{
  "title": "Time & Money (Measurement) - Grade 5",
  "total_questions": 100,
  "questions": [
    {"id": 1, "difficulty": "easy", "question": "How many minutes are there in 2 hours?", "options": {"A": "100 minutes", "B": "120 minutes", "C": "140 minutes", "D": "160 minutes"}, "correct_answer": "B"},
    {"id": 2, "difficulty": "easy", "question": "If a toy costs ₹250 and you pay with a ₹500 note, how much change will you get back?", "options": {"A": "₹200", "B": "₹250", "C": "₹300", "D": "₹350"}, "correct_answer": "B"},
    {"id": 3, "difficulty": "easy", "question": "How many hours are there from 9:00 AM to 3:00 PM?", "options": {"A": "4 hours", "B": "5 hours", "C": "6 hours", "D": "7 hours"}, "correct_answer": "C"},
    {"id": 4, "difficulty": "easy", "question": "What is the total value of three ₹20 notes and two ₹10 notes?", "options": {"A": "₹70", "B": "₹80", "C": "₹90", "D": "₹100"}, "correct_answer": "B"},
    {"id": 5, "difficulty": "easy", "question": "If a movie starts at 5:15 PM and ends at 7:30 PM, how long is the movie?", "options": {"A": "2 hours 15 minutes", "B": "2 hours 30 minutes", "C": "2 hours 45 minutes", "D": "3 hours"}, "correct_answer": "A"},
    {"id": 6, "difficulty": "easy", "question": "How many seconds are there in 5 minutes?", "options": {"A": "250 seconds", "B": "300 seconds", "C": "350 seconds", "D": "400 seconds"}, "correct_answer": "B"},
    {"id": 7, "difficulty": "easy", "question": "You buy a book for ₹175 and a pen for ₹25. How much do you spend in total?", "options": {"A": "₹190", "B": "₹200", "C": "₹210", "D": "₹220"}, "correct_answer": "B"},
    {"id": 8, "difficulty": "easy", "question": "If it is 8:45 AM now, what time will it be in 2 hours and 15 minutes?", "options": {"A": "10:00 AM", "B": "10:30 AM", "C": "11:00 AM", "D": "11:30 AM"}, "correct_answer": "C"},
    {"id": 9, "difficulty": "easy", "question": "How many ₹5 coins make ₹100?", "options": {"A": "15 coins", "B": "18 coins", "C": "20 coins", "D": "25 coins"}, "correct_answer": "C"},
    {"id": 10, "difficulty": "easy", "question": "A bus leaves at 10:20 AM and arrives at 1:05 PM. How long is the journey?", "options": {"A": "2 hours 15 minutes", "B": "2 hours 30 minutes", "C": "2 hours 45 minutes", "D": "3 hours 15 minutes"}, "correct_answer": "C"},
    {"id": 11, "difficulty": "easy", "question": "If you have ₹500 and you spend ₹327, how much money is left?", "options": {"A": "₹163", "B": "₹173", "C": "₹183", "D": "₹193"}, "correct_answer": "B"},
    {"id": 12, "difficulty": "easy", "question": "How many days are there in the month of November?", "options": {"A": "28 days", "B": "29 days", "C": "30 days", "D": "31 days"}, "correct_answer": "C"},
    {"id": 13, "difficulty": "easy", "question": "What is 1 hour 25 minutes + 2 hours 40 minutes?", "options": {"A": "3 hours 55 minutes", "B": "4 hours", "C": "4 hours 5 minutes", "D": "4 hours 15 minutes"}, "correct_answer": "C"},
    {"id": 14, "difficulty": "easy", "question": "If a packet of chips costs ₹15, how many packets can you buy with ₹90?", "options": {"A": "4", "B": "5", "C": "6", "D": "7"}, "correct_answer": "C"},
    {"id": 15, "difficulty": "easy", "question": "What time is 30 minutes past 11:20 AM?", "options": {"A": "11:40 AM", "B": "11:50 AM", "C": "12:00 PM", "D": "12:10 PM"}, "correct_answer": "B"},
    {"id": 16, "difficulty": "easy", "question": "How many weeks are there in 35 days?", "options": {"A": "4 weeks", "B": "5 weeks", "C": "6 weeks", "D": "7 weeks"}, "correct_answer": "B"},
