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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 107 · 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.What is 20% of 960?
  2. 2.The price of a box of mangoes changed from ₹200 to ₹380. What is the percentage increase?
  3. 3.What is 55% of 960?
  4. 4.The price of a school bag changed from ₹25 to ₹40. What is the percentage increase?
  5. 5.A shopkeeper buys a fan for ₹1100 and sells it for ₹1070. What is the loss (in ₹)?
  6. 6.A shopkeeper buys a cooler for ₹1400 and sells it for ₹1190. What is the loss (in ₹)?
  7. 7.The price of a school bag changed from ₹50 to ₹80. What is the percentage increase?
  8. 8.What is 45% of 600?
  9. 9.What is 30% of 260?
  10. 10.A watch bought for ₹1800 is sold for ₹1980. What is the profit per cent?
  11. 11.What is the simple interest on ₹4600 at 3% per year for 2 years (in ₹)?
  12. 12.What is 45% of 200?
  13. 13.A cycle costs ₹3600. It is sold at a 20% loss. What is the selling price (in ₹)?
  14. 14.What is 20% of 980?
  15. 15.What is 55% of 700?
  16. 16.A cricket kit bought for ₹2600 is sold for ₹1950. What is the loss per cent?
  17. 17.What is the simple interest on ₹2600 at 4% per year for 3 years (in ₹)?
  18. 18.What is the simple interest on ₹8100 at 8% per year for 2 years (in ₹)?
  19. 19.What is the simple interest on ₹500 at 9% per year for 5 years (in ₹)?
  20. 20.What is the simple interest on ₹1200 at 11% per year for 1 year (in ₹)?
  21. 21.What is the simple interest on ₹6000 at 11% per year for 2 years (in ₹)?
  22. 22.A shopkeeper buys a watch for ₹750 and sells it for ₹830. What is the profit (in ₹)?
  23. 23.A shopkeeper buys a table for ₹2450 and sells it for ₹2250. What is the loss (in ₹)?
  24. 24.What is the amount (principal + simple interest) on ₹3200 at 12% per year for 1 year (in ₹)?
  25. 25.The price of a box of mangoes changed from ₹200 to ₹120. What is the percentage decrease?
  26. 26.What is the simple interest on ₹6500 at 5% per year for 3 years (in ₹)?
  27. 27.What is the amount (principal + simple interest) on ₹700 at 2% per year for 2 years (in ₹)?
  28. 28.The price of a box of mangoes changed from ₹200 to ₹198. What is the percentage decrease?
  29. 29.A cooler costs ₹2200. It is sold at a 12% loss. What is the selling price (in ₹)?
  30. 30.A mobile phone bought for ₹3600 is sold for ₹3780. What is the profit per cent?
  31. 31.A shopkeeper buys a mobile phone for ₹2900 and sells it for ₹2710. What is the loss (in ₹)?
  32. 32.What is 10% of 320?
  33. 33.What is 10% of 1000?
  34. 34.A watch costs ₹400. It is sold at a 20% loss. What is the selling price (in ₹)?
  35. 35.A shopkeeper buys a mobile phone for ₹200 and sells it for ₹360. What is the profit (in ₹)?
  36. 36.A mobile phone bought for ₹1200 is sold for ₹1800. What is the profit per cent?
  37. 37.What is 85% of 140?
  38. 38.A shopkeeper buys a cycle for ₹2750 and sells it for ₹2490. What is the loss (in ₹)?
  39. 39.A cycle bought for ₹3100 is sold for ₹2325. What is the loss per cent?
  40. 40.A cooler costs ₹3700. It is sold at a 25% loss. What is the selling price (in ₹)?

Answer key

  1. 192
  2. 90
  3. 528
  4. 60
  5. 30
  6. 210
  7. 60
  8. 270
  9. 78
  10. 10
  11. 276
  12. 90
  13. 2880
  14. 196
  15. 385
  16. 25
  17. 312
  18. 1296
  19. 225
  20. 132
  21. 1320
  22. 80
  23. 200
  24. 3584
  25. 40
  26. 975
  27. 728
  28. 1
  29. 1936
  30. 5
  31. 190
  32. 32
  33. 100
  34. 320
  35. 160
  36. 50
  37. 119
  38. 260
  39. 25
  40. 2775

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