{
  "title": "Mean, Median, Mode (Data Handling) - Grade 5 ICSE",
  "total_questions": 60,
  "questions": [
    {
      "id": 1,
      "difficulty": "easy",
      "question": "Find mean of: 🍎🍎🍎 (3 apples)",
      "options": {
        "A": "1",
        "B": "2",
        "C": "3",
        "D": "4"
      },
      "correct_answer": "A"
    },
    {
      "id": 2,
      "difficulty": "easy",
      "question": "Find median of: 2, 4, 6",
      "options": { "A": "2", "B": "4", "C": "6", "D": "5" },
      "correct_answer": "B"
    },
    {
      "id": 3,
      "difficulty": "easy",
      "question": "Find mode of: 🐶🐶🐱 (2 dogs, 1 cat)",
      "options": { "A": "Dog", "B": "Cat", "C": "Both", "D": "Neither" },
      "correct_answer": "A"
    },
    {
      "id": 4,
      "difficulty": "easy",
      "question": "Mean of: 5, 10, 15",
      "options": { "A": "8", "B": "9", "C": "10", "D": "11" },
      "correct_answer": "C"
    },
    {
      "id": 5,
      "difficulty": "easy",
      "question": "Median of: 7, 3, 5 (arrange first)",
      "options": { "A": "3", "B": "5", "C": "7", "D": "6" },
      "correct_answer": "B"
    },
    {
      "id": 6,
      "difficulty": "easy",
      "question": "Mode of: 🍦🍦🍧🍧🍦 (3 ice cream, 2 popsicle)",
      "options": {
        "A": "Ice cream",
        "B": "Popsicle",
        "C": "Both",
        "D": "Neither"
      },
      "correct_answer": "A"
    },
    {
      "id": 7,
      "difficulty": "easy",
      "question": "Mean of: 4, 6, 8",
      "options": { "A": "5", "B": "6", "C": "7", "D": "8" },
      "correct_answer": "B"
    },
    {
      "id": 8,
      "difficulty": "easy",
      "question": "Median of: 9, 1, 5",
      "options": { "A": "1", "B": "5", "C": "9", "D": "7" },
      "correct_answer": "B"
    },
    {
      "id": 9,
      "difficulty": "easy",
      "question": "Mode of: ⚽⚽🏀🏀⚽ (3 soccer, 2 basketball)",
      "options": {
        "A": "Soccer",
        "B": "Basketball",
        "C": "Both",
        "D": "Neither"
      },
      "correct_answer": "A"
    },
    {
      "id": 10,
      "difficulty": "easy",
      "question": "Mean of: 2, 4, 6, 8",
      "options": { "A": "4", "B": "5", "C": "6", "D": "7" },
      "correct_answer": "B"
    },
    {
      "id": 11,
      "difficulty": "easy",
      "question": "Median of: 10, 20, 30, 40",
      "options": { "A": "20", "B": "25", "C": "30", "D": "35" },
      "correct_answer": "B"
    },
    {
      "id": 12,
      "difficulty": "easy",
      "question": "Mode of: 🎨🎨🎮🎮🎨🎮🎨 (4 art, 3 game)",
      "options": { "A": "Art", "B": "Game", "C": "Both", "D": "Neither" },
      "correct_answer": "A"
    },
    {
      "id": 13,
      "difficulty": "easy",
      "question": "Mean of: 1, 2, 3, 4, 5",
      "options": { "A": "2", "B": "2.5", "C": "3", "D": "3.5" },
      "correct_answer": "C"
    },
    {
      "id": 14,
      "difficulty": "easy",
      "question": "Median of: 6, 2, 8, 4 (arrange)",
      "options": { "A": "4", "B": "5", "C": "6", "D": "7" },
      "correct_answer": "B"
    },
    {
      "id": 15,
      "difficulty": "easy",
      "question": "Mode of: 📚📚📚🎵🎵 (3 book, 2 music)",
      "options": { "A": "Book", "B": "Music", "C": "Both", "D": "Neither" },
      "correct_answer": "A"
    },
    {
