{
  "title": "Measurement - Measuring Length",
  "questions": [
    {
      "id": 1,
      "difficulty": "Easy",
      "question": "What tool is used to measure length?",
      "options": { "A": "Ruler", "B": "Spoon", "C": "Clock", "D": "Glass" },
      "correct_answer": "A"
    },
    {
      "id": 2,
      "difficulty": "Easy",
      "question": "Which unit is used to measure small lengths?",
      "options": { "A": "cm", "B": "m", "C": "kg", "D": "litre" },
      "correct_answer": "A"
    },
    {
      "id": 3,
      "difficulty": "Easy",
      "question": "Which unit is used for long lengths?",
      "options": { "A": "cm", "B": "m", "C": "ml", "D": "g" },
      "correct_answer": "B"
    },
    {
      "id": 4,
      "difficulty": "Easy",
      "question": "What do we measure with a ruler?",
      "options": {
        "A": "Length",
        "B": "Weight",
        "C": "Time",
        "D": "Temperature"
      },
      "correct_answer": "A"
    },
    {
      "id": 5,
      "difficulty": "Easy",
      "question": "The length of a pencil is measured in:",
      "options": { "A": "m", "B": "cm", "C": "km", "D": "mm" },
      "correct_answer": "B"
    },
    {
      "id": 6,
      "difficulty": "Easy",
      "question": "The height of the classroom door is measured in:",
      "options": { "A": "cm", "B": "m", "C": "g", "D": "ml" },
      "correct_answer": "B"
    },
    {
      "id": 7,
      "difficulty": "Easy",
      "question": "1 metre = ___ cm",
      "options": { "A": "10", "B": "50", "C": "100", "D": "250" },
      "correct_answer": "C"
    },
    {
      "id": 8,
      "difficulty": "Easy",
      "question": "Which is longer?",
      "options": { "A": "20 cm", "B": "1 m", "C": "15 cm", "D": "10 cm" },
      "correct_answer": "B"
    },
    {
      "id": 9,
      "difficulty": "Easy",
      "question": "A ribbon of 40 cm is:",
      "options": {
        "A": "Short",
        "B": "Long",
        "C": "Very long",
        "D": "Very short"
      },
      "correct_answer": "A"
    },
    {
      "id": 10,
      "difficulty": "Easy",
      "question": "A child’s height is usually measured in:",
      "options": { "A": "cm", "B": "m", "C": "kg", "D": "ml" },
      "correct_answer": "A"
    },
    {
      "id": 11,
      "difficulty": "Easy",
      "question": "A meter scale measures:",
      "options": { "A": "1 m", "B": "2 m", "C": "3 m", "D": "10 m" },
      "correct_answer": "A"
    },
    {
      "id": 12,
      "difficulty": "Easy",
      "question": "Which object needs measuring?",
      "options": { "A": "Desk length", "B": "Air", "C": "Sound", "D": "Light" },
      "correct_answer": "A"
    },
    {
      "id": 13,
      "difficulty": "Easy",
      "question": "Length of a car is measured in:",
      "options": { "A": "cm", "B": "m", "C": "km", "D": "l" },
      "correct_answer": "B"
    },
    {
      "id": 14,
      "difficulty": "Easy",
      "question": "A line segment length can be measured with:",
      "options": {
        "A": "A ruler",
        "B": "A pen",
        "C": "A book",
        "D": "A spoon"
      },
      "correct_answer": "A"
    },
    {
      "id": 15,
      "difficulty": "Easy",
      "question": "50 cm is:",
      "options": {
        "A": "Half metre",
        "B": "1 m",
        "C": "1.5 m",
        "D": "Double 1 m"
      },
      "correct_answer": "A"
    },
    {
      "id": 16,
      "difficulty": "Easy",
      "question": "Which is smaller?",
      "options": { "A": "30 cm", "B": "1 m", "C": "2 m", "D": "150 cm" },
      "correct_answer": "A"
    },
    {
      "id": 17,
      "difficulty": "Easy",
      "question": "Length of a book is around:",
      "options": { "A": "1 cm", "B": "20 cm", "C": "2 m", "D": "50 m" },
      "correct_answer": "B"
    },
    {
      "id": 18,
      "difficulty": "Easy",
      "question": "Which is the shortest?",
      "options": { "A": "5 cm", "B": "50 cm", "C": "1 m", "D": "20 cm" },
      "correct_answer": "A"
    },
    {
      "id": 19,
      "difficulty": "Easy",
      "question": "A table height is measured in:",
