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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 793 · 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 fan bought for ₹1100 is sold for ₹1232. What is the profit per cent?
  2. 2.A cooler costs ₹2400. It is sold at a 5% loss. What is the selling price (in ₹)?
  3. 3.The price of a cricket ball changed from ₹20 to ₹38. What is the percentage increase?
  4. 4.A cooler bought for ₹4000 is sold for ₹6000. What is the profit per cent?
  5. 5.The price of a bus pass changed from ₹250 to ₹100. What is the percentage decrease?
  6. 6.A shopkeeper buys a watch for ₹600 and sells it for ₹390. What is the loss (in ₹)?
  7. 7.A cycle bought for ₹3500 is sold for ₹3920. What is the profit per cent?
  8. 8.A mobile phone costs ₹700. It is sold at a 25% profit. What is the selling price (in ₹)?
  9. 9.A watch bought for ₹2400 is sold for ₹1920. What is the loss per cent?
  10. 10.A shopkeeper buys a fan for ₹1500 and sells it for ₹1220. What is the loss (in ₹)?
  11. 11.The price of a school bag changed from ₹100 to ₹105. What is the percentage increase?
  12. 12.A cycle bought for ₹2900 is sold for ₹2030. What is the loss per cent?
  13. 13.The price of a box of mangoes changed from ₹200 to ₹300. What is the percentage increase?
  14. 14.What is the simple interest on ₹800 at 9% per year for 3 years (in ₹)?
  15. 15.A shopkeeper buys a mobile phone for ₹1200 and sells it for ₹1400. What is the profit (in ₹)?
  16. 16.The price of a box of mangoes changed from ₹100 to ₹101. What is the percentage increase?
  17. 17.What is the simple interest on ₹7800 at 3% per year for 3 years (in ₹)?
  18. 18.What is the amount (principal + simple interest) on ₹6600 at 2% per year for 1 year (in ₹)?
  19. 19.What is the amount (principal + simple interest) on ₹7100 at 2% per year for 4 years (in ₹)?
  20. 20.What is the amount (principal + simple interest) on ₹3000 at 4% per year for 1 year (in ₹)?
  21. 21.The price of a school bag changed from ₹50 to ₹45. What is the percentage decrease?
  22. 22.What is the simple interest on ₹6300 at 6% per year for 5 years (in ₹)?
  23. 23.What is 45% of 480?
  24. 24.The price of a school bag changed from ₹400 to ₹760. What is the percentage increase?
  25. 25.The price of a bus pass changed from ₹20 to ₹16. What is the percentage decrease?
  26. 26.What is the amount (principal + simple interest) on ₹8400 at 4% per year for 3 years (in ₹)?
  27. 27.A shopkeeper buys a mobile phone for ₹2850 and sells it for ₹3040. What is the profit (in ₹)?
  28. 28.What is 95% of 700?
  29. 29.What is the simple interest on ₹8500 at 2% per year for 4 years (in ₹)?
  30. 30.What is 25% of 420?
  31. 31.A mobile phone costs ₹300. It is sold at a 20% profit. What is the selling price (in ₹)?
  32. 32.The price of a pair of shoes changed from ₹80 to ₹140. What is the percentage increase?
  33. 33.The price of a box of mangoes changed from ₹400 to ₹700. What is the percentage increase?
  34. 34.A watch bought for ₹1100 is sold for ₹990. What is the loss per cent?
  35. 35.What is 35% of 820?
  36. 36.What is the simple interest on ₹9400 at 2% per year for 4 years (in ₹)?
  37. 37.What is the simple interest on ₹1700 at 2% per year for 1 year (in ₹)?
  38. 38.The price of a school bag changed from ₹100 to ₹70. What is the percentage decrease?
  39. 39.The price of a cricket ball changed from ₹500 to ₹625. What is the percentage increase?
  40. 40.A sewing machine costs ₹3300. It is sold at a 30% loss. What is the selling price (in ₹)?

Answer key

  1. 12
  2. 2280
  3. 90
  4. 50
  5. 60
  6. 210
  7. 12
  8. 875
  9. 20
  10. 280
  11. 5
  12. 30
  13. 50
  14. 216
  15. 200
  16. 1
  17. 702
  18. 6732
  19. 7668
  20. 3120
  21. 10
  22. 1890
  23. 216
  24. 90
  25. 20
  26. 9408
  27. 190
  28. 665
  29. 680
  30. 105
  31. 360
  32. 75
  33. 75
  34. 10
  35. 287
  36. 752
  37. 34
  38. 30
  39. 25
  40. 2310

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