{
  "title": "Discount (Comparing Quantities) - Grade 8 CBSE",
  "total_questions": 100,
  "questions": [
    {"id": 1, "difficulty": "easy", "question": "A book costs ₹200. If there is a 10% discount, what is the discount amount?", "options": {"A": "₹10", "B": "₹15", "C": "₹20", "D": "₹25"}, "correct_answer": "C"},
    {"id": 2, "difficulty": "easy", "question": "A shirt marked at ₹500 has a 20% discount. What is the sale price?", "options": {"A": "₹400", "B": "₹450", "C": "₹300", "D": "₹350"}, "correct_answer": "A"},
    {"id": 3, "difficulty": "easy", "question": "A toy costs ₹800 with a 25% discount. What is the discount amount?", "options": {"A": "₹150", "B": "₹200", "C": "₹250", "D": "₹300"}, "correct_answer": "B"},
    {"id": 4, "difficulty": "easy", "question": "If a ₹1000 item has 15% discount, how much do you pay?", "options": {"A": "₹750", "B": "₹800", "C": "₹850", "D": "₹900"}, "correct_answer": "C"},
    {"id": 5, "difficulty": "easy", "question": "A ₹150 pen with 10% discount costs how much?", "options": {"A": "₹135", "B": "₹140", "C": "₹130", "D": "₹125"}, "correct_answer": "A"},
    {"id": 6, "difficulty": "easy", "question": "What is 30% of ₹600 as discount?", "options": {"A": "₹150", "B": "₹180", "C": "₹200", "D": "₹120"}, "correct_answer": "B"},
    {"id": 7, "difficulty": "easy", "question": "After 5% discount on ₹400, the price is?", "options": {"A": "₹370", "B": "₹375", "C": "₹380", "D": "₹385"}, "correct_answer": "C"},
    {"id": 8, "difficulty": "easy", "question": "A bicycle costs ₹3000 with 8% discount. What's the discount?", "options": {"A": "₹220", "B": "₹240", "C": "₹260", "D": "₹280"}, "correct_answer": "B"},
    {"id": 9, "difficulty": "easy", "question": "₹2500 laptop with 12% discount costs?", "options": {"A": "₹2150", "B": "₹2200", "C": "₹2250", "D": "₹2300"}, "correct_answer": "B"},
    {"id": 10, "difficulty": "easy", "question": "20% off ₹750 gives discount of?", "options": {"A": "₹140", "B": "₹150", "C": "₹160", "D": "₹170"}, "correct_answer": "B"},
    {"id": 11, "difficulty": "easy", "question": "A watch priced ₹1200 has 15% off. Sale price is?", "options": {"A": "₹1000", "B": "₹1020", "C": "₹1040", "D": "₹1080"}, "correct_answer": "B"},
    {"id": 12, "difficulty": "easy", "question": "If discount is ₹60 on ₹400 item, discount % is?", "options": {"A": "12%", "B": "13%", "C": "14%", "D": "15%"}, "correct_answer": "D"},
    {"id": 13, "difficulty": "easy", "question": "25% discount on ₹1600 equals?", "options": {"A": "₹350", "B": "₹375", "C": "₹400", "D": "₹425"}, "correct_answer": "C"},
    {"id": 14, "difficulty": "easy", "question": "After 30% discount, ₹1400 item costs?", "options": {"A": "₹960", "B": "₹970", "C": "₹980", "D": "₹990"}, "correct_answer": "C"},
    {"id": 15, "difficulty": "easy", "question": "₹900 with 10% discount = ?", "options": {"A": "₹800", "B": "₹810", "C": "₹820", "D": "₹830"}, "correct_answer": "B"},
    {"id": 16, "difficulty": "easy", "question": "18% of ₹500 as discount is?", "options": {"A": "₹85", "B": "₹88", "C": "₹90", "D": "₹92"}, "correct_answer": "C"},
    {"id": 17, "difficulty": "easy", "question": "If you pay ₹680 after 15% discount, original price was?", "options": {"A": "₹780", "B": "₹790", "C": "₹800", "D": "₹810"}, "correct_answer": "C"},