    {"id": 17, "difficulty": "easy", "question": "You have two ₹100 notes, three ₹50 notes, and four ₹10 notes. What is the total amount?", "options": {"A": "₹370", "B": "₹380", "C": "₹390", "D": "₹400"}, "correct_answer": "C"},
    {"id": 18, "difficulty": "easy", "question": "A class starts at 8:30 AM and lasts for 1 hour 45 minutes. What time does it end?", "options": {"A": "9:15 AM", "B": "9:45 AM", "C": "10:05 AM", "D": "10:15 AM"}, "correct_answer": "D"},
    {"id": 19, "difficulty": "easy", "question": "If an item is on sale for ₹199 and you give ₹200, how much change do you get?", "options": {"A": "₹0", "B": "₹1", "C": "₹2", "D": "₹5"}, "correct_answer": "B"},
    {"id": 20, "difficulty": "easy", "question": "How many months in a year have 31 days?", "options": {"A": "5 months", "B": "6 months", "C": "7 months", "D": "8 months"}, "correct_answer": "C"},
    {"id": 21, "difficulty": "medium", "question": "A train journey takes 4 hours 25 minutes. If it starts at 10:15 AM, when will it arrive?", "options": {"A": "2:30 PM", "B": "2:40 PM", "C": "2:50 PM", "D": "3:00 PM"}, "correct_answer": "B"},
    {"id": 22, "difficulty": "medium", "question": "Rahul bought a shirt for ₹450 and trousers for ₹550. He paid with a ₹2000 note. How much change did he get?", "options": {"A": "₹900", "B": "₹950", "C": "₹1000", "D": "₹1050"}, "correct_answer": "C"},
    {"id": 23, "difficulty": "medium", "question": "How many seconds are there in 2 hours 10 minutes?", "options": {"A": "7200 seconds", "B": "7600 seconds", "C": "7800 seconds", "D": "8000 seconds"}, "correct_answer": "C"},
    {"id": 24, "difficulty": "medium", "question": "If 12 pencils cost ₹60, what is the cost of 20 such pencils?", "options": {"A": "₹80", "B": "₹90", "C": "₹100", "D": "₹110"}, "correct_answer": "C"},
    {"id": 25, "difficulty": "medium", "question": "A movie is 2 hours 18 minutes long. It started at 3:45 PM. What time did it end?", "options": {"A": "5:53 PM", "B": "5:58 PM", "C": "6:03 PM", "D": "6:08 PM"}, "correct_answer": "C"},
    {"id": 26, "difficulty": "medium", "question": "Anita has ₹275. She wants to buy a doll for ₹199. How much money will she have left?", "options": {"A": "₹66", "B": "₹76", "C": "₹86", "D": "₹96"}, "correct_answer": "B"},
    {"id": 27, "difficulty": "medium", "question": "What is the time 100 minutes after 8:30 AM?", "options": {"A": "9:50 AM", "B": "10:00 AM", "C": "10:10 AM", "D": "10:20 AM"}, "correct_answer": "C"},
    {"id": 28, "difficulty": "medium", "question": "A box of chocolates costs ₹180. If you buy 3 boxes, how much change will you get from ₹600?", "options": {"A": "₹40", "B": "₹50", "C": "₹60", "D": "₹70"}, "correct_answer": "C"},
    {"id": 29, "difficulty": "medium", "question": "A bus takes 45 minutes to travel from Town A to Town B. If it makes 8 trips in a day, how many hours does it spend traveling?", "options": {"A": "5 hours", "B": "6 hours", "C": "7 hours", "D": "8 hours"}, "correct_answer": "B"},
    {"id": 30, "difficulty": "medium", "question": "The cost of 1 kg of apples is ₹85. How much will 2.5 kg of apples cost?", "options": {"A": "₹200.50", "B": "₹210.50", "C": "₹212.50", "D": "₹215.50"}, "correct_answer": "C"},
    {"id": 31, "difficulty": "medium", "question": "If today is Monday, what day will it be after 3 weeks and 2 days?", "options": {"A": "Monday", "B": "Tuesday", "C": "Wednesday", "D": "Thursday"}, "correct_answer": "C"},
