{
  "title": "Percentage Increase/Decrease - Grade 6 ICSE",
  "total_questions": 60,
  "questions": [
    {
      "id": 1,
      "difficulty": "easy",
      "question": "Price increased from ₹100 to ₹120. % increase? 📈",
      "options": { "A": "15%", "B": "18%", "C": "20%", "D": "25%" },
      "correct_answer": "C"
    },
    {
      "id": 2,
      "difficulty": "easy",
      "question": "Salary decreased from ₹500 to ₹400. % decrease? 📉",
      "options": { "A": "15%", "B": "18%", "C": "20%", "D": "25%" },
      "correct_answer": "C"
    },
    {
      "id": 3,
      "difficulty": "easy",
      "question": "Weight increased from 40kg to 50kg. % increase? ⚖️",
      "options": { "A": "20%", "B": "22%", "C": "24%", "D": "25%" },
      "correct_answer": "D"
    },
    {
      "id": 4,
      "difficulty": "easy",
      "question": "Marks decreased from 80 to 60. % decrease? 📝",
      "options": { "A": "20%", "B": "22%", "C": "24%", "D": "25%" },
      "correct_answer": "D"
    },
    {
      "id": 5,
      "difficulty": "easy",
      "question": "Population increased from 200 to 250. % increase? 👥",
      "options": { "A": "20%", "B": "22%", "C": "24%", "D": "25%" },
      "correct_answer": "D"
    },
    {
      "id": 6,
      "difficulty": "easy",
      "question": "Temperature decreased from 40°C to 30°C. % decrease? 🌡️",
      "options": { "A": "20%", "B": "22%", "C": "24%", "D": "25%" },
      "correct_answer": "D"
    },
    {
      "id": 7,
      "difficulty": "easy",
      "question": "Price increased from ₹50 to ₹60. % increase? 💰",
      "options": { "A": "18%", "B": "20%", "C": "22%", "D": "25%" },
      "correct_answer": "B"
    },
    {
      "id": 8,
      "difficulty": "easy",
      "question": "Height decreased from 150cm to 120cm. % decrease? 📏",
      "options": { "A": "18%", "B": "20%", "C": "22%", "D": "25%" },
      "correct_answer": "B"
    },
    {
      "id": 9,
      "difficulty": "easy",
      "question": "Speed increased from 40km/h to 50km/h. % increase? 🚗",
      "options": { "A": "20%", "B": "22%", "C": "24%", "D": "25%" },
      "correct_answer": "D"
    },
    {
      "id": 10,
      "difficulty": "easy",
      "question": "Number decreased from 120 to 90. % decrease? 🔢",
      "options": { "A": "20%", "B": "22%", "C": "24%", "D": "25%" },
      "correct_answer": "D"
    },
    {
      "id": 11,
      "difficulty": "easy",
      "question": "Price increased from ₹80 to ₹100. % increase? 🏷️",
      "options": { "A": "20%", "B": "22%", "C": "24%", "D": "25%" },
      "correct_answer": "D"
    },
    {
      "id": 12,
      "difficulty": "easy",
      "question": "Score decreased from 50 to 40. % decrease? 🎯",
      "options": { "A": "18%", "B": "20%", "C": "22%", "D": "25%" },
      "correct_answer": "B"
    },
    {
      "id": 13,
      "difficulty": "easy",
      "question": "Quantity increased from 60 to 75. % increase? 📦",
      "options": { "A": "20%", "B": "22%", "C": "24%", "D": "25%" },
      "correct_answer": "D"
    },
    {
      "id": 14,
      "difficulty": "easy",
      "question": "Length decreased from 200cm to 160cm. % decrease? 📐",
      "options": { "A": "18%", "B": "20%", "C": "22%", "D": "25%" },
      "correct_answer": "B"
    },
    {
      "id": 15,
      "difficulty": "easy",
      "question": "Value increased from ₹90 to ₹108. % increase? 💎",
      "options": { "A": "18%", "B": "20%", "C": "22%", "D": "25%" },
      "correct_answer": "B"
    },
    {
      "id": 16,
      "difficulty": "easy",
      "question": "Weight decreased from 80kg to 64kg. % decrease? ⚖️",
