{
  "title": "Word Problems (Unitary Method) - Grade 4 ICSE",
  "total_questions": 60,
  "questions": [
    {
      "id": 1,
      "difficulty": "easy",
      "question": "Rohan bought 4 pencils for ₹20. What is the cost of 1 pencil? ✏️",
      "options": { "A": "₹4", "B": "₹5", "C": "₹6", "D": "₹7" },
      "correct_answer": "B"
    },
    {
      "id": 2,
      "difficulty": "easy",
      "question": "A car travels 120 km in 2 hours. How many km in 1 hour? 🚗",
      "options": { "A": "50 km", "B": "55 km", "C": "60 km", "D": "65 km" },
      "correct_answer": "C"
    },
    {
      "id": 3,
      "difficulty": "easy",
      "question": "If 3 chocolates cost ₹45, how much does 1 chocolate cost? 🍫",
      "options": { "A": "₹12", "B": "₹13", "C": "₹14", "D": "₹15" },
      "correct_answer": "D"
    },
    {
      "id": 4,
      "difficulty": "easy",
      "question": "A box has 24 sweets. How many sweets in 3 boxes? 🍬",
      "options": { "A": "60", "B": "64", "C": "72", "D": "80" },
      "correct_answer": "C"
    },
    {
      "id": 5,
      "difficulty": "easy",
      "question": "Mohan earns ₹300 in 5 days. How much in 1 day? 👨‍💼",
      "options": { "A": "₹50", "B": "₹55", "C": "₹60", "D": "₹65" },
      "correct_answer": "C"
    },
    {
      "id": 6,
      "difficulty": "easy",
      "question": "If 8 apples cost ₹160, what is the cost of 1 apple? 🍎",
      "options": { "A": "₹18", "B": "₹19", "C": "₹20", "D": "₹21" },
      "correct_answer": "C"
    },
    {
      "id": 7,
      "difficulty": "easy",
      "question": "A bus carries 50 people in 1 trip. How many in 4 trips? 🚌",
      "options": { "A": "150", "B": "180", "C": "200", "D": "220" },
      "correct_answer": "C"
    },
    {
      "id": 8,
      "difficulty": "easy",
      "question": "If 2 books cost ₹100, what is the cost of 1 book? 📚",
      "options": { "A": "₹40", "B": "₹45", "C": "₹50", "D": "₹55" },
      "correct_answer": "C"
    },
    {
      "id": 9,
      "difficulty": "easy",
      "question": "A machine makes 30 toys in 2 hours. How many in 1 hour? 🤖",
      "options": { "A": "12", "B": "14", "C": "15", "D": "16" },
      "correct_answer": "C"
    },
    {
      "id": 10,
      "difficulty": "easy",
      "question": "If 5 ice creams cost ₹125, what is the cost of 1? 🍦",
      "options": { "A": "₹20", "B": "₹22", "C": "₹24", "D": "₹25" },
      "correct_answer": "D"
    },
    {
      "id": 11,
      "difficulty": "easy",
      "question": "A man walks 18 km in 6 hours. How far in 1 hour? 🚶",
      "options": { "A": "2 km", "B": "2.5 km", "C": "3 km", "D": "3.5 km" },
      "correct_answer": "C"
    },
    {
      "id": 12,
      "difficulty": "easy",
      "question": "If 10 balloons cost ₹80, what is the cost of 1 balloon? 🎈",
      "options": { "A": "₹7", "B": "₹8", "C": "₹9", "D": "₹10" },
      "correct_answer": "B"
    },
    {
      "id": 13,
      "difficulty": "easy",
      "question": "A factory produces 80 shirts in 4 days. How many in 1 day? 👕",
      "options": { "A": "18", "B": "20", "C": "22", "D": "24" },
      "correct_answer": "B"
    },
    {
      "id": 14,
      "difficulty": "easy",
      "question": "If 6 pens cost ₹54, what is the cost of 1 pen? 🖊️",
      "options": { "A": "₹8", "B": "₹9", "C": "₹10", "D": "₹11" },
      "correct_answer": "B"
    },
    {
      "id": 15,
      "difficulty": "easy",
      "question": "A tap fills 15 litres in 3 minutes. How much in 1 minute? 🚰",
      "options": {
        "A": "4 litres",
        "B": "5 litres",
        "C": "6 litres",
        "D": "7 litres"
      },
      "correct_answer": "B"
    },
    {
      "id": 16,
      "difficulty": "easy",
      "question": "If 4 kg of rice costs ₹120, what is the cost of 1 kg? 🍚",
      "options": { "A": "₹25", "B": "₹28", "C": "₹30", "D": "₹32" },
