← Percentage increase and decrease lesson New set →

Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 963 · 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.A water tank holds 1680 litres. 25% of the water is used. How many litres are left?
  2. 2.A price goes up by 50% and then goes up by 30% more. By what percent has it gone up in all? =
  3. 3.A price goes up by 15% and then goes up by 15% more. By what percent has it gone up in all? =
  4. 4.The price of a bicycle is ₹3880. It goes up by 5%. What is the new price (in ₹)?
  5. 5.A water tank holds 1920 litres. 30% of the water is used. How many litres are left?
  6. 6.The price of a bicycle is ₹4640. It goes up by 40%. What is the new price (in ₹)?
  7. 7.A water tank holds 360 litres. 25% of the water is used. How many litres are left?
  8. 8.The price of a school bag changes from ₹4900 to ₹3675. By what percent did it come down?
  9. 9.The price of a school bag changes from ₹700 to ₹875. By what percent did it go up?
  10. 10.The price of a school bag changes from ₹1320 to ₹1188. By what percent did it come down?
  11. 11.A town has 580 people. Its population grows by 50%. How many people live there now?
  12. 12.The price of a school bag changes from ₹4380 to ₹4161. By what percent did it come down?
  13. 13.A shop sells 1280 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
  14. 14.A town has 1360 people. Its population grows by 50%. How many people live there now?
  15. 15.The price of a school bag changes from ₹280 to ₹224. By what percent did it come down?
  16. 16.The price of a school bag changes from ₹3120 to ₹3276. By what percent did it go up?
  17. 17.A water tank holds 3520 litres. 25% of the water is used. How many litres are left?
  18. 18.The price of a school bag changes from ₹1380 to ₹1104. By what percent did it come down?
  19. 19.A shop sells 1200 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
  20. 20.The price of a school bag changes from ₹960 to ₹720. By what percent did it come down?
  21. 21.The price of a school bag changes from ₹3620 to ₹2715. By what percent did it come down?
  22. 22.The price of a bicycle is ₹4320. It goes up by 15%. What is the new price (in ₹)?
  23. 23.A town has 100 people. Its population grows by 5%. How many people live there now?
  24. 24.The price of a school bag changes from ₹4240 to ₹4876. By what percent did it go up?
  25. 25.The price of a bicycle is ₹1300. It goes up by 5%. What is the new price (in ₹)?
  26. 26.A price goes up by 5% and then goes up by 30% more. By what percent has it gone up in all? =
  27. 27.A town has 580 people. Its population grows by 40%. How many people live there now?
  28. 28.The price of a bicycle is ₹3520. It goes up by 25%. What is the new price (in ₹)?
  29. 29.A water tank holds 2300 litres. 50% of the water is used. How many litres are left?
  30. 30.The price of a school bag changes from ₹1100 to ₹1540. By what percent did it go up?
  31. 31.A water tank holds 140 litres. 10% of the water is used. How many litres are left?
  32. 32.A water tank holds 3920 litres. 25% of the water is used. How many litres are left?
  33. 33.A water tank holds 60 litres. 5% of the water is used. How many litres are left?
  34. 34.A price goes up by 20% and then goes up by 15% more. By what percent has it gone up in all? =
  35. 35.The price of a school bag changes from ₹1080 to ₹1620. By what percent did it go up?
  36. 36.A water tank holds 1420 litres. 10% of the water is used. How many litres are left?
  37. 37.A price goes up by 15% and then goes up by 20% more. By what percent has it gone up in all? =
  38. 38.A shop sells 3360 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
  39. 39.A price comes down by 30% and then comes down by 40% more. By what percent has it come down in all? =
  40. 40.The price of a school bag changes from ₹4420 to ₹3978. By what percent did it come down?

Answer key

  1. 1260
  2. 95
  3. 32.25
  4. 4074
  5. 1344
  6. 6496
  7. 270
  8. 25
  9. 25
  10. 10
  11. 870
  12. 5
  13. 1664
  14. 2040
  15. 20
  16. 5
  17. 2640
  18. 20
  19. 1380
  20. 25
  21. 25
  22. 4968
  23. 105
  24. 15
  25. 1365
  26. 36.5
  27. 812
  28. 4400
  29. 1150
  30. 40
  31. 126
  32. 2940
  33. 57
  34. 38
  35. 50
  36. 1278
  37. 38
  38. 3528
  39. 58
  40. 10

Free quantitative aptitude lessons, practice and worksheets at talentjr.in/quantitative-aptitude