      "options": { "A": "18%", "B": "20%", "C": "22%", "D": "25%" },
      "correct_answer": "B"
    },
    {
      "id": 17,
      "difficulty": "easy",
      "question": "Price increased from ₹120 to ₹150. % increase? 📈",
      "options": { "A": "20%", "B": "22%", "C": "24%", "D": "25%" },
      "correct_answer": "D"
    },
    {
      "id": 18,
      "difficulty": "easy",
      "question": "Amount decreased from ₹200 to ₹150. % decrease? 📉",
      "options": { "A": "20%", "B": "22%", "C": "24%", "D": "25%" },
      "correct_answer": "D"
    },
    {
      "id": 19,
      "difficulty": "easy",
      "question": "Speed increased from 60km/h to 72km/h. % increase? 🚀",
      "options": { "A": "18%", "B": "20%", "C": "22%", "D": "25%" },
      "correct_answer": "B"
    },
    {
      "id": 20,
      "difficulty": "easy",
      "question": "Temperature decreased from 80°F to 64°F. % decrease? ❄️",
      "options": { "A": "18%", "B": "20%", "C": "22%", "D": "25%" },
      "correct_answer": "B"
    },
    {
      "id": 21,
      "difficulty": "medium",
      "question": "Original: ₹500, increased by 20%. New price? 📈",
      "options": { "A": "₹580", "B": "₹590", "C": "₹600", "D": "₹610" },
      "correct_answer": "C"
    },
    {
      "id": 22,
      "difficulty": "medium",
      "question": "Original: 80 marks, decreased by 15%. New marks? 📉",
      "options": { "A": "66", "B": "67", "C": "68", "D": "69" },
      "correct_answer": "C"
    },
    {
      "id": 23,
      "difficulty": "medium",
      "question": "Salary: ₹8000, increased by 25%. New salary? 💰",
      "options": { "A": "₹9800", "B": "₹9900", "C": "₹10000", "D": "₹10100" },
      "correct_answer": "C"
    },
    {
      "id": 24,
      "difficulty": "medium",
      "question": "Population: 2000, decreased by 30%. New population? 👥",
      "options": { "A": "1380", "B": "1390", "C": "1400", "D": "1410" },
      "correct_answer": "C"
    },
    {
      "id": 25,
      "difficulty": "medium",
      "question": "Price: ₹1200, increased by 15%. New price? 🏷️",
      "options": { "A": "₹1370", "B": "₹1375", "C": "₹1380", "D": "₹1385" },
      "correct_answer": "C"
    },
    {
      "id": 26,
      "difficulty": "medium",
      "question": "Weight: 50kg, decreased by 12%. New weight? ⚖️",
      "options": { "A": "43kg", "B": "43.5kg", "C": "44kg", "D": "44.5kg" },
      "correct_answer": "C"
    },
    {
      "id": 27,
      "difficulty": "medium",
      "question": "Height: 160cm, increased by 5%. New height? 📏",
      "options": { "A": "167cm", "B": "168cm", "C": "169cm", "D": "170cm" },
      "correct_answer": "B"
    },
    {
      "id": 28,
      "difficulty": "medium",
      "question": "Speed: 40km/h, decreased by 20%. New speed? 🚗",
      "options": { "A": "31km/h", "B": "32km/h", "C": "33km/h", "D": "34km/h" },
      "correct_answer": "B"
    },
    {
      "id": 29,
      "difficulty": "medium",
      "question": "Price: ₹900, increased by 8%. New price? 💎",
      "options": { "A": "₹970", "B": "₹971", "C": "₹972", "D": "₹973" },
      "correct_answer": "C"
    },
    {
      "id": 30,
      "difficulty": "medium",
      "question": "Marks: 75, decreased by 16%. New marks? 📝",
      "options": { "A": "62", "B": "62.5", "C": "63", "D": "63.5" },
      "correct_answer": "C"
    },
    {
      "id": 31,
      "difficulty": "medium",
      "question": "Value: ₹600, increased by 18%. New value? 📈",
      "options": { "A": "₹706", "B": "₹707", "C": "₹708", "D": "₹709" },
      "correct_answer": "C"
    },
    {