    {"id": 18, "difficulty": "easy", "question": "7% discount on ₹2000 = ?", "options": {"A": "₹135", "B": "₹140", "C": "₹145", "D": "₹150"}, "correct_answer": "B"},
    {"id": 19, "difficulty": "easy", "question": "After 22% discount, ₹2500 becomes?", "options": {"A": "₹1930", "B": "₹1940", "C": "₹1950", "D": "₹1960"}, "correct_answer": "C"},
    {"id": 20, "difficulty": "easy", "question": "Discount of ₹150 on ₹750 is what %?", "options": {"A": "18%", "B": "19%", "C": "20%", "D": "21%"}, "correct_answer": "C"},
    {"id": 21, "difficulty": "medium", "question": "A shop offers 20% + 10% successive discounts. What is single equivalent discount?", "options": {"A": "28%", "B": "29%", "C": "30%", "D": "31%"}, "correct_answer": "A"},
    {"id": 22, "difficulty": "medium", "question": "If marked price is 25% above cost and 10% discount given, profit % is?", "options": {"A": "10.5%", "B": "11.5%", "C": "12.5%", "D": "13.5%"}, "correct_answer": "C"},
    {"id": 23, "difficulty": "medium", "question": "After two discounts of 15% and 5%, item costs ₹8075. Marked price was?", "options": {"A": "₹9500", "B": "₹10000", "C": "₹10500", "D": "₹11000"}, "correct_answer": "B"},
    {"id": 24, "difficulty": "medium", "question": "If 20% discount equals 30% profit, cost:marked price ratio?", "options": {"A": "2:3", "B": "8:13", "C": "4:7", "D": "5:8"}, "correct_answer": "B"},
    {"id": 25, "difficulty": "medium", "question": "Successive discounts 10%, 20%, 25% equal to single discount?", "options": {"A": "46%", "B": "47%", "C": "48%", "D": "49%"}, "correct_answer": "A"},
    {"id": 26, "difficulty": "medium", "question": "Marked price ₹x, sold at ₹0.72x after discount. Discount %?", "options": {"A": "26%", "B": "27%", "C": "28%", "D": "29%"}, "correct_answer": "C"},
    {"id": 27, "difficulty": "medium", "question": "If discount doubles, sale price decreases by 150. Original discount?", "options": {"A": "₹100", "B": "₹125", "C": "₹150", "D": "₹175"}, "correct_answer": "C"},
    {"id": 28, "difficulty": "medium", "question": "10% discount then 20% discount equals how much total discount?", "options": {"A": "27%", "B": "28%", "C": "29%", "D": "30%"}, "correct_answer": "B"},
    {"id": 29, "difficulty": "medium", "question": "After 12.5% discount, price ₹875. Marked price?", "options": {"A": "₹980", "B": "₹990", "C": "₹1000", "D": "₹1010"}, "correct_answer": "C"},
    {"id": 30, "difficulty": "medium", "question": "If 15% discount given, still 20% profit. Cost:marked price?", "options": {"A": "16:23", "B": "17:24", "C": "15:22", "D": "14:21"}, "correct_answer": "B"},
    {"id": 31, "difficulty": "medium", "question": "Discount 16% equals profit 20% on cost ₹500. Marked price?", "options": {"A": "₹700", "B": "₹725", "C": "₹750", "D": "₹775"}, "correct_answer": "C"},
    {"id": 32, "difficulty": "medium", "question": "Three successive discounts 10% each equals single discount?", "options": {"A": "26.1%", "B": "27.1%", "C": "28.1%", "D": "29.1%"}, "correct_answer": "B"},
    {"id": 33, "difficulty": "medium", "question": "If 30% discount, lose 10%. To gain 20%, discount % should be?", "options": {"A": "10%", "B": "12%", "C": "14%", "D": "16%"}, "correct_answer": "C"},
    {"id": 34, "difficulty": "medium", "question": "Marked price ₹800, discounts 20% and x% to ₹576. x=?", "options": {"A": "8%", "B": "9%", "C": "10%", "D": "11%"}, "correct_answer": "C"},
