← Percentage increase and decrease lesson New set →

Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 53 · 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 price goes up by 30% and then goes up by 10% more. By what percent has it gone up in all? =
  2. 2.A price goes up by 5% and then goes up by 5% more. By what percent has it gone up in all? =
  3. 3.A shop sells 2300 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
  4. 4.A water tank holds 2900 litres. 50% of the water is used. How many litres are left?
  5. 5.A price goes up by 25% and then comes down by 5%. By what percent has it gone up in all? =
  6. 6.The price of a school bag changes from ₹260 to ₹221. By what percent did it come down?
  7. 7.The price of a school bag changes from ₹4280 to ₹4066. By what percent did it come down?
  8. 8.A town has 2920 people. Its population grows by 5%. How many people live there now?
  9. 9.A price comes down by 10% and then comes down by 20% more. By what percent has it come down in all? =
  10. 10.A town has 3480 people. Its population grows by 15%. How many people live there now?
  11. 11.The price of a bicycle is ₹2960. It goes up by 50%. What is the new price (in ₹)?
  12. 12.A shop sells 4620 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
  13. 13.A water tank holds 540 litres. 15% of the water is used. How many litres are left?
  14. 14.The price of a bicycle is ₹2100. It goes up by 5%. What is the new price (in ₹)?
  15. 15.A water tank holds 1060 litres. 20% of the water is used. How many litres are left?
  16. 16.A town has 2660 people. Its population grows by 20%. How many people live there now?
  17. 17.A water tank holds 2680 litres. 15% of the water is used. How many litres are left?
  18. 18.A water tank holds 80 litres. 40% of the water is used. How many litres are left?
  19. 19.The price of a school bag changes from ₹1180 to ₹1534. By what percent did it go up?
  20. 20.The price of a bicycle is ₹2820. It goes up by 10%. What is the new price (in ₹)?
  21. 21.A water tank holds 4600 litres. 30% of the water is used. How many litres are left?
  22. 22.A shop sells 480 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
  23. 23.A price goes up by 50% and then goes up by 5% more. By what percent has it gone up in all? =
  24. 24.The price of a bicycle is ₹1400. It goes up by 10%. What is the new price (in ₹)?
  25. 25.A water tank holds 1340 litres. 15% of the water is used. How many litres are left?
  26. 26.The price of a school bag changes from ₹3240 to ₹4536. By what percent did it go up?
  27. 27.A shop sells 680 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
  28. 28.The price of a school bag changes from ₹4300 to ₹5590. By what percent did it go up?
  29. 29.A price goes up by 50% 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 ₹3220 to ₹1610. By what percent did it come down?
  31. 31.The price of a school bag changes from ₹4980 to ₹3984. By what percent did it come down?
  32. 32.A price comes down by 5% and then comes down by 30% more. By what percent has it come down in all? =
  33. 33.A shop sells 3820 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
  34. 34.The price of a bicycle is ₹4180. It goes up by 5%. What is the new price (in ₹)?
  35. 35.A water tank holds 1880 litres. 30% of the water is used. How many litres are left?
  36. 36.A price comes down by 50% and then comes down by 30% more. By what percent has it come down in all? =
  37. 37.The price of a bicycle is ₹2980. It goes up by 40%. What is the new price (in ₹)?
  38. 38.A water tank holds 2420 litres. 50% of the water is used. How many litres are left?
  39. 39.A water tank holds 4140 litres. 40% of the water is used. How many litres are left?
  40. 40.The price of a school bag changes from ₹1260 to ₹756. By what percent did it come down?

Answer key

  1. 43
  2. 10.25
  3. 2645
  4. 1450
  5. 18.75
  6. 15
  7. 5
  8. 3066
  9. 28
  10. 4002
  11. 4440
  12. 4851
  13. 459
  14. 2205
  15. 848
  16. 3192
  17. 2278
  18. 48
  19. 30
  20. 3102
  21. 3220
  22. 576
  23. 57.5
  24. 1540
  25. 1139
  26. 40
  27. 1020
  28. 30
  29. 42.5
  30. 50
  31. 20
  32. 33.5
  33. 4393
  34. 4389
  35. 1316
  36. 65
  37. 4172
  38. 1210
  39. 2484
  40. 40

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