      "options": { "A": "cm or m", "B": "kg", "C": "ml", "D": "km" },
      "correct_answer": "A"
    },
    {
      "id": 20,
      "difficulty": "Easy",
      "question": "A scale with 30 small lines measures:",
      "options": { "A": "30 cm", "B": "30 m", "C": "3 m", "D": "300 m" },
      "correct_answer": "A"
    },
    {
      "id": 21,
      "difficulty": "Medium",
      "question": "A rope is 85 cm long. What is its length?",
      "options": {
        "A": "15 cm",
        "B": "85 cm",
        "C": "1.85 m",
        "D": "850 cm"
      },
      "correct_answer": "B"
    },
    {
      "id": 22,
      "difficulty": "Medium",
      "question": "Which is longer?",
      "options": { "A": "75 cm", "B": "1 m", "C": "Both same", "D": "None" },
      "correct_answer": "B"
    },
    {
      "id": 23,
      "difficulty": "Medium",
      "question": "A stick is 120 cm long. In metres?",
      "options": { "A": "1.2 m", "B": "12 m", "C": "0.12 m", "D": "2 m" },
      "correct_answer": "A"
    },
    {
      "id": 24,
      "difficulty": "Medium",
      "question": "Which object is about 3 m tall?",
      "options": {
        "A": "A child",
        "B": "A chair",
        "C": "A ladder",
        "D": "A pencil"
      },
      "correct_answer": "C"
    },
    {
      "id": 25,
      "difficulty": "Medium",
      "question": "A door is 2 m high. How many cm is that?",
      "options": { "A": "250 cm", "B": "200 cm", "C": "150 cm", "D": "20 cm" },
      "correct_answer": "B"
    },
    {
      "id": 26,
      "difficulty": "Medium",
      "question": "Which is the best unit to measure a cupboard?",
      "options": { "A": "cm", "B": "m", "C": "mm", "D": "km" },
      "correct_answer": "B"
    },
    {
      "id": 27,
      "difficulty": "Medium",
      "question": "Height of a student is 130 cm. In metres?",
      "options": { "A": "1.3 m", "B": "3 m", "C": "0.13 m", "D": "13 m" },
      "correct_answer": "A"
    },
    {
      "id": 28,
      "difficulty": "Medium",
      "question": "Which is shorter?",
      "options": { "A": "150 cm", "B": "2 m", "C": "175 cm", "D": "180 cm" },
      "correct_answer": "A"
    },
    {
      "id": 29,
      "difficulty": "Medium",
      "question": "A cloth is 250 cm long. What is its length in m?",
      "options": { "A": "2.5 m", "B": "25 m", "C": "0.25 m", "D": "3 m" },
      "correct_answer": "A"
    },
    {
      "id": 30,
      "difficulty": "Medium",
      "question": "What is the best tool to measure a table?",
      "options": {
        "A": "Meter tape",
        "B": "Thermometer",
        "C": "Clock",
        "D": "Cup"
      },
      "correct_answer": "A"
    },
    {
      "id": 31,
      "difficulty": "Medium",
      "question": "What unit to measure width of a notebook?",
      "options": { "A": "cm", "B": "m", "C": "km", "D": "l" },
      "correct_answer": "A"
    },
    {
      "id": 32,
      "difficulty": "Medium",
      "question": "The path is 300 cm long. It is how many metres?",
      "options": { "A": "3 m", "B": "30 m", "C": "0.3 m", "D": "300 m" },
      "correct_answer": "A"
    },
    {
      "id": 33,
      "difficulty": "Medium",
      "question": "Which is longest?",
      "options": { "A": "2.5 m", "B": "230 cm", "C": "200 cm", "D": "1.5 m" },
      "correct_answer": "A"
    },
    {
      "id": 34,
      "difficulty": "Medium",
      "question": "95 cm + 5 cm = ___ cm",
      "options": { "A": "90 cm", "B": "100 cm", "C": "105 cm", "D": "95 cm" },
      "correct_answer": "B"
    },
    {
      "id": 35,
      "difficulty": "Medium",
      "question": "Which object is measured in meters?",
      "options": {
        "A": "Classroom wall",
        "B": "Pencil",
        "C": "Eraser",
        "D": "Diary"
      },
      "correct_answer": "A"
    },
    {
      "id": 36,
      "difficulty": "Medium",
      "question": "A candle is 25 cm long; a stick is 1 m long. Which is longer?",
      "options": { "A": "Candle", "B": "Stick", "C": "Both same", "D": "None" },
      "correct_answer": "B"