    {"id": 35, "difficulty": "medium", "question": "Discount 25% then 20% equals overall discount?", "options": {"A": "40%", "B": "42%", "C": "44%", "D": "45%"}, "correct_answer": "A"},
    {"id": 36, "difficulty": "medium", "question": "If marked price 40% above cost and 10% discount, profit?", "options": {"A": "24%", "B": "25%", "C": "26%", "D": "27%"}, "correct_answer": "C"},
    {"id": 37, "difficulty": "medium", "question": "After discount 12%, price ₹1100. Original?", "options": {"A": "₹1235", "B": "₹1240", "C": "₹1245", "D": "₹1250"}, "correct_answer": "D"},
    {"id": 38, "difficulty": "medium", "question": "Three items: 20%, 25%, 30% off respectively. Average discount?", "options": {"A": "24%", "B": "25%", "C": "26%", "D": "27%"}, "correct_answer": "B"},
    {"id": 39, "difficulty": "medium", "question": "If 15% discount on marked price gives 5% loss, profit at no discount?", "options": {"A": "10.53%", "B": "11.53%", "C": "12.53%", "D": "13.53%"}, "correct_answer": "B"},
    {"id": 40, "difficulty": "medium", "question": "Successive discounts 20% and 15% equal to?", "options": {"A": "32%", "B": "33%", "C": "34%", "D": "35%"}, "correct_answer": "A"},
    {"id": 41, "difficulty": "medium", "question": "Marked price ₹1200, two discounts of 10% each. Final price?", "options": {"A": "₹950", "B": "₹960", "C": "₹970", "D": "₹972"}, "correct_answer": "D"},
    {"id": 42, "difficulty": "medium", "question": "If discount 1/5 of marked price, discount %?", "options": {"A": "18%", "B": "19%", "C": "20%", "D": "21%"}, "correct_answer": "C"},
    {"id": 43, "difficulty": "medium", "question": "25% discount then ₹100 off equals 40% total discount. Marked price?", "options": {"A": "₹1800", "B": "₹1900", "C": "₹2000", "D": "₹2100"}, "correct_answer": "C"},
    {"id": 44, "difficulty": "medium", "question": "After 16⅔% discount, price ₹500. Marked price?", "options": {"A": "₹590", "B": "₹595", "C": "₹600", "D": "₹605"}, "correct_answer": "C"},
    {"id": 45, "difficulty": "medium", "question": "If 10% discount on marked price = 25% profit. Cost:marked price?", "options": {"A": "2:3", "B": "7:10", "C": "3:4", "D": "8:11"}, "correct_answer": "D"},
    {"id": 46, "difficulty": "medium", "question": "Two successive discounts make overall 28%. If first 20%, second?", "options": {"A": "8%", "B": "9%", "C": "10%", "D": "11%"}, "correct_answer": "C"},
    {"id": 47, "difficulty": "medium", "question": "Discount 30% then 10% equals single discount?", "options": {"A": "36%", "B": "37%", "C": "38%", "D": "39%"}, "correct_answer": "B"},
    {"id": 48, "difficulty": "medium", "question": "If discount 37.5% of marked price, what fraction is discount?", "options": {"A": "3/7", "B": "3/8", "C": "3/9", "D": "3/10"}, "correct_answer": "B"},
    {"id": 49, "difficulty": "medium", "question": "Marked price ₹x, after 20% discount price ₹0.8x. After 25% discount?", "options": {"A": "0.7x", "B": "0.72x", "C": "0.75x", "D": "0.78x"}, "correct_answer": "C"},
    {"id": 50, "difficulty": "medium", "question": "Three items: discounts 12%, 15%, 18%. Average discount?", "options": {"A": "14%", "B": "14.5%", "C": "15%", "D": "15.5%"}, "correct_answer": "C"},