      "correct_answer": "C"
    },
    {
      "id": 17,
      "difficulty": "easy",
      "question": "A train travels 200 km in 4 hours. How far in 1 hour? 🚂",
      "options": { "A": "40 km", "B": "45 km", "C": "50 km", "D": "55 km" },
      "correct_answer": "C"
    },
    {
      "id": 18,
      "difficulty": "easy",
      "question": "If 12 pencils cost ₹60, what is the cost of 1 pencil? ✏️",
      "options": { "A": "₹4", "B": "₹5", "C": "₹6", "D": "₹7" },
      "correct_answer": "B"
    },
    {
      "id": 19,
      "difficulty": "easy",
      "question": "A man earns ₹450 in 9 days. How much in 1 day? 💰",
      "options": { "A": "₹45", "B": "₹50", "C": "₹55", "D": "₹60" },
      "correct_answer": "B"
    },
    {
      "id": 20,
      "difficulty": "easy",
      "question": "If 3 packets of chips cost ₹75, what is the cost of 1 packet? 🥔",
      "options": { "A": "₹22", "B": "₹24", "C": "₹25", "D": "₹26" },
      "correct_answer": "C"
    },

    {
      "id": 21,
      "difficulty": "medium",
      "question": "A shopkeeper sells 7 shirts for ₹2100. How much will 4 shirts cost? 👔",
      "options": { "A": "₹1100", "B": "₹1150", "C": "₹1200", "D": "₹1250" },
      "correct_answer": "C"
    },
    {
      "id": 22,
      "difficulty": "medium",
      "question": "A car travels 240 km in 4 hours. How long to travel 360 km? 🚗",
      "options": {
        "A": "5 hours",
        "B": "5.5 hours",
        "C": "6 hours",
        "D": "6.5 hours"
      },
      "correct_answer": "C"
    },
    {
      "id": 23,
      "difficulty": "medium",
      "question": "If 15 metres of cloth cost ₹750, what is the cost of 9 metres? 👗",
      "options": { "A": "₹420", "B": "₹440", "C": "₹450", "D": "₹460" },
      "correct_answer": "C"
    },
    {
      "id": 24,
      "difficulty": "medium",
      "question": "A worker earns ₹840 in 7 days. How much will he earn in 12 days? 👷",
      "options": { "A": "₹1320", "B": "₹1360", "C": "₹1400", "D": "₹1440" },
      "correct_answer": "D"
    },
    {
      "id": 25,
      "difficulty": "medium",
      "question": "If 8 kg of sugar costs ₹400, how much sugar can be bought for ₹275? 🍬",
      "options": { "A": "5 kg", "B": "5.5 kg", "C": "6 kg", "D": "6.5 kg" },
      "correct_answer": "B"
    },
    {
      "id": 26,
      "difficulty": "medium",
      "question": "A train covers 280 km in 7 hours. How far in 10 hours? 🚂",
      "options": { "A": "380 km", "B": "390 km", "C": "400 km", "D": "410 km" },
      "correct_answer": "C"
    },
    {
      "id": 27,
      "difficulty": "medium",
      "question": "If 6 chairs cost ₹1800, what is the cost of 11 chairs? 🪑",
      "options": { "A": "₹3100", "B": "₹3200", "C": "₹3300", "D": "₹3400" },
      "correct_answer": "C"
    },
    {
      "id": 28,
      "difficulty": "medium",
      "question": "A family consumes 24 kg of wheat in 30 days. How much in 45 days? 🌾",
      "options": { "A": "34 kg", "B": "35 kg", "C": "36 kg", "D": "37 kg" },
      "correct_answer": "C"
    },
    {
      "id": 29,
      "difficulty": "medium",
      "question": "If 9 bottles of juice cost ₹360, what is the cost of 14 bottles? 🧃",
      "options": { "A": "₹540", "B": "₹550", "C": "₹560", "D": "₹570" },
      "correct_answer": "C"
    },
    {
      "id": 30,
      "difficulty": "medium",
      "question": "A printer prints 600 pages in 5 hours. How many pages in 9 hours? 🖨️",
      "options": { "A": "1000", "B": "1050", "C": "1080", "D": "1100" },
      "correct_answer": "C"
    },
    {
      "id": 31,
      "difficulty": "medium",
      "question": "If 20 eggs cost ₹120, what is the cost of 45 eggs? 🥚",
      "options": { "A": "₹250", "B": "₹260", "C": "₹270", "D": "₹280" },
      "correct_answer": "C"
    },
    {
      "id": 32,
      "difficulty": "medium",
