{
  "title": "Measurement - Standard units (cm, m)",
  "questions": [
    {
      "id": 1,
      "difficulty": "Easy",
      "question": "What unit do we use to measure a pencil?",
      "options": { "A": "cm", "B": "m", "C": "km", "D": "inch" },
      "correct_answer": "A"
    },
    {
      "id": 2,
      "difficulty": "Easy",
      "question": "What unit is used to measure the height of a door?",
      "options": { "A": "cm", "B": "m", "C": "mm", "D": "litre" },
      "correct_answer": "B"
    },
    {
      "id": 3,
      "difficulty": "Easy",
      "question": "1 metre = ___ cm",
      "options": { "A": "10", "B": "50", "C": "100", "D": "25" },
      "correct_answer": "C"
    },
    {
      "id": 4,
      "difficulty": "Easy",
      "question": "Which is bigger?",
      "options": { "A": "1 m", "B": "10 cm", "C": "50 cm", "D": "25 cm" },
      "correct_answer": "A"
    },
    {
      "id": 5,
      "difficulty": "Easy",
      "question": "A ruler usually measures up to:",
      "options": { "A": "10 cm", "B": "30 cm", "C": "50 cm", "D": "100 cm" },
      "correct_answer": "B"
    },
    {
      "id": 6,
      "difficulty": "Easy",
      "question": "Length of an eraser is measured in:",
      "options": { "A": "m", "B": "cm", "C": "km", "D": "grams" },
      "correct_answer": "B"
    },
    {
      "id": 7,
      "difficulty": "Easy",
      "question": "100 cm = ___ m",
      "options": { "A": "1", "B": "2", "C": "0", "D": "50" },
      "correct_answer": "A"
    },
    {
      "id": 8,
      "difficulty": "Easy",
      "question": "Height of a tree is measured in:",
      "options": { "A": "cm", "B": "m", "C": "mm", "D": "mg" },
      "correct_answer": "B"
    },
    {
      "id": 9,
      "difficulty": "Easy",
      "question": "Which is longer?",
      "options": { "A": "25 cm", "B": "1 m", "C": "80 cm", "D": "20 cm" },
      "correct_answer": "B"
    },
    {
      "id": 10,
      "difficulty": "Easy",
      "question": "A bottle cap is measured in:",
      "options": { "A": "cm", "B": "m", "C": "km", "D": "litre" },
      "correct_answer": "A"
    },
    {
      "id": 11,
      "difficulty": "Easy",
      "question": "A mat length is generally measured in:",
      "options": { "A": "cm", "B": "m", "C": "km", "D": "g" },
      "correct_answer": "B"
    },
    {
      "id": 12,
      "difficulty": "Easy",
      "question": "Which unit is smaller?",
      "options": { "A": "cm", "B": "m", "C": "Both same", "D": "None" },
      "correct_answer": "A"
    },
    {
      "id": 13,
      "difficulty": "Easy",
      "question": "50 cm is:",
      "options": {
        "A": "Half metre",
        "B": "One metre",
        "C": "Quarter metre",
        "D": "2 metres"
      },
      "correct_answer": "A"
    },
    {
      "id": 14,
      "difficulty": "Easy",
      "question": "Length of a book is measured in:",
      "options": { "A": "cm", "B": "m", "C": "km", "D": "l" },
      "correct_answer": "A"
    },
    {
      "id": 15,
      "difficulty": "Easy",
      "question": "10 cm is:",
      "options": {
        "A": "Very small length",
        "B": "Very long",
        "C": "More than 1 m",
        "D": "Same as 1 m"
      },
      "correct_answer": "A"
    },
    {
      "id": 16,
      "difficulty": "Easy",
      "question": "A room’s length is measured in:",
      "options": { "A": "cm", "B": "m", "C": "mm", "D": "litre" },
      "correct_answer": "B"
    },
    {
      "id": 17,
      "difficulty": "Easy",
      "question": "Which is best to measure the height of a student?",
      "options": { "A": "cm", "B": "m", "C": "km", "D": "mg" },
      "correct_answer": "A"
    },
    {
      "id": 18,
      "difficulty": "Easy",
      "question": "Which is more?",
      "options": { "A": "60 cm", "B": "1 m", "C": "30 cm", "D": "25 cm" },
      "correct_answer": "B"
    },
    {
      "id": 19,
      "difficulty": "Easy",
      "question": "20 cm + 20 cm = ___ cm",
      "options": { "A": "30", "B": "40", "C": "50", "D": "60" },
      "correct_answer": "B"
    },
    {
      "id": 20,
      "difficulty": "Easy",
      "question": "A table height is usually measured in:",
      "options": { "A": "cm", "B": "m", "C": "km", "D": "ml" },
      "correct_answer": "B"
    },

    {
      "id": 21,
      "difficulty": "Medium",
