← Percentage increase and decrease lesson New set →

Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 741 · 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 ₹1760 to ₹1408. By what percent did it come down?
  2. 2.A price comes down by 50% and then comes down by 10% more. By what percent has it come down in all? =
  3. 3.A water tank holds 1740 litres. 30% of the water is used. How many litres are left?
  4. 4.A price goes up by 30% and then goes up by 30% more. By what percent has it gone up in all? =
  5. 5.A shop sells 1200 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
  6. 6.A price goes up by 10% and then comes down by 5%. By what percent has it gone up in all? =
  7. 7.A price comes down by 25% and then comes down by 10% more. By what percent has it come down in all? =
  8. 8.A price comes down by 10% and then comes down by 40% more. By what percent has it come down in all? =
  9. 9.A shop sells 4740 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
  10. 10.The price of a school bag changes from ₹1380 to ₹1932. By what percent did it go up?
  11. 11.The price of a bicycle is ₹200. It goes up by 5%. What is the new price (in ₹)?
  12. 12.A town has 1200 people. Its population grows by 30%. How many people live there now?
  13. 13.A water tank holds 4600 litres. 25% of the water is used. How many litres are left?
  14. 14.A water tank holds 4620 litres. 15% of the water is used. How many litres are left?
  15. 15.The price of a school bag changes from ₹3600 to ₹5400. By what percent did it go up?
  16. 16.The price of a bicycle is ₹4580. It goes up by 25%. What is the new price (in ₹)?
  17. 17.A shop sells 4720 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
  18. 18.The price of a school bag changes from ₹2820 to ₹3384. By what percent did it go up?
  19. 19.A water tank holds 4700 litres. 30% of the water is used. How many litres are left?
  20. 20.The price of a school bag changes from ₹3980 to ₹4179. By what percent did it go up?
  21. 21.A price goes up by 20% and then goes up by 15% more. By what percent has it gone up in all? =
  22. 22.A shop sells 4440 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
  23. 23.A shop sells 1340 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
  24. 24.The price of a school bag changes from ₹4040 to ₹4444. By what percent did it go up?
  25. 25.The price of a bicycle is ₹2260. It goes up by 5%. What is the new price (in ₹)?
  26. 26.A water tank holds 4180 litres. 5% of the water is used. How many litres are left?
  27. 27.A shop sells 1140 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 15% and then goes up by 50% more. By what percent has it gone up in all? =
  29. 29.The price of a school bag changes from ₹2720 to ₹3128. By what percent did it go up?
  30. 30.A water tank holds 2720 litres. 50% of the water is used. How many litres are left?
  31. 31.A water tank holds 700 litres. 10% of the water is used. How many litres are left?
  32. 32.The price of a school bag changes from ₹1360 to ₹1088. By what percent did it come down?
  33. 33.A price comes down by 30% and then comes down by 20% more. By what percent has it come down in all? =
  34. 34.The price of a school bag changes from ₹4820 to ₹4097. By what percent did it come down?
  35. 35.The price of a bicycle is ₹1140. It goes up by 50%. What is the new price (in ₹)?
  36. 36.A water tank holds 1060 litres. 5% of the water is used. How many litres are left?
  37. 37.The price of a school bag changes from ₹560 to ₹336. By what percent did it come down?
  38. 38.A price comes down by 50% and then comes down by 15% more. By what percent has it come down in all? =
  39. 39.The price of a school bag changes from ₹3140 to ₹4396. By what percent did it go up?
  40. 40.A water tank holds 2220 litres. 5% of the water is used. How many litres are left?

Answer key

  1. 20
  2. 55
  3. 1218
  4. 69
  5. 1320
  6. 4.5
  7. 32.5
  8. 46
  9. 7110
  10. 40
  11. 210
  12. 1560
  13. 3450
  14. 3927
  15. 50
  16. 5725
  17. 5664
  18. 20
  19. 3290
  20. 5
  21. 38
  22. 4662
  23. 1407
  24. 10
  25. 2373
  26. 3971
  27. 1425
  28. 72.5
  29. 15
  30. 1360
  31. 630
  32. 20
  33. 44
  34. 15
  35. 1710
  36. 1007
  37. 40
  38. 57.5
  39. 40
  40. 2109

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