      "id": 32,
      "difficulty": "medium",
      "question": "Length: 200m, decreased by 9%. New length? 📐",
      "options": { "A": "181m", "B": "182m", "C": "183m", "D": "184m" },
      "correct_answer": "B"
    },
    {
      "id": 33,
      "difficulty": "medium",
      "question": "Salary: ₹15000, increased by 12%. New salary? 💵",
      "options": { "A": "₹16780", "B": "₹16790", "C": "₹16800", "D": "₹16810" },
      "correct_answer": "C"
    },
    {
      "id": 34,
      "difficulty": "medium",
      "question": "Temperature: 30°C, decreased by 40%. New temp? 🌡️",
      "options": { "A": "17°C", "B": "18°C", "C": "19°C", "D": "20°C" },
      "correct_answer": "B"
    },
    {
      "id": 35,
      "difficulty": "medium",
      "question": "Price: ₹750, increased by 24%. New price? 🛍️",
      "options": { "A": "₹929", "B": "₹930", "C": "₹931", "D": "₹932" },
      "correct_answer": "B"
    },
    {
      "id": 36,
      "difficulty": "medium",
      "question": "Weight: 64kg, decreased by 25%. New weight? ⚖️",
      "options": { "A": "47kg", "B": "47.5kg", "C": "48kg", "D": "48.5kg" },
      "correct_answer": "C"
    },
    {
      "id": 37,
      "difficulty": "medium",
      "question": "Number: 150, increased by 16%. New number? 🔢",
      "options": { "A": "173", "B": "174", "C": "175", "D": "176" },
      "correct_answer": "B"
    },
    {
      "id": 38,
      "difficulty": "medium",
      "question": "Distance: 80km, decreased by 15%. New distance? 🛣️",
      "options": { "A": "67km", "B": "67.5km", "C": "68km", "D": "68.5km" },
      "correct_answer": "C"
    },
    {
      "id": 39,
      "difficulty": "medium",
      "question": "Value: ₹850, increased by 8%. New value? 💰",
      "options": { "A": "₹917", "B": "₹918", "C": "₹919", "D": "₹920" },
      "correct_answer": "B"
    },
    {
      "id": 40,
      "difficulty": "medium",
      "question": "Score: 90, decreased by 20%. New score? 🎯",
      "options": { "A": "71", "B": "72", "C": "73", "D": "74" },
      "correct_answer": "B"
    },
    {
      "id": 41,
      "difficulty": "hard",
      "question": "After 20% increase, price = ₹1200. Original? 🔍",
      "options": { "A": "₹995", "B": "₹1000", "C": "₹1005", "D": "₹1010" },
      "correct_answer": "B"
    },
    {
      "id": 42,
      "difficulty": "hard",
      "question": "After 15% decrease, marks = 68. Original? 📝",
      "options": { "A": "79", "B": "79.5", "C": "80", "D": "80.5" },
      "correct_answer": "C"
    },
    {
      "id": 43,
      "difficulty": "hard",
      "question": "After 25% increase, salary = ₹25000. Original? 💰",
      "options": { "A": "₹19900", "B": "₹19950", "C": "₹20000", "D": "₹20050" },
      "correct_answer": "C"
    },
    {
      "id": 44,
      "difficulty": "hard",
      "question": "After 30% decrease, population = 1400. Original? 👥",
      "options": { "A": "1995", "B": "2000", "C": "2005", "D": "2010" },
      "correct_answer": "B"
    },
    {
      "id": 45,
      "difficulty": "hard",
      "question": "After 12% increase, height = 168cm. Original? 📏",
      "options": { "A": "149cm", "B": "149.5cm", "C": "150cm", "D": "150.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 46,
      "difficulty": "hard",
      "question": "After 18% decrease, weight = 41kg. Original? ⚖️",
      "options": { "A": "49.5kg", "B": "50kg", "C": "50.5kg", "D": "51kg" },
      "correct_answer": "B"
    },
    {
      "id": 47,
      "difficulty": "hard",
      "question": "After 8% increase, price = ₹972. Original? 🏷️",
