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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 128 · 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.

NameDateTime takenScore ___ / 40
  1. 1.A shopkeeper buys a sewing machine for ₹800 and sells it for ₹880. What is the profit (in ₹)?
  2. 2.What is the simple interest on ₹900 at 3% per year for 1 year (in ₹)?
  3. 3.The price of a box of mangoes changed from ₹50 to ₹49. What is the percentage decrease?
  4. 4.The price of a pair of shoes changed from ₹20 to ₹5. What is the percentage decrease?
  5. 5.A watch bought for ₹2500 is sold for ₹3000. What is the profit per cent?
  6. 6.A table costs ₹2600. It is sold at a 50% loss. What is the selling price (in ₹)?
  7. 7.A shopkeeper buys a mobile phone for ₹2750 and sells it for ₹2760. What is the profit (in ₹)?
  8. 8.What is the amount (principal + simple interest) on ₹8300 at 10% per year for 3 years (in ₹)?
  9. 9.A mobile phone costs ₹3700. It is sold at a 30% profit. What is the selling price (in ₹)?
  10. 10.A cycle costs ₹2400. It is sold at a 5% loss. What is the selling price (in ₹)?
  11. 11.A cricket kit bought for ₹300 is sold for ₹225. What is the loss per cent?
  12. 12.The price of a bus pass changed from ₹20 to ₹15. What is the percentage decrease?
  13. 13.What is the simple interest on ₹9200 at 5% per year for 4 years (in ₹)?
  14. 14.What is 10% of 360?
  15. 15.A cycle bought for ₹1900 is sold for ₹1140. What is the loss per cent?
  16. 16.The price of a bus pass changed from ₹50 to ₹30. What is the percentage decrease?
  17. 17.A cricket kit costs ₹3200. It is sold at a 20% profit. What is the selling price (in ₹)?
  18. 18.A sewing machine bought for ₹2300 is sold for ₹2070. What is the loss per cent?
  19. 19.What is the simple interest on ₹9800 at 12% per year for 2 years (in ₹)?
  20. 20.What is the simple interest on ₹3700 at 12% per year for 3 years (in ₹)?
  21. 21.What is the simple interest on ₹5200 at 5% per year for 1 year (in ₹)?
  22. 22.The price of a school bag changed from ₹40 to ₹42. What is the percentage increase?
  23. 23.What is the simple interest on ₹2500 at 4% per year for 4 years (in ₹)?
  24. 24.A shopkeeper buys a cricket kit for ₹1000 and sells it for ₹1170. What is the profit (in ₹)?
  25. 25.A shopkeeper buys a cycle for ₹600 and sells it for ₹620. What is the profit (in ₹)?
  26. 26.The price of a cricket ball changed from ₹200 to ₹160. What is the percentage decrease?
  27. 27.A shopkeeper buys a watch for ₹2300 and sells it for ₹2400. What is the profit (in ₹)?
  28. 28.A shopkeeper buys a cycle for ₹450 and sells it for ₹220. What is the loss (in ₹)?
  29. 29.What is 15% of 520?
  30. 30.A sewing machine costs ₹2400. It is sold at a 20% profit. What is the selling price (in ₹)?
  31. 31.The price of a bus pass changed from ₹200 to ₹202. What is the percentage increase?
  32. 32.The price of a box of mangoes changed from ₹100 to ₹95. What is the percentage decrease?
  33. 33.A shopkeeper buys a cycle for ₹2100 and sells it for ₹1950. What is the loss (in ₹)?
  34. 34.The price of a cricket ball changed from ₹40 to ₹76. What is the percentage increase?
  35. 35.A mobile phone bought for ₹3000 is sold for ₹3360. What is the profit per cent?
  36. 36.A cooler costs ₹1600. It is sold at a 12% loss. What is the selling price (in ₹)?
  37. 37.What is the amount (principal + simple interest) on ₹9700 at 6% per year for 3 years (in ₹)?
  38. 38.A table bought for ₹1600 is sold for ₹2400. What is the profit per cent?
  39. 39.What is the amount (principal + simple interest) on ₹3700 at 2% per year for 2 years (in ₹)?
  40. 40.The price of a school bag changed from ₹500 to ₹505. What is the percentage increase?

Answer key

  1. 80
  2. 27
  3. 2
  4. 75
  5. 20
  6. 1300
  7. 10
  8. 10790
  9. 4810
  10. 2280
  11. 25
  12. 25
  13. 1840
  14. 36
  15. 40
  16. 40
  17. 3840
  18. 10
  19. 2352
  20. 1332
  21. 260
  22. 5
  23. 400
  24. 170
  25. 20
  26. 20
  27. 100
  28. 230
  29. 78
  30. 2880
  31. 1
  32. 5
  33. 150
  34. 90
  35. 12
  36. 1408
  37. 11446
  38. 50
  39. 3848
  40. 1

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