← Percentage increase and decrease lesson New set →

Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 506 · 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 3860 litres. 5% of the water is used. How many litres are left?
  2. 2.A price comes down by 5% and then comes down by 10% more. By what percent has it come down in all? =
  3. 3.The price of a school bag changes from ₹4260 to ₹2982. By what percent did it come down?
  4. 4.The price of a school bag changes from ₹2580 to ₹2709. By what percent did it go up?
  5. 5.The price of a bicycle is ₹4580. It goes up by 15%. What is the new price (in ₹)?
  6. 6.A water tank holds 900 litres. 15% of the water is used. How many litres are left?
  7. 7.A town has 340 people. Its population grows by 30%. How many people live there now?
  8. 8.A water tank holds 400 litres. 40% of the water is used. How many litres are left?
  9. 9.A shop sells 2120 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
  10. 10.The price of a bicycle is ₹1880. It goes up by 40%. What is the new price (in ₹)?
  11. 11.The price of a school bag changes from ₹720 to ₹1080. By what percent did it go up?
  12. 12.The price of a school bag changes from ₹3320 to ₹3984. By what percent did it go up?
  13. 13.The price of a school bag changes from ₹4040 to ₹4242. By what percent did it go up?
  14. 14.The price of a school bag changes from ₹1280 to ₹1600. By what percent did it go up?
  15. 15.The price of a bicycle is ₹3320. It goes up by 25%. What is the new price (in ₹)?
  16. 16.A price goes up by 25% and then goes up by 40% more. By what percent has it gone up in all? =
  17. 17.A water tank holds 1800 litres. 50% of the water is used. How many litres are left?
  18. 18.The price of a bicycle is ₹3460. It goes up by 40%. What is the new price (in ₹)?
  19. 19.The price of a school bag changes from ₹3420 to ₹4104. By what percent did it go up?
  20. 20.The price of a bicycle is ₹600. It goes up by 10%. What is the new price (in ₹)?
  21. 21.A water tank holds 1280 litres. 40% of the water is used. How many litres are left?
  22. 22.A price goes up by 15% and then goes up by 40% more. By what percent has it gone up in all? =
  23. 23.A town has 460 people. Its population grows by 20%. How many people live there now?
  24. 24.The price of a school bag changes from ₹1360 to ₹1496. By what percent did it go up?
  25. 25.A price comes down by 40% and then comes down by 10% more. By what percent has it come down in all? =
  26. 26.The price of a school bag changes from ₹4740 to ₹6162. By what percent did it go up?
  27. 27.A shop sells 1380 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
  28. 28.The price of a school bag changes from ₹4960 to ₹6944. By what percent did it go up?
  29. 29.A price comes down by 25% and then comes down by 30% more. By what percent has it come down in all? =
  30. 30.A price goes up by 30% and then comes down by 15%. By what percent has it gone up in all? =
  31. 31.The price of a school bag changes from ₹4040 to ₹6060. By what percent did it go up?
  32. 32.A price comes down by 25% and then comes down by 20% more. By what percent has it come down in all? =
  33. 33.A water tank holds 4400 litres. 5% of the water is used. How many litres are left?
  34. 34.A water tank holds 1420 litres. 5% of the water is used. How many litres are left?
  35. 35.A price goes up by 30% and then goes up by 25% more. By what percent has it gone up in all? =
  36. 36.The price of a school bag changes from ₹840 to ₹798. By what percent did it come down?
  37. 37.A water tank holds 4180 litres. 10% of the water is used. How many litres are left?
  38. 38.A shop sells 4460 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
  39. 39.The price of a school bag changes from ₹3420 to ₹3078. By what percent did it come down?
  40. 40.The price of a school bag changes from ₹1080 to ₹1512. By what percent did it go up?

Answer key

  1. 3667
  2. 14.5
  3. 30
  4. 5
  5. 5267
  6. 765
  7. 442
  8. 240
  9. 2544
  10. 2632
  11. 50
  12. 20
  13. 5
  14. 25
  15. 4150
  16. 75
  17. 900
  18. 4844
  19. 20
  20. 660
  21. 768
  22. 61
  23. 552
  24. 10
  25. 46
  26. 30
  27. 1656
  28. 40
  29. 47.5
  30. 10.5
  31. 50
  32. 40
  33. 4180
  34. 1349
  35. 62.5
  36. 5
  37. 3762
  38. 6244
  39. 10
  40. 40

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