← Percentage increase and decrease lesson New set →

Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 879 · 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 school bag changes from ₹2240 to ₹2016. By what percent did it come down?
  2. 2.The price of a bicycle is ₹4480. It goes up by 40%. What is the new price (in ₹)?
  3. 3.The price of a bicycle is ₹3840. It goes up by 10%. What is the new price (in ₹)?
  4. 4.A shop sells 4880 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
  5. 5.The price of a school bag changes from ₹1280 to ₹1152. By what percent did it come down?
  6. 6.A price goes up by 15% and then goes up by 40% more. By what percent has it gone up in all? =
  7. 7.The price of a school bag changes from ₹680 to ₹748. By what percent did it go up?
  8. 8.The price of a school bag changes from ₹1200 to ₹1380. By what percent did it go up?
  9. 9.A price goes up by 5% and then goes up by 5% more. By what percent has it gone up in all? =
  10. 10.A water tank holds 1460 litres. 40% of the water is used. How many litres are left?
  11. 11.A town has 860 people. Its population grows by 20%. How many people live there now?
  12. 12.The price of a bicycle is ₹4040. It goes up by 20%. What is the new price (in ₹)?
  13. 13.The price of a school bag changes from ₹60 to ₹42. By what percent did it come down?
  14. 14.A price comes down by 5% and then comes down by 30% more. By what percent has it come down in all? =
  15. 15.The price of a school bag changes from ₹4020 to ₹3618. By what percent did it come down?
  16. 16.The price of a school bag changes from ₹3720 to ₹4092. By what percent did it go up?
  17. 17.The price of a school bag changes from ₹1560 to ₹936. By what percent did it come down?
  18. 18.A water tank holds 3700 litres. 40% of the water is used. How many litres are left?
  19. 19.A price comes down by 15% and then comes down by 10% more. By what percent has it come down in all? =
  20. 20.The price of a bicycle is ₹4500. It goes up by 10%. What is the new price (in ₹)?
  21. 21.The price of a bicycle is ₹960. It goes up by 10%. What is the new price (in ₹)?
  22. 22.A price comes down by 5% and then comes down by 15% more. By what percent has it come down in all? =
  23. 23.The price of a school bag changes from ₹480 to ₹504. By what percent did it go up?
  24. 24.A water tank holds 3400 litres. 15% of the water is used. How many litres are left?
  25. 25.A water tank holds 520 litres. 10% of the water is used. How many litres are left?
  26. 26.A shop sells 1800 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
  27. 27.A shop sells 1200 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
  28. 28.A price goes up by 10% and then goes up by 15% more. By what percent has it gone up in all? =
  29. 29.A price goes up by 20% and then comes down by 5%. By what percent has it gone up in all? =
  30. 30.The price of a school bag changes from ₹3160 to ₹2686. By what percent did it come down?
  31. 31.The price of a bicycle is ₹280. It goes up by 25%. What is the new price (in ₹)?
  32. 32.A water tank holds 4860 litres. 10% of the water is used. How many litres are left?
  33. 33.The price of a school bag changes from ₹3320 to ₹3818. By what percent did it go up?
  34. 34.A price goes up by 50% and then comes down by 5%. By what percent has it gone up in all? =
  35. 35.A price comes down by 30% and then comes down by 15% more. By what percent has it come down in all? =
  36. 36.The price of a school bag changes from ₹4660 to ₹5126. By what percent did it go up?
  37. 37.A price goes up by 40% and then goes up by 50% more. By what percent has it gone up in all? =
  38. 38.A shop sells 4100 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
  39. 39.The price of a bicycle is ₹1400. It goes up by 40%. What is the new price (in ₹)?
  40. 40.A water tank holds 3920 litres. 5% of the water is used. How many litres are left?

Answer key

  1. 10
  2. 6272
  3. 4224
  4. 6344
  5. 10
  6. 61
  7. 10
  8. 15
  9. 10.25
  10. 876
  11. 1032
  12. 4848
  13. 30
  14. 33.5
  15. 10
  16. 10
  17. 40
  18. 2220
  19. 23.5
  20. 4950
  21. 1056
  22. 19.25
  23. 5
  24. 2890
  25. 468
  26. 2070
  27. 1500
  28. 26.5
  29. 14
  30. 15
  31. 350
  32. 4374
  33. 15
  34. 42.5
  35. 40.5
  36. 10
  37. 110
  38. 6150
  39. 1960
  40. 3724

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