    {"id": 32, "difficulty": "medium", "question": "A watch gains 5 minutes every hour. If it is set correctly at 9:00 AM, what time will it show at 1:00 PM?", "options": {"A": "1:10 PM", "B": "1:15 PM", "C": "1:20 PM", "D": "1:25 PM"}, "correct_answer": "C"},
    {"id": 33, "difficulty": "medium", "question": "You have ₹1000. You spend one-fifth on books and half of the remaining on stationery. How much money is left?", "options": {"A": "₹300", "B": "₹350", "C": "₹400", "D": "₹450"}, "correct_answer": "C"},
    {"id": 34, "difficulty": "medium", "question": "A flight takes off at 11:40 PM and lands at 6:25 AM the next day. What is the duration of the flight?", "options": {"A": "6 hours 15 minutes", "B": "6 hours 35 minutes", "C": "6 hours 45 minutes", "D": "7 hours 05 minutes"}, "correct_answer": "C"},
    {"id": 35, "difficulty": "medium", "question": "If 8 toys cost ₹1200, what is the cost of 15 such toys?", "options": {"A": "₹2150", "B": "₹2200", "C": "₹2250", "D": "₹2300"}, "correct_answer": "C"},
    {"id": 36, "difficulty": "medium", "question": "How many minutes are there from 10:15 AM to 1:50 PM on the same day?", "options": {"A": "205 minutes", "B": "215 minutes", "C": "225 minutes", "D": "235 minutes"}, "correct_answer": "B"},
    {"id": 37, "difficulty": "medium", "question": "A man works from 9:00 AM to 5:30 PM with a 30-minute lunch break. How many hours does he actually work?", "options": {"A": "7.5 hours", "B": "8 hours", "C": "8.5 hours", "D": "9 hours"}, "correct_answer": "B"},
    {"id": 38, "difficulty": "medium", "question": "The total cost of 4 shirts and 5 pants is ₹4700. If each shirt costs ₹500, what is the cost of one pant?", "options": {"A": "₹540", "B": "₹550", "C": "₹560", "D": "₹570"}, "correct_answer": "A"},
    {"id": 39, "difficulty": "medium", "question": "What is 3 hours 48 minutes minus 1 hour 55 minutes?", "options": {"A": "1 hour 43 minutes", "B": "1 hour 48 minutes", "C": "1 hour 53 minutes", "D": "1 hour 58 minutes"}, "correct_answer": "C"},
    {"id": 40, "difficulty": "medium", "question": "A book has 250 pages. If you read 15 pages every day, how many days will it take to finish the book?", "options": {"A": "15 days", "B": "16 days", "C": "17 days", "D": "18 days"}, "correct_answer": "C"},
    {"id": 41, "difficulty": "medium", "question": "If the time in India is 2:30 PM, what will be the time in a country that is 3 hours behind?", "options": {"A": "10:30 AM", "B": "11:00 AM", "C": "11:30 AM", "D": "12:00 PM"}, "correct_answer": "C"},
    {"id": 42, "difficulty": "medium", "question": "A person earns ₹2500 per week. How much will they earn in 5 weeks and 3 days? (Assume a 7-day week)", "options": {"A": "₹13,250", "B": "₹13,500", "C": "₹13,750", "D": "₹14,000"}, "correct_answer": "C"},
    {"id": 43, "difficulty": "medium", "question": "A clock shows 4:20. What is the smaller angle between the hour and minute hands?", "options": {"A": "5°", "B": "10°", "C": "15°", "D": "20°"}, "correct_answer": "B"},
    {"id": 44, "difficulty": "medium", "question": "You bought items for ₹175.50, ₹89.75, and ₹45.25. How much did you spend in total?", "options": {"A": "₹305.50", "B": "₹310.50", "C": "₹315.50", "D": "₹320.50"}, "correct_answer": "B"},
    {"id": 45, "difficulty": "medium", "question": "A bus leaves every 25 minutes from a station. If the first bus leaves at 6:15 AM, what time will the fifth bus leave?", "options": {"A": "7:55 AM", "B": "8:00 AM", "C": "8:05 AM", "D": "8:10 AM"}, "correct_answer": "A"},
