← Percentage increase and decrease lesson New set →

Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 331 · 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 shop sells 1160 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
  2. 2.The price of a bicycle is ₹1880. It goes up by 15%. What is the new price (in ₹)?
  3. 3.The price of a bicycle is ₹4180. It goes up by 50%. What is the new price (in ₹)?
  4. 4.A price comes down by 5% and then comes down by 40% more. By what percent has it come down in all? =
  5. 5.A price comes down by 15% and then comes down by 5% more. By what percent has it come down in all? =
  6. 6.The price of a school bag changes from ₹320 to ₹368. By what percent did it go up?
  7. 7.The price of a school bag changes from ₹520 to ₹390. By what percent did it come down?
  8. 8.The price of a school bag changes from ₹2580 to ₹1935. By what percent did it come down?
  9. 9.The price of a school bag changes from ₹540 to ₹810. By what percent did it go up?
  10. 10.The price of a school bag changes from ₹300 to ₹315. By what percent did it go up?
  11. 11.A water tank holds 180 litres. 10% of the water is used. How many litres are left?
  12. 12.The price of a school bag changes from ₹2900 to ₹2465. By what percent did it come down?
  13. 13.The price of a school bag changes from ₹3200 to ₹3840. By what percent did it go up?
  14. 14.A water tank holds 60 litres. 20% of the water is used. How many litres are left?
  15. 15.A shop sells 440 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
  16. 16.A water tank holds 3780 litres. 25% of the water is used. How many litres are left?
  17. 17.The price of a bicycle is ₹600. It goes up by 30%. What is the new price (in ₹)?
  18. 18.A water tank holds 4660 litres. 40% of the water is used. How many litres are left?
  19. 19.A water tank holds 3360 litres. 10% of the water is used. How many litres are left?
  20. 20.The price of a school bag changes from ₹2260 to ₹2599. By what percent did it go up?
  21. 21.A town has 200 people. Its population grows by 50%. How many people live there now?
  22. 22.The price of a bicycle is ₹2140. It goes up by 5%. What is the new price (in ₹)?
  23. 23.The price of a school bag changes from ₹1480 to ₹1406. By what percent did it come down?
  24. 24.A shop sells 2340 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
  25. 25.A water tank holds 2620 litres. 5% of the water is used. How many litres are left?
  26. 26.A price comes down by 25% and then comes down by 50% more. By what percent has it come down in all? =
  27. 27.The price of a bicycle is ₹3280. It goes up by 10%. What is the new price (in ₹)?
  28. 28.A water tank holds 600 litres. 20% of the water is used. How many litres are left?
  29. 29.The price of a bicycle is ₹840. It goes up by 5%. What is the new price (in ₹)?
  30. 30.The price of a school bag changes from ₹840 to ₹1008. By what percent did it go up?
  31. 31.A price goes up by 40% and then goes up by 15% more. By what percent has it gone up in all? =
  32. 32.A water tank holds 2860 litres. 25% of the water is used. How many litres are left?
  33. 33.A water tank holds 580 litres. 30% of the water is used. How many litres are left?
  34. 34.The price of a school bag changes from ₹4020 to ₹3216. By what percent did it come down?
  35. 35.A water tank holds 1460 litres. 30% of the water is used. How many litres are left?
  36. 36.A price goes up by 50% and then goes up by 20% more. By what percent has it gone up in all? =
  37. 37.The price of a bicycle is ₹4640. It goes up by 5%. What is the new price (in ₹)?
  38. 38.A price goes up by 5% and then goes up by 40% more. By what percent has it gone up in all? =
  39. 39.A shop sells 2540 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
  40. 40.A water tank holds 1100 litres. 25% of the water is used. How many litres are left?

Answer key

  1. 1218
  2. 2162
  3. 6270
  4. 43
  5. 19.25
  6. 15
  7. 25
  8. 25
  9. 50
  10. 5
  11. 162
  12. 15
  13. 20
  14. 48
  15. 550
  16. 2835
  17. 780
  18. 2796
  19. 3024
  20. 15
  21. 300
  22. 2247
  23. 5
  24. 3042
  25. 2489
  26. 62.5
  27. 3608
  28. 480
  29. 882
  30. 20
  31. 61
  32. 2145
  33. 406
  34. 20
  35. 1022
  36. 80
  37. 4872
  38. 47
  39. 2794
  40. 825

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