      "id": 16,
      "difficulty": "easy",
      "question": "Mean of: 0, 5, 10",
      "options": { "A": "4", "B": "5", "C": "6", "D": "7" },
      "correct_answer": "B"
    },
    {
      "id": 17,
      "difficulty": "easy",
      "question": "Median of: 15, 25, 35, 45",
      "options": { "A": "25", "B": "30", "C": "35", "D": "40" },
      "correct_answer": "B"
    },
    {
      "id": 18,
      "difficulty": "easy",
      "question": "Mode of: 🚗🚗🚲🚲🚗🚲🚗 (4 car, 3 bike)",
      "options": { "A": "Car", "B": "Bike", "C": "Both", "D": "Neither" },
      "correct_answer": "A"
    },
    {
      "id": 19,
      "difficulty": "easy",
      "question": "Mean of: 12, 18, 24",
      "options": { "A": "16", "B": "17", "C": "18", "D": "19" },
      "correct_answer": "C"
    },
    {
      "id": 20,
      "difficulty": "easy",
      "question": "Median of: 50, 30, 70, 40 (arrange)",
      "options": { "A": "40", "B": "45", "C": "50", "D": "55" },
      "correct_answer": "B"
    },

    {
      "id": 21,
      "difficulty": "medium",
      "question": "Mean of: 2, 4, 6, 8, 10",
      "options": { "A": "5", "B": "6", "C": "7", "D": "8" },
      "correct_answer": "B"
    },
    {
      "id": 22,
      "difficulty": "medium",
      "question": "Median of: 11, 13, 15, 17, 19",
      "options": { "A": "13", "B": "14", "C": "15", "D": "16" },
      "correct_answer": "C"
    },
    {
      "id": 23,
      "difficulty": "medium",
      "question": "Mode of: 3, 5, 3, 7, 5, 3, 9",
      "options": { "A": "3", "B": "5", "C": "7", "D": "9" },
      "correct_answer": "A"
    },
    {
      "id": 24,
      "difficulty": "medium",
      "question": "If mean of 4 numbers is 10, their sum is?",
      "options": { "A": "20", "B": "30", "C": "40", "D": "50" },
      "correct_answer": "C"
    },
    {
      "id": 25,
      "difficulty": "medium",
      "question": "Median of: 22, 18, 25, 20, 28 (arrange)",
      "options": { "A": "20", "B": "22", "C": "24", "D": "25" },
      "correct_answer": "B"
    },
    {
      "id": 26,
      "difficulty": "medium",
      "question": "Mode of: 🍎🍌🍎🍇🍌🍎🍌🍎 (4🍎, 3🍌, 1🍇)",
      "options": { "A": "🍎", "B": "🍌", "C": "🍇", "D": "No mode" },
      "correct_answer": "A"
    },
    {
      "id": 27,
      "difficulty": "medium",
      "question": "Mean of: 15, 20, 25, 30, 35",
      "options": { "A": "22", "B": "23", "C": "24", "D": "25" },
      "correct_answer": "D"
    },
    {
      "id": 28,
      "difficulty": "medium",
      "question": "If mode is 7 in: 5, 7, 9, 7, 3, _. What's the missing number?",
      "options": {
        "A": "5",
        "B": "7",
        "C": "9",
        "D": "3"
      },
      "correct_answer": "B"
    },
    {
      "id": 29,
      "difficulty": "medium",
      "question": "Median of even set: 4, 8, 12, 16",
      "options": { "A": "8", "B": "10", "C": "12", "D": "14" },
      "correct_answer": "B"
    },
    {
      "id": 30,
      "difficulty": "medium",
      "question": "Mean of first 5 even numbers",
      "options": { "A": "4", "B": "5", "C": "6", "D": "7" },
      "correct_answer": "C"
    },
    {
      "id": 31,
      "difficulty": "medium",
      "question": "Mode of: 2, 3, 2, 4, 3, 2, 5",
      "options": { "A": "2", "B": "3", "C": "4", "D": "5" },