    {"id": 46, "difficulty": "medium", "question": "If 5 chocolates cost ₹87.50, what is the cost of 12 chocolates?", "options": {"A": "₹200", "B": "₹205", "C": "₹210", "D": "₹215"}, "correct_answer": "C"},
    {"id": 47, "difficulty": "medium", "question": "A movie started at 2:45 PM and ended at 5:05 PM. There was a 15-minute intermission. What was the actual duration of the movie?", "options": {"A": "2 hours", "B": "2 hours 5 minutes", "C": "2 hours 10 minutes", "D": "2 hours 15 minutes"}, "correct_answer": "B"},
    {"id": 48, "difficulty": "medium", "question": "Riya saves ₹150 every week. How many weeks will it take her to save ₹1800?", "options": {"A": "10 weeks", "B": "11 weeks", "C": "12 weeks", "D": "13 weeks"}, "correct_answer": "C"},
    {"id": 49, "difficulty": "medium", "question": "What time was it 2 hours 40 minutes before 11:25 AM?", "options": {"A": "8:35 AM", "B": "8:40 AM", "C": "8:45 AM", "D": "8:50 AM"}, "correct_answer": "C"},
    {"id": 50, "difficulty": "medium", "question": "A family's monthly income is ₹45,000. They spend 30% on rent, 20% on food, and 15% on transportation. How much money is left for other expenses?", "options": {"A": "₹14,500", "B": "₹15,000", "C": "₹15,750", "D": "₹16,000"}, "correct_answer": "C"},
    {"id": 51, "difficulty": "medium", "question": "How many days are there from March 15 to April 20 (including both days) in a non-leap year?", "options": {"A": "35 days", "B": "36 days", "C": "37 days", "D": "38 days"}, "correct_answer": "C"},
    {"id": 52, "difficulty": "medium", "question": "A shopkeeper bought a box of 24 pens for ₹360. He sold each pen for ₹18. What was his total profit?", "options": {"A": "₹60", "B": "₹65", "C": "₹70", "D": "₹72"}, "correct_answer": "D"},
    {"id": 53, "difficulty": "medium", "question": "If 1 US dollar equals ₹75, how many dollars can you get for ₹3000?", "options": {"A": "35 dollars", "B": "38 dollars", "C": "40 dollars", "D": "42 dollars"}, "correct_answer": "C"},
    {"id": 54, "difficulty": "medium", "question": "A train is scheduled for 3:50 PM but is 35 minutes late. What time will it arrive?", "options": {"A": "4:15 PM", "B": "4:20 PM", "C": "4:25 PM", "D": "4:30 PM"}, "correct_answer": "C"},
    {"id": 55, "difficulty": "medium", "question": "You have ₹2000. You spend 40% on clothes and 25% on books. How much money is left?", "options": {"A": "₹600", "B": "₹650", "C": "₹700", "D": "₹750"}, "correct_answer": "C"},
    {"id": 56, "difficulty": "medium", "question": "A meeting starts at 10:45 AM and lasts for 2 hours 50 minutes. What time does it end?", "options": {"A": "1:25 PM", "B": "1:30 PM", "C": "1:35 PM", "D": "1:40 PM"}, "correct_answer": "C"},
    {"id": 57, "difficulty": "medium", "question": "If 12 oranges cost ₹84, what is the cost of 30 oranges?", "options": {"A": "₹200", "B": "₹205", "C": "₹210", "D": "₹215"}, "correct_answer": "C"},
    {"id": 58, "difficulty": "medium", "question": "How many seconds are in 1 day?", "options": {"A": "84,600 seconds", "B": "85,600 seconds", "C": "86,400 seconds", "D": "87,400 seconds"}, "correct_answer": "C"},
    {"id": 59, "difficulty": "medium", "question": "A car travels 60 km in 1 hour 15 minutes. What is its speed in km per hour?", "options": {"A": "46 km/h", "B": "47 km/h", "C": "48 km/h", "D": "50 km/h"}, "correct_answer": "C"},
    {"id": 60, "difficulty": "medium", "question": "A pizza costs ₹400. There is a 15% discount. What is the new price?", "options": {"A": "₹330", "B": "₹335", "C": "₹340", "D": "₹345"}, "correct_answer": "C"},