    {"id": 51, "difficulty": "medium", "question": "If 20% discount gives 10% profit, what discount for 20% profit?", "options": {"A": "10.91%", "B": "11.91%", "C": "12.91%", "D": "13.91%"}, "correct_answer": "A"},
    {"id": 52, "difficulty": "medium", "question": "Successive discounts 25% and 20% equal to?", "options": {"A": "40%", "B": "42%", "C": "44%", "D": "45%"}, "correct_answer": "A"},
    {"id": 53, "difficulty": "medium", "question": "After 33⅓% discount, price ₹400. Marked price?", "options": {"A": "₹590", "B": "₹595", "C": "₹600", "D": "₹605"}, "correct_answer": "C"},
    {"id": 54, "difficulty": "medium", "question": "If 15% discount then 10% discount equals?", "options": {"A": "23.5%", "B": "24.5%", "C": "25.5%", "D": "26.5%"}, "correct_answer": "A"},
    {"id": 55, "difficulty": "medium", "question": "Marked price 50% above cost. After discount, sold at 20% profit. Discount %?", "options": {"A": "18%", "B": "19%", "C": "20%", "D": "21%"}, "correct_answer": "C"},
    {"id": 56, "difficulty": "medium", "question": "If discount triples, price decreases ₹600. Original discount?", "options": {"A": "₹200", "B": "₹225", "C": "₹250", "D": "₹275"}, "correct_answer": "C"},
    {"id": 57, "difficulty": "medium", "question": "Successive discounts 10%, 15%, 20% equal to?", "options": {"A": "38.8%", "B": "39.8%", "C": "40.8%", "D": "41.8%"}, "correct_answer": "A"},
    {"id": 58, "difficulty": "medium", "question": "If 25% discount = 15% profit, cost:marked price?", "options": {"A": "15:22", "B": "16:23", "C": "17:24", "D": "18:25"}, "correct_answer": "C"},
    {"id": 59, "difficulty": "medium", "question": "After discount of 1/6, price ₹2500. Original?", "options": {"A": "₹2950", "B": "₹2980", "C": "₹3000", "D": "₹3020"}, "correct_answer": "C"},
    {"id": 60, "difficulty": "medium", "question": "If 30% discount gives 5% loss, what discount for 10% profit?", "options": {"A": "16.36%", "B": "17.36%", "C": "18.36%", "D": "19.36%"}, "correct_answer": "B"},
    {"id": 61, "difficulty": "medium", "question": "Marked price ₹900, successive discounts 10% and x% to ₹648. x=?", "options": {"A": "18%", "B": "19%", "C": "20%", "D": "21%"}, "correct_answer": "C"},
    {"id": 62, "difficulty": "medium", "question": "Discount 22% then 18% equals single discount?", "options": {"A": "36.04%", "B": "37.04%", "C": "38.04%", "D": "39.04%"}, "correct_answer": "A"},
    {"id": 63, "difficulty": "medium", "question": "If marked price 60% above cost and 25% discount, profit?", "options": {"A": "18%", "B": "19%", "C": "20%", "D": "21%"}, "correct_answer": "C"},
    {"id": 64, "difficulty": "medium", "question": "After 17.5% discount, price ₹660. Marked price?", "options": {"A": "₹795", "B": "₹798", "C": "₹800", "D": "₹802"}, "correct_answer": "C"},
    {"id": 65, "difficulty": "medium", "question": "Three discounts: 8%, 12%, 15% equal to?", "options": {"A": "30.824%", "B": "31.824%", "C": "32.824%", "D": "33.824%"}, "correct_answer": "B"},
    {"id": 66, "difficulty": "medium", "question": "If discount 2/9 of marked price, discount %?", "options": {"A": "21.11%", "B": "22.22%", "C": "23.33%", "D": "24.44%"}, "correct_answer": "B"},
    {"id": 67, "difficulty": "medium", "question": "Marked price ₹x, after 30% discount = 0.7x. After 40% discount?", "options": {"A": "0.58x", "B": "0.6x", "C": "0.62x", "D": "0.64x"}, "correct_answer": "B"},
