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Class 7 Maths Worksheet: Profit and Loss, Simple Interest

Maths worksheets lesson 54: Comparing quantities: percentage, profit and loss, simple interest · Set 77 · 40 sums
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The method (Out of 100): p% of a number = number × p ÷ 100. Profit = SP − CP; loss = CP − SP. Profit % (or loss %) = profit (or loss) ÷ CP × 100. Selling price at p% profit = CP + p% of CP; at p% loss = CP − p% of CP. Simple interest = P × R × T ÷ 100; amount = P + SI. % increase or decrease = change ÷ old value × 100.

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  1. 1.A shopkeeper buys a watch for ₹400 and sells it for ₹210. What is the loss (in ₹)?
  2. 2.A watch bought for ₹600 is sold for ₹300. What is the loss per cent?
  3. 3.A table costs ₹1200. It is sold at a 5% loss. What is the selling price (in ₹)?
  4. 4.The price of a school bag changed from ₹500 to ₹950. What is the percentage increase?
  5. 5.The price of a cricket ball changed from ₹20 to ₹4. What is the percentage decrease?
  6. 6.A shopkeeper buys a cycle for ₹1100 and sells it for ₹1390. What is the profit (in ₹)?
  7. 7.A fan costs ₹200. It is sold at a 30% loss. What is the selling price (in ₹)?
  8. 8.The price of a cricket ball changed from ₹20 to ₹15. What is the percentage decrease?
  9. 9.A watch bought for ₹1000 is sold for ₹800. What is the loss per cent?
  10. 10.What is the simple interest on ₹1100 at 10% per year for 2 years (in ₹)?
  11. 11.The price of a cricket ball changed from ₹100 to ₹150. What is the percentage increase?
  12. 12.What is the amount (principal + simple interest) on ₹8600 at 3% per year for 2 years (in ₹)?
  13. 13.A sewing machine costs ₹3700. It is sold at a 40% loss. What is the selling price (in ₹)?
  14. 14.The price of a cricket ball changed from ₹200 to ₹190. What is the percentage decrease?
  15. 15.A cycle bought for ₹1900 is sold for ₹2280. What is the profit per cent?
  16. 16.A shopkeeper buys a cycle for ₹2350 and sells it for ₹2610. What is the profit (in ₹)?
  17. 17.A cycle bought for ₹1100 is sold for ₹935. What is the loss per cent?
  18. 18.The price of a box of mangoes changed from ₹25 to ₹5. What is the percentage decrease?
  19. 19.A shopkeeper buys a sewing machine for ₹550 and sells it for ₹630. What is the profit (in ₹)?
  20. 20.A shopkeeper buys a sewing machine for ₹2500 and sells it for ₹2470. What is the loss (in ₹)?
  21. 21.What is the simple interest on ₹6600 at 8% per year for 1 year (in ₹)?
  22. 22.What is the amount (principal + simple interest) on ₹7400 at 5% per year for 4 years (in ₹)?
  23. 23.A cricket kit bought for ₹300 is sold for ₹270. What is the loss per cent?
  24. 24.A shopkeeper buys a cooler for ₹300 and sells it for ₹410. What is the profit (in ₹)?
  25. 25.What is the amount (principal + simple interest) on ₹1000 at 2% per year for 3 years (in ₹)?
  26. 26.What is the amount (principal + simple interest) on ₹9600 at 3% per year for 4 years (in ₹)?
  27. 27.What is 90% of 320?
  28. 28.A mobile phone costs ₹3700. It is sold at a 30% loss. What is the selling price (in ₹)?
  29. 29.A cooler costs ₹2000. It is sold at a 40% loss. What is the selling price (in ₹)?
  30. 30.The price of a water bottle changed from ₹400 to ₹720. What is the percentage increase?
  31. 31.A fan costs ₹1900. It is sold at a 20% loss. What is the selling price (in ₹)?
  32. 32.What is the amount (principal + simple interest) on ₹5100 at 11% per year for 4 years (in ₹)?
  33. 33.What is the simple interest on ₹5200 at 6% per year for 4 years (in ₹)?
  34. 34.A shopkeeper buys a fan for ₹2550 and sells it for ₹2500. What is the loss (in ₹)?
  35. 35.What is the amount (principal + simple interest) on ₹10000 at 2% per year for 5 years (in ₹)?
  36. 36.What is the simple interest on ₹6000 at 12% per year for 4 years (in ₹)?
  37. 37.A shopkeeper buys a cycle for ₹600 and sells it for ₹630. What is the profit (in ₹)?
  38. 38.A shopkeeper buys a table for ₹550 and sells it for ₹350. What is the loss (in ₹)?
  39. 39.What is the simple interest on ₹5500 at 7% per year for 1 year (in ₹)?
  40. 40.A shopkeeper buys a mobile phone for ₹1200 and sells it for ₹1170. What is the loss (in ₹)?

Answer key

  1. 190
  2. 50
  3. 1140
  4. 90
  5. 80
  6. 290
  7. 140
  8. 25
  9. 20
  10. 220
  11. 50
  12. 9116
  13. 2220
  14. 5
  15. 20
  16. 260
  17. 15
  18. 80
  19. 80
  20. 30
  21. 528
  22. 8880
  23. 10
  24. 110
  25. 1060
  26. 10752
  27. 288
  28. 2590
  29. 1200
  30. 80
  31. 1520
  32. 7344
  33. 1248
  34. 50
  35. 11000
  36. 2880
  37. 30
  38. 200
  39. 385
  40. 30

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