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Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 862 · 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 ₹140. It goes up by 10%. What is the new price (in ₹)?
  2. 2.A water tank holds 4600 litres. 40% of the water is used. How many litres are left?
  3. 3.The price of a bicycle is ₹3600. It goes up by 20%. What is the new price (in ₹)?
  4. 4.The price of a school bag changes from ₹1640 to ₹2296. By what percent did it go up?
  5. 5.A price goes up by 25% and then goes up by 5% more. By what percent has it gone up in all? =
  6. 6.A town has 4560 people. Its population grows by 50%. How many people live there now?
  7. 7.The price of a school bag changes from ₹4860 to ₹5832. By what percent did it go up?
  8. 8.The price of a bicycle is ₹3460. It goes up by 10%. What is the new price (in ₹)?
  9. 9.A water tank holds 880 litres. 50% of the water is used. How many litres are left?
  10. 10.The price of a school bag changes from ₹1780 to ₹1958. By what percent did it go up?
  11. 11.A shop sells 2800 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
  12. 12.A town has 1240 people. Its population grows by 5%. How many people live there now?
  13. 13.A shop sells 2620 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
  14. 14.A shop sells 4580 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
  15. 15.A water tank holds 580 litres. 50% of the water is used. How many litres are left?
  16. 16.The price of a school bag changes from ₹940 to ₹1081. By what percent did it go up?
  17. 17.A water tank holds 4960 litres. 25% of the water is used. How many litres are left?
  18. 18.The price of a school bag changes from ₹3980 to ₹3781. By what percent did it come down?
  19. 19.A water tank holds 4880 litres. 10% of the water is used. How many litres are left?
  20. 20.The price of a bicycle is ₹1800. It goes up by 10%. What is the new price (in ₹)?
  21. 21.A water tank holds 2820 litres. 25% of the water is used. How many litres are left?
  22. 22.A price goes up by 20% and then goes up by 25% more. By what percent has it gone up in all? =
  23. 23.A price goes up by 20% and then goes up by 5% more. By what percent has it gone up in all? =
  24. 24.A price goes up by 5% and then goes up by 25% more. By what percent has it gone up in all? =
  25. 25.A shop sells 3780 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
  26. 26.The price of a bicycle is ₹2660. It goes up by 30%. What is the new price (in ₹)?
  27. 27.A water tank holds 4700 litres. 50% of the water is used. How many litres are left?
  28. 28.A town has 900 people. Its population grows by 20%. How many people live there now?
  29. 29.A price goes up by 40% and then goes up by 40% more. By what percent has it gone up in all? =
  30. 30.A town has 3060 people. Its population grows by 5%. How many people live there now?
  31. 31.A price goes up by 5% and then goes up by 20% more. By what percent has it gone up in all? =
  32. 32.A shop sells 1060 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
  33. 33.A price goes up by 15% and then goes up by 15% more. By what percent has it gone up in all? =
  34. 34.The price of a school bag changes from ₹2720 to ₹3536. By what percent did it go up?
  35. 35.A water tank holds 3200 litres. 25% of the water is used. How many litres are left?
  36. 36.A price comes down by 10% and then comes down by 30% more. By what percent has it come down in all? =
  37. 37.A price comes down by 50% and then comes down by 15% more. By what percent has it come down in all? =
  38. 38.The price of a bicycle is ₹3000. It goes up by 5%. What is the new price (in ₹)?
  39. 39.The price of a school bag changes from ₹3720 to ₹2790. By what percent did it come down?
  40. 40.A water tank holds 2200 litres. 50% of the water is used. How many litres are left?

Answer key

  1. 154
  2. 2760
  3. 4320
  4. 40
  5. 31.25
  6. 6840
  7. 20
  8. 3806
  9. 440
  10. 10
  11. 3360
  12. 1302
  13. 3144
  14. 5038
  15. 290
  16. 15
  17. 3720
  18. 5
  19. 4392
  20. 1980
  21. 2115
  22. 50
  23. 26
  24. 31.25
  25. 3969
  26. 3458
  27. 2350
  28. 1080
  29. 96
  30. 3213
  31. 26
  32. 1166
  33. 32.25
  34. 30
  35. 2400
  36. 37
  37. 57.5
  38. 3150
  39. 25
  40. 1100

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