      "question": "A cyclist covers 36 km in 4 hours. How long to cover 63 km? 🚴",
      "options": {
        "A": "6 hours",
        "B": "6.5 hours",
        "C": "7 hours",
        "D": "7.5 hours"
      },
      "correct_answer": "C"
    },
    {
      "id": 33,
      "difficulty": "medium",
      "question": "If 8 notebooks cost ₹400, what is the cost of 18 notebooks? 📓",
      "options": { "A": "₹850", "B": "₹880", "C": "₹900", "D": "₹920" },
      "correct_answer": "C"
    },
    {
      "id": 34,
      "difficulty": "medium",
      "question": "A bus uses 40 litres of diesel for 200 km. How much for 350 km? 🚌",
      "options": {
        "A": "65 litres",
        "B": "68 litres",
        "C": "70 litres",
        "D": "72 litres"
      },
      "correct_answer": "C"
    },
    {
      "id": 35,
      "difficulty": "medium",
      "question": "If 12 boxes weigh 84 kg, how much do 19 boxes weigh? 📦",
      "options": { "A": "128 kg", "B": "131 kg", "C": "133 kg", "D": "136 kg" },
      "correct_answer": "C"
    },
    {
      "id": 36,
      "difficulty": "medium",
      "question": "A typist types 360 words in 6 minutes. How many words in 11 minutes? ⌨️",
      "options": { "A": "620", "B": "640", "C": "660", "D": "680" },
      "correct_answer": "C"
    },
    {
      "id": 37,
      "difficulty": "medium",
      "question": "If 5 shirts cost ₹1250, how many shirts can be bought for ₹3000? 👕",
      "options": { "A": "10", "B": "11", "C": "12", "D": "13" },
      "correct_answer": "C"
    },
    {
      "id": 38,
      "difficulty": "medium",
      "question": "A pipe fills a tank in 15 hours. How much of the tank is filled in 5 hours? 🚰",
      "options": { "A": "1/2", "B": "1/3", "C": "1/4", "D": "1/5" },
      "correct_answer": "B"
    },
    {
      "id": 39,
      "difficulty": "medium",
      "question": "If 12 kg of apples cost ₹960, what is the cost of 9 kg? 🍎",
      "options": { "A": "₹680", "B": "₹700", "C": "₹720", "D": "₹740" },
      "correct_answer": "C"
    },
    {
      "id": 40,
      "difficulty": "medium",
      "question": "A man runs 28 km in 4 hours. How far in 9 hours? 🏃",
      "options": { "A": "58 km", "B": "60 km", "C": "62 km", "D": "63 km" },
      "correct_answer": "D"
    },

    {
      "id": 41,
      "difficulty": "hard",
      "question": "If 6 workers can build a wall in 18 days, how many days will 9 workers take? 🧱",
      "options": {
        "A": "10 days",
        "B": "11 days",
        "C": "12 days",
        "D": "13 days"
      },
      "correct_answer": "C"
    },
    {
      "id": 42,
      "difficulty": "hard",
      "question": "A garrison has food for 400 soldiers for 15 days. How long will it last for 300 soldiers? 🍛",
      "options": {
        "A": "18 days",
        "B": "19 days",
        "C": "20 days",
        "D": "21 days"
      },
      "correct_answer": "C"
    },
    {
      "id": 43,
      "difficulty": "hard",
      "question": "If 12 pumps can empty a tank in 8 hours, how long will 16 pumps take? ⛽",
      "options": {
        "A": "5 hours",
        "B": "5.5 hours",
        "C": "6 hours",
        "D": "6.5 hours"
      },
      "correct_answer": "C"
    },
    {
      "id": 44,
      "difficulty": "hard",
      "question": "A car travels 360 km in 6 hours. How long to travel 540 km? 🚗",
      "options": {
        "A": "8 hours",
        "B": "8.5 hours",
        "C": "9 hours",
        "D": "9.5 hours"
      },
      "correct_answer": "C"
    },
    {
      "id": 45,
      "difficulty": "hard",
      "question": "If 18 metres of wire cost ₹540, how much wire can be bought for ₹840? 🔌",
      "options": { "A": "26 m", "B": "27 m", "C": "28 m", "D": "29 m" },
      "correct_answer": "C"
    },
    {
      "id": 46,
      "difficulty": "hard",
      "question": "A machine produces 900 items in 12 hours. How many items in 20 hours? 🏭",
