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Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 192 · 40 questions
TalentJR

The method (Start value is 100%): New value after a rise of p%: value + p% of value. After a fall: value − p% of value. Percent change = change ÷ starting value × 100. Two changes a% and b% one after the other: a + b + (a × b) ÷ 100, with a fall counted as minus.

NameDateTime takenScore ___ / 40
  1. 1.The price of a bicycle is ₹500. It goes up by 40%. What is the new price (in ₹)?
  2. 2.A water tank holds 4780 litres. 10% of the water is used. How many litres are left?
  3. 3.A price comes down by 5% and then comes down by 25% more. By what percent has it come down in all? =
  4. 4.A town has 160 people. Its population grows by 40%. How many people live there now?
  5. 5.A water tank holds 3760 litres. 5% of the water is used. How many litres are left?
  6. 6.The price of a school bag changes from ₹2140 to ₹1926. By what percent did it come down?
  7. 7.A water tank holds 4780 litres. 40% of the water is used. How many litres are left?
  8. 8.The price of a bicycle is ₹1360. It goes up by 50%. What is the new price (in ₹)?
  9. 9.A town has 380 people. Its population grows by 10%. How many people live there now?
  10. 10.A price goes up by 40% and then goes up by 40% more. By what percent has it gone up in all? =
  11. 11.A water tank holds 3720 litres. 50% of the water is used. How many litres are left?
  12. 12.The price of a school bag changes from ₹1900 to ₹2280. By what percent did it go up?
  13. 13.The price of a school bag changes from ₹4640 to ₹5800. By what percent did it go up?
  14. 14.A price goes up by 15% and then goes up by 40% more. By what percent has it gone up in all? =
  15. 15.A town has 2880 people. Its population grows by 50%. How many people live there now?
  16. 16.A shop sells 820 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
  17. 17.A water tank holds 3400 litres. 25% of the water is used. How many litres are left?
  18. 18.A town has 1480 people. Its population grows by 30%. How many people live there now?
  19. 19.The price of a school bag changes from ₹180 to ₹252. By what percent did it go up?
  20. 20.The price of a school bag changes from ₹2920 to ₹2190. By what percent did it come down?
  21. 21.A shop sells 980 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
  22. 22.A water tank holds 2760 litres. 15% of the water is used. How many litres are left?
  23. 23.The price of a school bag changes from ₹500 to ₹650. By what percent did it go up?
  24. 24.A price goes up by 20% and then goes up by 30% more. By what percent has it gone up in all? =
  25. 25.A price goes up by 40% and then goes up by 5% more. By what percent has it gone up in all? =
  26. 26.The price of a school bag changes from ₹1500 to ₹1425. By what percent did it come down?
  27. 27.A water tank holds 3220 litres. 25% of the water is used. How many litres are left?
  28. 28.A shop sells 700 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
  29. 29.The price of a school bag changes from ₹1320 to ₹1518. By what percent did it go up?
  30. 30.A shop sells 4540 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
  31. 31.A water tank holds 240 litres. 30% of the water is used. How many litres are left?
  32. 32.The price of a bicycle is ₹980. It goes up by 20%. What is the new price (in ₹)?
  33. 33.The price of a bicycle is ₹720. It goes up by 15%. What is the new price (in ₹)?
  34. 34.A price comes down by 30% and then comes down by 15% more. By what percent has it come down in all? =
  35. 35.The price of a school bag changes from ₹2340 to ₹1989. By what percent did it come down?
  36. 36.A price comes down by 40% and then comes down by 25% more. By what percent has it come down in all? =
  37. 37.A price comes down by 10% and then comes down by 20% more. By what percent has it come down in all? =
  38. 38.A price goes up by 40% and then comes down by 15%. By what percent has it gone up in all? =
  39. 39.The price of a school bag changes from ₹1380 to ₹1242. By what percent did it come down?
  40. 40.A water tank holds 4880 litres. 20% of the water is used. How many litres are left?

Answer key

  1. 700
  2. 4302
  3. 28.75
  4. 224
  5. 3572
  6. 10
  7. 2868
  8. 2040
  9. 418
  10. 96
  11. 1860
  12. 20
  13. 25
  14. 61
  15. 4320
  16. 1148
  17. 2550
  18. 1924
  19. 40
  20. 25
  21. 1078
  22. 2346
  23. 30
  24. 56
  25. 47
  26. 5
  27. 2415
  28. 1050
  29. 15
  30. 5221
  31. 168
  32. 1176
  33. 828
  34. 40.5
  35. 15
  36. 55
  37. 28
  38. 19
  39. 10
  40. 3904

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