    {"id": 68, "difficulty": "medium", "question": "If 12% discount gives 8% profit, what discount for 15% profit?", "options": {"A": "6.25%", "B": "7.25%", "C": "8.25%", "D": "9.25%"}, "correct_answer": "A"},
    {"id": 69, "difficulty": "medium", "question": "Successive discounts 5%, 10%, 15% equal to?", "options": {"A": "27.325%", "B": "28.325%", "C": "29.325%", "D": "30.325%"}, "correct_answer": "A"},
    {"id": 70, "difficulty": "medium", "question": "After 27.5% discount, price ₹1450. Marked price?", "options": {"A": "₹1980", "B": "₹1990", "C": "₹2000", "D": "₹2010"}, "correct_answer": "C"},
    {"id": 71, "difficulty": "medium", "question": "If 18% discount = 12% profit, cost:marked price?", "options": {"A": "39:50", "B": "40:51", "C": "41:52", "D": "42:53"}, "correct_answer": "C"},
    {"id": 72, "difficulty": "medium", "question": "Marked price ₹750, discounts 15% and 12%. Final price?", "options": {"A": "₹550.8", "B": "₹560.8", "C": "₹570.8", "D": "₹580.8"}, "correct_answer": "B"},
    {"id": 73, "difficulty": "medium", "question": "If discount increases by 10%, price decreases ₹110. Original discount?", "options": {"A": "₹90", "B": "₹95", "C": "₹100", "D": "₹105"}, "correct_answer": "C"},
    {"id": 74, "difficulty": "medium", "question": "Successive discounts 12% and 18% equal to?", "options": {"A": "27.84%", "B": "28.84%", "C": "29.84%", "D": "30.84%"}, "correct_answer": "A"},
    {"id": 75, "difficulty": "medium", "question": "After discount of 3/11, price ₹1600. Original?", "options": {"A": "₹2195", "B": "₹2198", "C": "₹2200", "D": "₹2202"}, "correct_answer": "C"},
    {"id": 76, "difficulty": "medium", "question": "If 22% discount gives 10% loss, what discount for 5% profit?", "options": {"A": "11.82%", "B": "12.82%", "C": "13.82%", "D": "14.82%"}, "correct_answer": "A"},
    {"id": 77, "difficulty": "medium", "question": "Marked price ₹1200, three discounts of 5% each. Final price?", "options": {"A": "₹1025.85", "B": "₹1026.85", "C": "₹1027.85", "D": "₹1028.85"}, "correct_answer": "B"},
    {"id": 78, "difficulty": "medium", "question": "If discount 37% of marked price, remaining %?", "options": {"A": "61%", "B": "62%", "C": "63%", "D": "64%"}, "correct_answer": "C"},
    {"id": 79, "difficulty": "medium", "question": "Successive discounts 6%, 8%, 10% equal to?", "options": {"A": "22.072%", "B": "23.072%", "C": "24.072%", "D": "25.072%"}, "correct_answer": "A"},
    {"id": 80, "difficulty": "medium", "question": "After 14.28% discount, price ₹3000. Marked price?", "options": {"A": "₹3498", "B": "₹3499", "C": "₹3500", "D": "₹3501"}, "correct_answer": "C"},
    {"id": 81, "difficulty": "hard", "question": "A shopkeeper marks goods 50% above cost. After discount, gains 20%. Discount %?", "options": {"A": "18%", "B": "19%", "C": "20%", "D": "21%"}, "correct_answer": "C"},
    {"id": 82, "difficulty": "hard", "question": "Successive discounts 20%, 25%, 30% equal single discount of?", "options": {"A": "57%", "B": "58%", "C": "59%", "D": "60%"}, "correct_answer": "B"},
    {"id": 83, "difficulty": "hard", "question": "If 10% and 20% discounts equal to single discount D%, find D?", "options": {"A": "27%", "B": "28%", "C": "29%", "D": "30%"}, "correct_answer": "B"},
    {"id": 84, "difficulty": "hard", "question": "Marked price ₹x, sold at ₹0.9x after discount. If discount was 5% more, sold at ₹0.85x. Find x?", "options": {"A": "₹1000", "B": "₹1200", "C": "₹1500", "D": "₹2000"}, "correct_answer": "D"},