      "question": "What is 120 cm in metres?",
      "options": { "A": "1.2 m", "B": "12 m", "C": "0.12 m", "D": "2 m" },
      "correct_answer": "A"
    },
    {
      "id": 22,
      "difficulty": "Medium",
      "question": "What is 150 cm?",
      "options": { "A": "1.5 m", "B": "15 m", "C": "0.5 m", "D": "2 m" },
      "correct_answer": "A"
    },
    {
      "id": 23,
      "difficulty": "Medium",
      "question": "Which is greater?",
      "options": { "A": "130 cm", "B": "1 m", "C": "90 cm", "D": "50 cm" },
      "correct_answer": "A"
    },
    {
      "id": 24,
      "difficulty": "Medium",
      "question": "A rope is 2 m long. How many cm?",
      "options": { "A": "200 cm", "B": "20 cm", "C": "2000 cm", "D": "220 cm" },
      "correct_answer": "A"
    },
    {
      "id": 25,
      "difficulty": "Medium",
      "question": "Height of a tree = 5 m. In cm?",
      "options": { "A": "50 cm", "B": "500 cm", "C": "5 cm", "D": "5000 cm" },
      "correct_answer": "B"
    },
    {
      "id": 26,
      "difficulty": "Medium",
      "question": "A child is 125 cm tall. In metres?",
      "options": { "A": "1.25 m", "B": "12.5 m", "C": "0.125 m", "D": "2 m" },
      "correct_answer": "A"
    },
    {
      "id": 27,
      "difficulty": "Medium",
      "question": "Which is longer than 2 m?",
      "options": { "A": "150 cm", "B": "250 cm", "C": "100 cm", "D": "50 cm" },
      "correct_answer": "B"
    },
    {
      "id": 28,
      "difficulty": "Medium",
      "question": "What is 180 cm?",
      "options": { "A": "1.8 m", "B": "18 m", "C": "0.18 m", "D": "2 m" },
      "correct_answer": "A"
    },
    {
      "id": 29,
      "difficulty": "Medium",
      "question": "Which unit is used for length of a bus?",
      "options": { "A": "cm", "B": "m", "C": "g", "D": "mm" },
      "correct_answer": "B"
    },
    {
      "id": 30,
      "difficulty": "Medium",
      "question": "A class board is 150 cm tall. It is?",
      "options": { "A": "1 m", "B": "1.5 m", "C": "2 m", "D": "0.5 m" },
      "correct_answer": "B"
    },
    {
      "id": 31,
      "difficulty": "Medium",
      "question": "90 cm is:",
      "options": { "A": "0.9 m", "B": "9 m", "C": "1.9 m", "D": "0.19 m" },
      "correct_answer": "A"
    },
    {
      "id": 32,
      "difficulty": "Medium",
      "question": "Which is shorter?",
      "options": { "A": "0.5 m", "B": "60 cm", "C": "70 cm", "D": "1 m" },
      "correct_answer": "A"
    },
    {
      "id": 33,
      "difficulty": "Medium",
      "question": "220 cm in metres is:",
      "options": { "A": "2.2 m", "B": "22 m", "C": "0.22 m", "D": "1.2 m" },
      "correct_answer": "A"
    },
    {
      "id": 34,
      "difficulty": "Medium",
      "question": "A ribbon is 3 m long. In cm?",
      "options": { "A": "30 cm", "B": "300 cm", "C": "3000 cm", "D": "33 cm" },
      "correct_answer": "B"
    },
    {
      "id": 35,
      "difficulty": "Medium",
      "question": "Which is greater?",
      "options": { "A": "150 cm", "B": "1 m", "C": "120 cm", "D": "80 cm" },
      "correct_answer": "A"
    },
    {
      "id": 36,
      "difficulty": "Medium",
      "question": "A room is 3.5 m wide. In cm?",
      "options": { "A": "350 cm", "B": "35 cm", "C": "305 cm", "D": "3500 cm" },
      "correct_answer": "A"
    },
    {
      "id": 37,
      "difficulty": "Medium",
      "question": "Which is longest?",
      "options": { "A": "2 m", "B": "190 cm", "C": "150 cm", "D": "120 cm" },
      "correct_answer": "A"
    },
    {
      "id": 38,
      "difficulty": "Medium",
      "question": "75 cm is:",
      "options": { "A": "0.75 m", "B": "7.5 m", "C": "1.75 m", "D": "0.7 m" },
      "correct_answer": "A"
    },
    {
      "id": 39,
      "difficulty": "Medium",
      "question": "A stick is 250 cm long. In metres?",
      "options": { "A": "2.5 m", "B": "25 m", "C": "0.25 m", "D": "3 m" },
      "correct_answer": "A"
    },
    {
      "id": 40,
      "difficulty": "Medium",
      "question": "Which is less?",
      "options": { "A": "2 m", "B": "150 cm", "C": "1.5 m", "D": "1 m" },
      "correct_answer": "D"
    },

    {
      "id": 41,
      "difficulty": "Hard",
      "question": "A rope is 345 cm long. In metres?",
      "options": { "A": "3.45 m", "B": "34.5 m", "C": "0.345 m", "D": "3 m" },