    {"id": 61, "difficulty": "medium", "question": "What is the time 3 hours 20 minutes before 8:45 PM?", "options": {"A": "5:15 PM", "B": "5:20 PM", "C": "5:25 PM", "D": "5:30 PM"}, "correct_answer": "C"},
    {"id": 62, "difficulty": "medium", "question": "If you save ₹75 every day, how much will you save in 6 weeks?", "options": {"A": "₹2,950", "B": "₹3,000", "C": "₹3,050", "D": "₹3,150"}, "correct_answer": "D"},
    {"id": 63, "difficulty": "medium", "question": "A shop offers 5% cashback on all purchases. If you buy a laptop for ₹25,000, how much cashback do you get?", "options": {"A": "₹1,000", "B": "₹1,100", "C": "₹1,200", "D": "₹1,250"}, "correct_answer": "D"},
    {"id": 64, "difficulty": "medium", "question": "How many hours and minutes is 250 minutes?", "options": {"A": "3 hours 50 minutes", "B": "4 hours 5 minutes", "C": "4 hours 10 minutes", "D": "4 hours 15 minutes"}, "correct_answer": "C"},
    {"id": 65, "difficulty": "medium", "question": "The price of a toy was reduced from ₹800 to ₹680. What is the percentage discount?", "options": {"A": "12%", "B": "13%", "C": "14%", "D": "15%"}, "correct_answer": "D"},
    {"id": 66, "difficulty": "medium", "question": "If 1 January is a Friday, what day is 31 January in the same year?", "options": {"A": "Saturday", "B": "Sunday", "C": "Monday", "D": "Tuesday"}, "correct_answer": "B"},
     {
    "id": 67,
    "difficulty": "medium",
    "question": "A water tank fills at 12 liters per minute. How long will it take to fill a 1080-liter tank?",
    "options": {"A": "1 hour 20 minutes", "B": "1 hour 25 minutes", "C": "1 hour 30 minutes", "D": "1 hour 35 minutes"},
    "correct_answer": "A"
  },
  {
    "id": 68,
    "difficulty": "medium",
    "question": "You have ₹500 in denominations of ₹10, ₹20, and ₹50 notes. If you have 15 notes in total and an equal number of ₹10 and ₹20 notes, how many ₹50 notes do you have?",
    "options": {"A": "4", "B": "5", "C": "6", "D": "7"},
    "correct_answer": "B"
  },
  {
    "id": 69,
    "difficulty": "medium",
    "question": "A bus covers 240 km in 4 hours. How long will it take to cover 420 km at the same speed?",
    "options": {"A": "7 hours", "B": "7.5 hours", "C": "6 hours", "D": "6.5 hours"},
    "correct_answer": "C"
  },
  {
    "id": 70,
    "difficulty": "medium",
    "question": "A watch loses 3 minutes every hour. If it is set correctly at 8:00 AM, what time will it show at 8:00 PM?",
    "options": {"A": "7:42 PM", "B": "7:24 PM", "C": "7:36 PM", "D": "7:30 PM"},
    "correct_answer": "D"
  },
  {
    "id": 71,
    "difficulty": "medium",
    "question": "If 15% of a number is 45, what is the number?",
    "options": {"A": "300", "B": "290", "C": "280", "D": "310"},
    "correct_answer": "A"
  },
  {
    "id": 72,
    "difficulty": "medium",
    "question": "A person works 8 hours a day, 5 days a week. How many hours do they work in 7 weeks?",
    "options": {"A": "270 hours", "B": "280 hours", "C": "260 hours", "D": "290 hours"},
    "correct_answer": "B"
  },
  {
    "id": 73,
    "difficulty": "medium",
    "question": "What is 25% of 2 hours?",
    "options": {"A": "35 minutes", "B": "25 minutes", "C": "30 minutes", "D": "40 minutes"},
    "correct_answer": "C"
  },
  {
    "id": 74,
    "difficulty": "medium",
    "question": "A product costs ₹1200. Its price is increased by 20%. What is the new price?",
    "options": {"A": "₹1,380", "B": "₹1,420", "C": "₹1,400", "D": "₹1,440"},
    "correct_answer": "D"
  },
  {
    "id": 75,
    "difficulty": "medium",
    "question": "How many minutes are between 9:10 AM and 11:35 AM?",