    {"id": 85, "difficulty": "hard", "question": "Discount series: 10%, 15%, 20% on ₹2000 equals?", "options": {"A": "₹1204", "B": "₹1214", "C": "₹1224", "D": "₹1234"}, "correct_answer": "C"},
    {"id": 86, "difficulty": "hard", "question": "If cost:marked price = 4:5 and discount 12%, profit %?", "options": {"A": "8%", "B": "9%", "C": "10%", "D": "11%"}, "correct_answer": "C"},
    {"id": 87, "difficulty": "hard", "question": "After 16⅔% discount, gain 25%. If cost ₹400, marked price?", "options": {"A": "₹590", "B": "₹595", "C": "₹600", "D": "₹605"}, "correct_answer": "C"},
    {"id": 88, "difficulty": "hard", "question": "Two discounts: first x%, then 2x% equal 46% total. Find x?", "options": {"A": "18%", "B": "19%", "C": "20%", "D": "21%"}, "correct_answer": "C"},
    {"id": 89, "difficulty": "hard", "question": "If 30% discount = 10% loss, what discount for 20% gain?", "options": {"A": "10%", "B": "11%", "C": "12%", "D": "13%"}, "correct_answer": "A"},
    {"id": 90, "difficulty": "hard", "question": "Successive discounts a%, b%, c% equal 42.4%. If a=20, b=15, find c?", "options": {"A": "8%", "B": "9%", "C": "10%", "D": "11%"}, "correct_answer": "D"},
    {"id": 91, "difficulty": "hard", "question": "Marked price 80% above cost. After discount, sold at 30% profit. Discount %?", "options": {"A": "25.56%", "B": "26.56%", "C": "27.56%", "D": "28.56%"}, "correct_answer": "C"},
    {"id": 92, "difficulty": "hard", "question": "If discount 1/4 then 1/5 of remaining equals total discount?", "options": {"A": "35%", "B": "36%", "C": "37%", "D": "38%"}, "correct_answer": "B"},
    {"id": 93, "difficulty": "hard", "question": "After discounts 12.5% and 10%, price ₹1575. Marked price?", "options": {"A": "₹1998", "B": "₹1999", "C": "₹2000", "D": "₹2001"}, "correct_answer": "C"},
    {"id": 94, "difficulty": "hard", "question": "If 15% discount = 8% profit, what discount for 20% profit?", "options": {"A": "2.17%", "B": "3.17%", "C": "4.17%", "D": "5.17%"}, "correct_answer": "A"},
    {"id": 95, "difficulty": "hard", "question": "Three successive equal discounts equal 48.8% single. Each discount?", "options": {"A": "19%", "B": "20%", "C": "21%", "D": "22%"}, "correct_answer": "B"},
    {"id": 96, "difficulty": "hard", "question": "Marked price ₹x, after 2 discounts of 10% each = ₹810. x=?", "options": {"A": "₹990", "B": "₹995", "C": "₹1000", "D": "₹1005"}, "correct_answer": "C"},
    {"id": 97, "difficulty": "hard", "question": "If cost:marked = 5:7 and discount 20%, profit %?", "options": {"A": "10%", "B": "11%", "C": "12%", "D": "13%"}, "correct_answer": "C"},
    {"id": 98, "difficulty": "hard", "question": "After 33⅓% discount, gain 11.11%. If cost ₹450, marked price?", "options": {"A": "₹749", "B": "₹750", "C": "₹751", "D": "₹752"}, "correct_answer": "B"},
    {"id": 99, "difficulty": "hard", "question": "Discounts: 25% then ₹100 off equals 40% total. Marked price?", "options": {"A": "₹1999", "B": "₹2000", "C": "₹2001", "D": "₹2002"}, "correct_answer": "B"},
    {"id": 100, "difficulty": "hard", "question": "If 12% discount = 5% loss, what discount for 10% profit?", "options": {"A": "5.6%", "B": "6.6%", "C": "7.6%", "D": "8.6%"}, "correct_answer": "B"}
  ]
}