      "options": { "A": "1450", "B": "1480", "C": "1500", "D": "1520" },
      "correct_answer": "C"
    },
    {
      "id": 47,
      "difficulty": "hard",
      "question": "If 10 kg of tea costs ₹2500, what is the cost of 16 kg? 🍵",
      "options": { "A": "₹3800", "B": "₹3900", "C": "₹4000", "D": "₹4100" },
      "correct_answer": "C"
    },
    {
      "id": 48,
      "difficulty": "hard",
      "question": "A train covers 720 km in 9 hours. How far in 14 hours? 🚂",
      "options": {
        "A": "1080 km",
        "B": "1100 km",
        "C": "1120 km",
        "D": "1140 km"
      },
      "correct_answer": "C"
    },
    {
      "id": 49,
      "difficulty": "hard",
      "question": "If 15 men can do a job in 24 days, how many days will 20 men take? 👷",
      "options": { "A": "16", "B": "17", "C": "18", "D": "19" },
      "correct_answer": "C"
    },
    {
      "id": 50,
      "difficulty": "hard",
      "question": "A family uses 30 litres of milk in 15 days. How much milk in 40 days? 🥛",
      "options": {
        "A": "75 litres",
        "B": "78 litres",
        "C": "80 litres",
        "D": "82 litres"
      },
      "correct_answer": "C"
    },
    {
      "id": 51,
      "difficulty": "hard",
      "question": "If 4 pipes fill a tank in 10 hours, how long will 5 pipes take? 🚰",
      "options": {
        "A": "7 hours",
        "B": "7.5 hours",
        "C": "8 hours",
        "D": "8.5 hours"
      },
      "correct_answer": "C"
    },
    {
      "id": 52,
      "difficulty": "hard",
      "question": "A student scores 450 marks in 9 subjects. What is his average per subject? 📚",
      "options": { "A": "48", "B": "49", "C": "50", "D": "51" },
      "correct_answer": "C"
    },
    {
      "id": 53,
      "difficulty": "hard",
      "question": "If 8 cars carry 320 people, how many people can 13 cars carry? 🚗",
      "options": { "A": "500", "B": "510", "C": "520", "D": "530" },
      "correct_answer": "C"
    },
    {
      "id": 54,
      "difficulty": "hard",
      "question": "A printer prints 1800 pages in 12 hours. How many pages in 20 hours? 🖨️",
      "options": { "A": "2900", "B": "2950", "C": "3000", "D": "3050" },
      "correct_answer": "C"
    },
    {
      "id": 55,
      "difficulty": "hard",
      "question": "If 5 machines produce 1500 items in 10 days, how many items will 8 machines produce in 12 days? 🏭",
      "options": { "A": "2680", "B": "2780", "C": "2880", "D": "2980" },
      "correct_answer": "C"
    },
    {
      "id": 56,
      "difficulty": "hard",
      "question": "A man earns ₹9600 in 16 days. How much will he earn in 30 days? 💰",
      "options": { "A": "₹17000", "B": "₹17500", "C": "₹18000", "D": "₹18500" },
      "correct_answer": "C"
    },
    {
      "id": 57,
      "difficulty": "hard",
      "question": "If 25 metres of rope cost ₹625, what is the cost of 40 metres? 🧵",
      "options": { "A": "₹980", "B": "₹990", "C": "₹1000", "D": "₹1010" },
      "correct_answer": "C"
    },
    {
      "id": 58,
      "difficulty": "hard",
      "question": "A bus travels 480 km in 8 hours. How long to travel 720 km? 🚌",
      "options": {
        "A": "11 hours",
        "B": "12 hours",
        "C": "13 hours",
        "D": "14 hours"
      },
      "correct_answer": "B"
    },
    {
      "id": 59,
      "difficulty": "hard",
      "question": "If 8 kg of ghee costs ₹2000, how much ghee can be bought for ₹4500? 🧈",
      "options": { "A": "16 kg", "B": "17 kg", "C": "18 kg", "D": "19 kg" },
      "correct_answer": "C"
    },
    {
      "id": 60,
      "difficulty": "hard",
      "question": "A factory produces 1260 toys in 14 days. How many toys in 30 days? 🤖",
      "options": { "A": "2600", "B": "2650", "C": "2700", "D": "2750" },
      "correct_answer": "C"
    }
  ]
}