      "correct_answer": "A"
    },
    {
      "id": 42,
      "difficulty": "Hard",
      "question": "Which is longest?",
      "options": { "A": "250 cm", "B": "2.5 m", "C": "300 cm", "D": "2 m" },
      "correct_answer": "C"
    },
    {
      "id": 43,
      "difficulty": "Hard",
      "question": "A wall is 260 cm tall. In metres?",
      "options": { "A": "2.6 m", "B": "26 m", "C": "0.26 m", "D": "6 m" },
      "correct_answer": "A"
    },
    {
      "id": 44,
      "difficulty": "Hard",
      "question": "Which is equal to 3.5 m?",
      "options": { "A": "350 cm", "B": "35 cm", "C": "3 cm", "D": "305 cm" },
      "correct_answer": "A"
    },
    {
      "id": 45,
      "difficulty": "Hard",
      "question": "A plank is 420 cm long. It is:",
      "options": { "A": "4.2 m", "B": "42 m", "C": "0.42 m", "D": "2 m" },
      "correct_answer": "A"
    },
    {
      "id": 46,
      "difficulty": "Hard",
      "question": "A cloth is 1.75 m long. In cm?",
      "options": {
        "A": "175 cm",
        "B": "17.5 cm",
        "C": "1750 cm",
        "D": "100 cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 47,
      "difficulty": "Hard",
      "question": "Which is more?",
      "options": { "A": "3 m", "B": "290 cm", "C": "250 cm", "D": "200 cm" },
      "correct_answer": "A"
    },
    {
      "id": 48,
      "difficulty": "Hard",
      "question": "700 cm = ___ m",
      "options": { "A": "7 m", "B": "70 m", "C": "0.7 m", "D": "17 m" },
      "correct_answer": "A"
    },
    {
      "id": 49,
      "difficulty": "Hard",
      "question": "A hall is 9 m long. In cm?",
      "options": { "A": "900 cm", "B": "90 cm", "C": "9000 cm", "D": "190 cm" },
      "correct_answer": "A"
    },
    {
      "id": 50,
      "difficulty": "Hard",
      "question": "Which is the correct comparison?",
      "options": {
        "A": "2.3 m = 230 cm",
        "B": "2.3 m > 230 cm",
        "C": "2.3 m < 230 cm",
        "D": "2.3 m = 23 cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 51,
      "difficulty": "Hard",
      "question": "A stick is 3.25 m. In cm?",
      "options": {
        "A": "325 cm",
        "B": "32.5 cm",
        "C": "3025 cm",
        "D": "305 cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 52,
      "difficulty": "Hard",
      "question": "Which is longest?",
      "options": { "A": "4 m", "B": "350 cm", "C": "3.5 m", "D": "450 cm" },
      "correct_answer": "D"
    },
    {
      "id": 53,
      "difficulty": "Hard",
      "question": "A curtain is 265 cm long. In metres?",
      "options": {
        "A": "2.65 m",
        "B": "26.5 m",
        "C": "0.265 m",
        "D": "1.65 m"
      },
      "correct_answer": "A"
    },
    {
      "id": 54,
      "difficulty": "Hard",
      "question": "Which is closest to 2 m?",
      "options": {
        "A": "190 cm",
        "B": "150 cm",
        "C": "230 cm",
        "D": "250 cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 55,
      "difficulty": "Hard",
      "question": "A rope is 95 cm long. Is it more than 1 m?",
      "options": { "A": "No", "B": "Yes", "C": "Both", "D": "Cannot say" },
      "correct_answer": "A"
    },
    {
      "id": 56,
      "difficulty": "Hard",
      "question": "Double of 180 cm is:",
      "options": { "A": "360 cm", "B": "280 cm", "C": "300 cm", "D": "390 cm" },
      "correct_answer": "A"
    },
    {
      "id": 57,
      "difficulty": "Hard",
      "question": "365 cm in metres is:",
      "options": { "A": "3.65 m", "B": "36.5 m", "C": "0.365 m", "D": "3 m" },
      "correct_answer": "A"
    },
    {
      "id": 58,
      "difficulty": "Hard",
      "question": "Which is more: 2.05 m or 205 cm?",
      "options": {
        "A": "Both equal",
        "B": "2.05 m",
        "C": "205 cm",
        "D": "None"
      },
      "correct_answer": "A"
    },
    {
      "id": 59,
      "difficulty": "Hard",
      "question": "4.5 m = ___ cm",
      "options": { "A": "450 cm", "B": "45 cm", "C": "400 cm", "D": "405 cm" },
      "correct_answer": "A"
    },
    {
      "id": 60,
      "difficulty": "Hard",
      "question": "A field is 1250 cm wide. In metres?",
      "options": { "A": "12.5 m", "B": "1.25 m", "C": "125 m", "D": "15 m" },
      "correct_answer": "A"
    }
  ]
}