    },
    {
      "id": 37,
      "difficulty": "Medium",
      "question": "A cloth is 1.75 m long. In cm?",
      "options": {
        "A": "175 cm",
        "B": "17.5 cm",
        "C": "1,750 cm",
        "D": "200 cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 38,
      "difficulty": "Medium",
      "question": "Which is smaller?",
      "options": { "A": "0.8 m", "B": "90 cm", "C": "Both same", "D": "1 m" },
      "correct_answer": "A"
    },
    {
      "id": 39,
      "difficulty": "Medium",
      "question": "A pipe is 3 m. In cm?",
      "options": {
        "A": "300 cm",
        "B": "30 cm",
        "C": "3,000 cm",
        "D": "330 cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 40,
      "difficulty": "Medium",
      "question": "A track is 150 cm. Is it more than 1 m?",
      "options": { "A": "Yes", "B": "No", "C": "Same", "D": "Cannot say" },
      "correct_answer": "A"
    },
    {
      "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": "3.5 m",
        "B": "350 cm",
        "C": "4 m",
        "D": "380 cm"
      },
      "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": "Which is greater?",
      "options": { "A": "3 m", "B": "290 cm", "C": "250 cm", "D": "200 cm" },
      "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": "1,750 cm",
        "D": "100 cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 47,
      "difficulty": "Hard",
      "question": "A plank is 420 cm long. In m?",
      "options": { "A": "4.2 m", "B": "42 m", "C": "0.42 m", "D": "2 m" },
      "correct_answer": "A"
    },
    {
      "id": 48,
      "difficulty": "Hard",
      "question": "Which is smallest?",
      "options": { "A": "1.25 m", "B": "125 cm", "C": "Both same", "D": "2 m" },
      "correct_answer": "C"
    },
    {
      "id": 49,
      "difficulty": "Hard",
      "question": "700 cm = ___ m",
      "options": { "A": "7 m", "B": "70 m", "C": "0.7 m", "D": "17 m" },
      "correct_answer": "A"
    },
    {
      "id": 50,
      "difficulty": "Hard",
      "question": "A pipe 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": 51,
      "difficulty": "Hard",
      "question": "Which is closest to 4 m?",
      "options": {
        "A": "380 cm",
        "B": "350 cm",
        "C": "410 cm",
        "D": "300 cm"
      },
      "correct_answer": "C"
    },
    {
      "id": 52,
      "difficulty": "Hard",
      "question": "A stick is 3.25 m long. In cm?",
      "options": {
        "A": "325 cm",
        "B": "32.5 cm",
        "C": "3025 cm",
        "D": "305 cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 53,
      "difficulty": "Hard",
      "question": "Which is longer?",
      "options": { "A": "4.5 m", "B": "450 cm", "C": "Both same", "D": "None" },
      "correct_answer": "C"
    },
    {
      "id": 54,
      "difficulty": "Hard",
      "question": "A field is 1250 cm wide. In m?",
      "options": { "A": "12.5 m", "B": "1.25 m", "C": "125 m", "D": "15 m" },
      "correct_answer": "A"
    },
    {
      "id": 55,
      "difficulty": "Hard",
      "question": "95 cm is less than 1 m because:",
      "options": {
        "A": "95 < 100",
        "B": "95 > 100",
        "C": "95 = 100",
        "D": "95 × 100"
      },
      "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": "A rod is 365 cm. In metres?",
      "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 correct?",
      "options": {
        "A": "2.05 m = 205 cm",
        "B": "2.05 m > 205 cm",
        "C": "2.05 m < 205 cm",
        "D": "None"
      },
      "correct_answer": "A"
    },
    {
      "id": 59,
      "difficulty": "Hard",
      "question": "Which is biggest?",
      "options": { "A": "4 m", "B": "350 cm", "C": "3.5 m", "D": "450 cm" },
      "correct_answer": "D"
    },
    {
      "id": 60,
      "difficulty": "Hard",
      "question": "A tree is 8.5 m tall. In cm?",
      "options": {
        "A": "850 cm",
        "B": "85 cm",
        "C": "8,500 cm",
        "D": "800 cm"
      },
      "correct_answer": "A"
    }
  ]
}