    "options": {"A": "145 minutes", "B": "140 minutes", "C": "150 minutes", "D": "155 minutes"},
    "correct_answer": "A"
  },
  {
    "id": 76,
    "difficulty": "medium",
    "question": "A man invests ₹5000 at 8% simple interest per year. How much interest will he earn in 3 years?",
    "options": {"A": "₹1,100", "B": "₹1,200", "C": "₹1,000", "D": "₹1,300"},
    "correct_answer": "B"
  },
  {
    "id": 77,
    "difficulty": "medium",
    "question": "If 3/4 of an hour is spent on homework, how many minutes is that?",
    "options": {"A": "40 minutes", "B": "42 minutes", "C": "45 minutes", "D": "48 minutes"},
    "correct_answer": "C"
  },
  {
    "id": 78,
    "difficulty": "medium",
    "question": "A box contains 24 chocolates. If they are to be shared equally among 5 children, how many chocolates will be left?",
    "options": {"A": "3", "B": "4", "C": "2", "D": "5"},
    "correct_answer": "D"
  },
  {
    "id": 79,
    "difficulty": "medium",
    "question": "What is the total amount if you add ₹245.75, ₹189.50, and ₹76.25?",
    "options": {"A": "₹510.50", "B": "₹509.50", "C": "₹511.50", "D": "₹512.50"},
    "correct_answer": "A"
  },
  {
    "id": 80,
    "difficulty": "medium",
    "question": "A car's fuel tank holds 45 liters. If it uses 5 liters every 60 km, how far can it travel on a full tank?",
    "options": {"A": "520 km", "B": "500 km", "C": "540 km", "D": "560 km"},
    "correct_answer": "B"
  },
  {
    "id": 81,
    "difficulty": "hard",
    "question": "A person invests ₹8000 at 10% compound interest per annum. What will be the amount after 2 years?",
    "options": {"A": "₹9,580", "B": "₹9,640", "C": "₹9,680", "D": "₹9,720"},
    "correct_answer": "C"
  },
  {
    "id": 82,
    "difficulty": "hard",
    "question": "The time in New York is 9 hours 30 minutes behind India. If it's 8:45 PM in India, what time is it in New York?",
    "options": {"A": "10:45 AM", "B": "10:15 AM", "C": "11:15 AM", "D": "11:45 AM"},
    "correct_answer": "C"
  },
  {
    "id": 83,
    "difficulty": "hard",
    "question": "A shopkeeper marks an item 40% above cost price and gives a discount of 15%. What is his profit percentage?",
    "options": {"A": "18%", "B": "17%", "C": "19%", "D": "20%"},
    "correct_answer": "A"
  },
  {
  "id": 84,
  "difficulty": "hard",
  "question": "A train leaves Delhi at 6:15 AM and reaches Mumbai at 10:30 PM the same day. The distance is 1200 km. What is the average speed of the train?",
  "options": {"A": "72 km/h", "B": "70 km/h", "C": "75 km/h", "D": "78 km/h"},
  "correct_answer": "A"
},
  {
    "id": 85,
    "difficulty": "hard",
    "question": "If 12 men can complete a work in 15 days, how many days will 18 men take?",
    "options": {"A": "9 days", "B": "8 days", "C": "10 days", "D": "11 days"},
    "correct_answer": "C"
  },
  {
    "id": 86,
    "difficulty": "hard",
    "question": "A sum of money doubles itself in 8 years at simple interest. What is the rate of interest?",
    "options": {"A": "10.5%", "B": "11.5%", "C": "12.5%", "D": "13.5%"},
    "correct_answer": "C"
  },
  {
    "id": 87,
    "difficulty": "hard",
    "question": "The cost price of 20 articles is equal to the selling price of 15 articles. What is the profit percentage?",
    "options": {"A": "25%", "B": "30%", "C": "40%", "D": "33.33%"},
    "correct_answer": "D"
  },
 {
  "id": 88,
  "difficulty": "hard", 
  "question": "A person travels at 60 km/h for the first 3 hours, 80 km/h for the next 2 hours, and 50 km/h for the last hour. What is the average speed?",
