← Percentage increase and decrease lesson New set →

Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 79 · 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 ₹4240 to ₹2544. By what percent did it come down?
  2. 2.The price of a bicycle is ₹940. It goes up by 10%. What is the new price (in ₹)?
  3. 3.The price of a bicycle is ₹1360. It goes up by 10%. What is the new price (in ₹)?
  4. 4.The price of a school bag changes from ₹1120 to ₹560. By what percent did it come down?
  5. 5.A water tank holds 1820 litres. 25% of the water is used. How many litres are left?
  6. 6.The price of a school bag changes from ₹2280 to ₹1710. By what percent did it come down?
  7. 7.A price comes down by 5% and then comes down by 10% more. By what percent has it come down in all? =
  8. 8.A shop sells 360 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
  9. 9.A water tank holds 860 litres. 40% of the water is used. How many litres are left?
  10. 10.A town has 1100 people. Its population grows by 50%. How many people live there now?
  11. 11.A town has 380 people. Its population grows by 40%. How many people live there now?
  12. 12.The price of a bicycle is ₹2580. It goes up by 20%. What is the new price (in ₹)?
  13. 13.A price comes down by 30% and then comes down by 40% more. By what percent has it come down in all? =
  14. 14.A price goes up by 40% and then comes down by 5%. By what percent has it gone up in all? =
  15. 15.A water tank holds 3800 litres. 40% of the water is used. How many litres are left?
  16. 16.The price of a school bag changes from ₹2020 to ₹2626. By what percent did it go up?
  17. 17.A water tank holds 2360 litres. 25% of the water is used. How many litres are left?
  18. 18.The price of a bicycle is ₹2060. It goes up by 30%. What is the new price (in ₹)?
  19. 19.A water tank holds 3020 litres. 15% of the water is used. How many litres are left?
  20. 20.A price goes up by 25% and then goes up by 10% more. By what percent has it gone up in all? =
  21. 21.A water tank holds 1220 litres. 15% of the water is used. How many litres are left?
  22. 22.The price of a school bag changes from ₹2040 to ₹1836. By what percent did it come down?
  23. 23.The price of a school bag changes from ₹1280 to ₹1408. By what percent did it go up?
  24. 24.The price of a bicycle is ₹3840. It goes up by 30%. What is the new price (in ₹)?
  25. 25.A price goes up by 20% and then comes down by 5%. By what percent has it gone up in all? =
  26. 26.A price goes up by 50% and then comes down by 15%. By what percent has it gone up in all? =
  27. 27.The price of a school bag changes from ₹800 to ₹920. By what percent did it go up?
  28. 28.A water tank holds 1140 litres. 10% of the water is used. How many litres are left?
  29. 29.The price of a school bag changes from ₹300 to ₹375. By what percent did it go up?
  30. 30.The price of a school bag changes from ₹1600 to ₹800. By what percent did it come down?
  31. 31.A water tank holds 3500 litres. 5% of the water is used. How many litres are left?
  32. 32.A shop sells 1400 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
  33. 33.A town has 2720 people. Its population grows by 50%. How many people live there now?
  34. 34.A water tank holds 2060 litres. 25% of the water is used. How many litres are left?
  35. 35.A price comes down by 20% and then comes down by 25% more. By what percent has it come down in all? =
  36. 36.The price of a school bag changes from ₹3800 to ₹3230. By what percent did it come down?
  37. 37.The price of a bicycle is ₹300. It goes up by 15%. What is the new price (in ₹)?
  38. 38.The price of a school bag changes from ₹3240 to ₹1620. By what percent did it come down?
  39. 39.A shop sells 2520 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
  40. 40.The price of a school bag changes from ₹4280 to ₹2140. By what percent did it come down?

Answer key

  1. 40
  2. 1034
  3. 1496
  4. 50
  5. 1365
  6. 25
  7. 14.5
  8. 468
  9. 516
  10. 1650
  11. 532
  12. 3096
  13. 58
  14. 33
  15. 2280
  16. 30
  17. 1770
  18. 2678
  19. 2567
  20. 37.5
  21. 1037
  22. 10
  23. 10
  24. 4992
  25. 14
  26. 27.5
  27. 15
  28. 1026
  29. 25
  30. 50
  31. 3325
  32. 1820
  33. 4080
  34. 1545
  35. 40
  36. 15
  37. 345
  38. 50
  39. 2772
  40. 50

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