A"
    },
    {
      "id": 58,
      "difficulty": "hard",
      "question": "Find mode: 25kg, 30kg, 25kg, 35kg, 30kg, 25kg 🍍🏁",
      "options": { "A": "25kg", "B": "30kg", "C": "35kg", "D": "25 & 30kg" },
      "correct_answer": "A"
    },
    {
      "id": 59,
      "difficulty": "hard",
      "question": "Median of first 20 natural numbers 🪐🧠",
      "options": { "A": "10", "B": "10.5", "C": "11", "D": "11.5" },
      "correct_answer": "B"
    },
    {
      "id": 60,
      "difficulty": "hard",
      "question": "Data: 12,15,18,21,24,27,30. If 33 added, new median? 🏀🎭",
      "options": { "A": "21", "B": "22.5", "C": "24", "D": "25.5" },
      "correct_answer": "B"
    }
  ]
}