      "options": { "A": "₹899", "B": "₹900", "C": "₹901", "D": "₹902" },
      "correct_answer": "B"
    },
    {
      "id": 48,
      "difficulty": "hard",
      "question": "After 16% decrease, score = 63. Original? 🎯",
      "options": { "A": "74.5", "B": "75", "C": "75.5", "D": "76" },
      "correct_answer": "B"
    },
    {
      "id": 49,
      "difficulty": "hard",
      "question": "After 24% increase, value = ₹930. Original? 💎",
      "options": { "A": "₹749", "B": "₹750", "C": "₹751", "D": "₹752" },
      "correct_answer": "B"
    },
    {
      "id": 50,
      "difficulty": "hard",
      "question": "After 9% decrease, length = 182m. Original? 📐",
      "options": { "A": "199.5m", "B": "200m", "C": "200.5m", "D": "201m" },
      "correct_answer": "B"
    },
    {
      "id": 51,
      "difficulty": "hard",
      "question": "Price increased by 20%, then decreased by 20%. Net %? 🔄",
      "options": {
        "A": "2% decrease",
        "B": "4% decrease",
        "C": "No change",
        "D": "2% increase"
      },
      "correct_answer": "B"
    },
    {
      "id": 52,
      "difficulty": "hard",
      "question": "Salary decreased by 10%, then increased by 10%. Net %? 💵",
      "options": {
        "A": "1% decrease",
        "B": "No change",
        "C": "1% increase",
        "D": "2% decrease"
      },
      "correct_answer": "A"
    },
    {
      "id": 53,
      "difficulty": "hard",
      "question": "If price increased by 25% then decreased by 20%, net %? 📈📉",
      "options": {
        "A": "No change",
        "B": "5% increase",
        "C": "5% decrease",
        "D": "2% increase"
      },
      "correct_answer": "A"
    },
    {
      "id": 54,
      "difficulty": "hard",
      "question": "First increased by 30%, then decreased by 30%. Net %? 🔄",
      "options": {
        "A": "9% decrease",
        "B": "9% increase",
        "C": "No change",
        "D": "6% decrease"
      },
      "correct_answer": "A"
    },
    {
      "id": 55,
      "difficulty": "hard",
      "question": "Decreased by 15%, then increased by 20%. Net %? 📉📈",
      "options": {
        "A": "2% increase",
        "B": "2% decrease",
        "C": "No change",
        "D": "5% increase"
      },
      "correct_answer": "A"
    },
    {
      "id": 56,
      "difficulty": "hard",
      "question": "Original ₹1000, increased by 10% then 20%. Final? 📈",
      "options": { "A": "₹1310", "B": "₹1320", "C": "₹1330", "D": "₹1340" },
      "correct_answer": "B"
    },
    {
      "id": 57,
      "difficulty": "hard",
      "question": "Original 200kg, decreased by 20% then 10%. Final? ⚖️",
      "options": { "A": "143kg", "B": "144kg", "C": "145kg", "D": "146kg" },
      "correct_answer": "B"
    },
    {
      "id": 58,
      "difficulty": "hard",
      "question": "If increased by 25% gives 500, then decreased by 20% gives? 🔄",
      "options": { "A": "₹320", "B": "₹330", "C": "₹340", "D": "₹350" },
      "correct_answer": "A"
    },
    {
      "id": 59,
      "difficulty": "hard",
      "question": "Price increased by 20% then decreased by 25%. Net %? 📈📉",
      "options": {
        "A": "8% decrease",
        "B": "9% decrease",
        "C": "10% decrease",
        "D": "12% decrease"
      },
      "correct_answer": "C"
    },
    {
      "id": 60,
      "difficulty": "hard",
      "question": "Salary decreased by 15% then increased by 20%. Net %? 📉📈",
      "options": {
        "A": "1% increase",
        "B": "2% increase",
        "C": "3% increase",
        "D": "4% increase"
      },
      "correct_answer": "B"
    }
  ]
}