  "options": {"A": "64 km/h", "B": "62 km/h", "C": "65 km/h", "D": "68 km/h"},
  "correct_answer": "C"
},
 {
  "id": 89,
  "difficulty": "hard",
  "question": "A rectangular park is 150 m long and 100 m wide. A path 5 m wide runs inside it along the boundary. What is the area of the path?",
  "options": {"A": "2,400 sq m", "B": "2,200 sq m", "C": "2,300 sq m", "D": "2,500 sq m"},
  "correct_answer": "A"
},
  {"id":90,"difficulty":"hard","question":"The population of a town increases by 10% annually. If its current population is 50,000, what will be the population after 2 years?","options":{"A":"60,000","B":"60,500","C":"61,000","D":"59,500"},"correct_answer":"B"}
,
  {
    "id": 91,
    "difficulty": "hard",
    "question": "A mixture contains milk and water in the ratio 5:2. If 14 liters of water is added, the ratio becomes 5:4. What is the initial quantity of milk?",
    "options": {"A": "30 liters", "B": "32 liters", "C": "34 liters", "D": "35 liters"},
    "correct_answer": "A"
  },
 {
  "id": 92,
  "difficulty": "hard",
  "question": "A train 200 m long crosses a platform 300 m long in 25 seconds. What is its speed?",
  "options": {"A": "72 km/h", "B": "75 km/h", "C": "78 km/h", "D": "70 km/h"},
  "correct_answer": "A"
},
  {
    "id": 93,
    "difficulty": "hard",
    "question": "A person spends 30% of income on food, 20% on rent, 15% on education, and saves the rest. If savings are ₹3500, what is total income?",
    "options": {"A": "₹9,000", "B": "₹10,000", "C": "₹9,500", "D": "₹10,500"},
    "correct_answer": "C"
  },
 {"id":94,"difficulty":"hard","question":"The simple interest on a sum for 5 years is 2/5 of the sum. What is the rate of interest?","options":{"A":"6%","B":"7%","C":"8%","D":"9%"},"correct_answer":"C"}
,
  {
    "id": 95,
    "difficulty": "hard",
    "question": "A shopkeeper sells two items at ₹990 each. On one he gains 10%, and on the other he loses 10%. What is his overall gain/loss?",
    "options": {"A": "1% loss", "B": "2% gain", "C": "1% gain", "D": "2% loss"},
    "correct_answer": "A"
  },
  {
    "id": 96,
    "difficulty": "hard",
    "question": "A can do a work in 12 days, B in 15 days. They work together for 4 days. Then B leaves. In how many more days will A finish?",
    "options": {"A": "5 days", "B": "6 days", "C": "7 days", "D": "4 days"},
    "correct_answer": "B"
  },
  {
    "id": 97,
    "difficulty": "hard",
    "question": "The ratio of boys to girls in a school is 4:5. If there are 180 girls, how many students in total?",
    "options": {"A": "324", "B": "320", "C": "328", "D": "332"},
    "correct_answer": "B"
  },
  {
    "id": 98,
    "difficulty": "hard",
    "question": "A person bought an article and sold it at a loss of 10%. If he had bought it for 20% less and sold it for ₹90 more, he’d gain 40%. What was the cost price?",
    "options": {"A": "₹1,300", "B": "₹1,400", "C": "₹1,500", "D": "₹1,200"},
    "correct_answer": "D"
  },
  {
    "id": 99,
    "difficulty": "hard",
    "question": "A sum becomes 4 times in 20 years at simple interest. In how many years will it become 7 times?",
    "options": {"A": "35 years", "B": "40 years", "C": "38 years", "D": "42 years"},
    "correct_answer": "A"
  },
 {
  "id": 100,
  "difficulty": "hard",
  "question": "A train traveling at 72 km/h crosses a pole in 15 seconds. What is the length of the train?",
  "options": {"A": "300 m", "B": "280 m", "C": "320 m", "D": "340 m"},
  "correct_answer": "A"
}  ]
}