      "correct_answer": "A"
    },
    {
      "id": 32,
      "difficulty": "medium",
      "question": "If median is 15 in: 10, _, 20, what's missing?",
      "options": { "A": "14", "B": "15", "C": "16", "D": "17" },
      "correct_answer": "B"
    },
    {
      "id": 33,
      "difficulty": "medium",
      "question": "Mean of: 100, 200, 300",
      "options": { "A": "150", "B": "200", "C": "250", "D": "300" },
      "correct_answer": "B"
    },
    {
      "id": 34,
      "difficulty": "medium",
      "question": "Median of: 45, 35, 55, 25, 65",
      "options": { "A": "35", "B": "45", "C": "55", "D": "50" },
      "correct_answer": "B"
    },
    {
      "id": 35,
      "difficulty": "medium",
      "question": "Bimodal data: 1, 2, 2, 3, 3, 4. Modes?",
      "options": { "A": "2", "B": "3", "C": "2 and 3", "D": "No mode" },
      "correct_answer": "C"
    },
    {
      "id": 36,
      "difficulty": "medium",
      "question": "Mean of 5 numbers is 12. Four are: 10, 11, 13, 14. Fifth?",
      "options": { "A": "10", "B": "11", "C": "12", "D": "13" },
      "correct_answer": "C"
    },
    {
      "id": 37,
      "difficulty": "medium",
      "question": "Median of: 7, 9, 11, 13, 15, 17",
      "options": { "A": "11", "B": "12", "C": "13", "D": "14" },
      "correct_answer": "B"
    },
    {
      "id": 38,
      "difficulty": "medium",
      "question": "Mode of: 🐱🐶🐱🐰🐶🐱🐶🐱 (4🐱, 3🐶, 1🐰)",
      "options": { "A": "🐱", "B": "🐶", "C": "🐰", "D": "No mode" },
      "correct_answer": "A"
    },
    {
      "id": 39,
      "difficulty": "medium",
      "question": "If mean of 3 numbers is 8, sum is?",
      "options": { "A": "16", "B": "20", "C": "24", "D": "28" },
      "correct_answer": "C"
    },
    {
      "id": 40,
      "difficulty": "medium",
      "question": "Median of: 1.5, 2.5, 3.5, 4.5",
      "options": { "A": "2.5", "B": "3", "C": "3.5", "D": "4" },
      "correct_answer": "B"
    },

    {
      "id": 41,
      "difficulty": "hard",
      "question": "Mean of: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20",
      "options": { "A": "10", "B": "11", "C": "12", "D": "13" },
      "correct_answer": "B"
    },
    {
      "id": 42,
      "difficulty": "hard",
      "question": "Median of: 21, 23, 25, 27, 29, 31, 33",
      "options": { "A": "26", "B": "27", "C": "28", "D": "29" },
      "correct_answer": "B"
    },
    {
      "id": 43,
      "difficulty": "hard",
      "question": "Mode of: 5, 7, 5, 8, 7, 5, 9, 7, 5, 10",
      "options": { "A": "5", "B": "7", "C": "5 and 7", "D": "No mode" },
      "correct_answer": "A"
    },
    {
      "id": 44,
      "difficulty": "hard",
      "question": "If mean of 6 numbers is 15, and five are: 12, 14, 16, 18, 10, find sixth",
      "options": { "A": "18", "B": "19", "C": "20", "D": "21" },
      "correct_answer": "C"
    },
    {
      "id": 45,
      "difficulty": "hard",
      "question": "Median of: 4.2, 5.8, 3.6, 6.4, 7.0, 2.8",
      "options": { "A": "4.2", "B": "4.8", "C": "5", "D": "5.2" },
      "correct_answer": "C"
    },
    {
      "id": 46,
      "difficulty": "hard",
      "question": "Trimodal data: 1,1,2,2,3,3,4,5. Modes?",
      "options": { "A": "1", "B": "2", "C": "3", "D": "1,2,3" },
      "correct_answer": "D"
    },
    {
      "id": 47,
      "difficulty": "hard",
      "question": "Mean of first 10 natural numbers",
      "options": { "A": "4.5", "B": "5", "C": "5.5", "D": "6" },
      "correct_answer": "C"
    },
    {
      "id": 48,
      "difficulty": "hard",
      "question": "If mode is 25 and numbers are: 20, 25, 30, 25, _, 35. Missing?",
      "options": { "A": "20", "B": "25", "C": "30", "D": "35" },
      "correct_answer": "B"
    },
    {
      "id": 49,
      "difficulty": "hard",
      "question": "Median of: 0.5, 1.5, 2.5, 3.5, 4.5, 5.5",
      "options": { "A": "2.5", "B": "3", "C": "3.5", "D": "4" },
      "correct_answer": "B"
    },
    {
      "id": 50,
      "difficulty": "hard",
      "question": "Mean of: a, b, c is 10. If a=5, b=15, find c",
      "options": { "A": "8", "B": "9", "C": "10", "D": "11" },
      "correct_answer": "C"
    },
    {
      "id": 51,
      "difficulty": "hard",
      "question": "Find median of: 12, 15, 18, 21, 24, 27, 30, 33",
      "options": { "A": "21", "B": "22.5", "C": "24", "D": "25.5" },
      "correct_answer": "B"
    },
    {
      "id": 52,
      "difficulty": "hard",
      "question": "Mode of: 🍎🍌🍇🍎🍌🍇🍎🍌🍇🍎 (4🍎, 3🍌, 3🍇)",
      "options": { "A": "🍎", "B": "🍌", "C": "🍇", "D": "🍎,🍌,🍇" },
      "correct_answer": "A"
    },
    {
      "id": 53,
      "difficulty": "hard",
      "question": "If mean of 4 consecutive even numbers is 11, numbers are?",
      "options": {
        "A": "8,10,12,14",
        "B": "9,11,13,15",
        "C": "10,12,14,16",
        "D": "12,14,16,18"
      },
      "correct_answer": "A"
    },
    {
      "id": 54,
      "difficulty": "hard",
      "question": "Median of: 1/2, 3/4, 1, 5/4, 3/2, 7/4",
      "options": { "A": "1", "B": "1.125", "C": "1.25", "D": "1.375" },
      "correct_answer": "B"
    },
    {
      "id": 55,
      "difficulty": "hard",
      "question": "No mode in: 2, 4, 6, 8, 10. Add which number again to create a mode of 2?",
      "options": {
        "A": "2",
        "B": "4",
        "C": "6",
        "D": "8"
      },
      "correct_answer": "A"
    },
    {
      "id": 56,
      "difficulty": "hard",
      "question": "Mean of 7 numbers is 9. Six are: 5, 7, 9, 11, 13, 8. Find seventh",
      "options": { "A": "9", "B": "10", "C": "11", "D": "12" },
      "correct_answer": "B"
    },
    {
      "id": 57,
      "difficulty": "hard",
      "question": "Median of: 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7",
      "options": { "A": "0.3", "B": "0.35", "C": "0.4", "D": "0.45" },
      "correct_answer": "C"
    },
    {
      "id": 58,
      "difficulty": "hard",
      "question": "If mode is 0 and data has: -1, 0, 1, 0, _, 2. Missing?",
      "options": { "A": "-1", "B": "0", "C": "1", "D": "2" },
      "correct_answer": "B"
    },
    {
      "id": 59,
      "difficulty": "hard",
      "question": "Mean of x, x+2, x+4, x+6, x+8 is 20. Find x",
      "options": { "A": "16", "B": "17", "C": "18", "D": "19" },
      "correct_answer": "A"
    },
    {
      "id": 60,
      "difficulty": "hard",
      "question": "Which always changes if extreme value changes? Mean, Median, or Mode?",
      "options": { "A": "Mean", "B": "Median", "C": "Mode", "D": "All" },
      "correct_answer": "A"
    }
  ]
}