← Percentage increase and decrease lesson New set →

Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 888 · 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 ₹2020 to ₹2323. By what percent did it go up?
  2. 2.A shop sells 1540 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
  3. 3.A water tank holds 4360 litres. 50% of the water is used. How many litres are left?
  4. 4.The price of a school bag changes from ₹3920 to ₹4900. By what percent did it go up?
  5. 5.The price of a school bag changes from ₹1900 to ₹950. By what percent did it come down?
  6. 6.The price of a school bag changes from ₹4340 to ₹4774. By what percent did it go up?
  7. 7.A price goes up by 10% and then goes up by 25% more. By what percent has it gone up in all? =
  8. 8.The price of a school bag changes from ₹2600 to ₹3380. By what percent did it go up?
  9. 9.The price of a school bag changes from ₹3680 to ₹4416. By what percent did it go up?
  10. 10.A price goes up by 15% and then goes up by 10% more. By what percent has it gone up in all? =
  11. 11.A water tank holds 3460 litres. 25% of the water is used. How many litres are left?
  12. 12.A price goes up by 50% and then goes up by 20% more. By what percent has it gone up in all? =
  13. 13.A price comes down by 30% and then comes down by 15% more. By what percent has it come down in all? =
  14. 14.A water tank holds 4380 litres. 25% of the water is used. How many litres are left?
  15. 15.A water tank holds 480 litres. 40% of the water is used. How many litres are left?
  16. 16.The price of a school bag changes from ₹3940 to ₹5910. By what percent did it go up?
  17. 17.A shop sells 3700 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
  18. 18.A shop sells 1460 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
  19. 19.The price of a school bag changes from ₹460 to ₹414. By what percent did it come down?
  20. 20.A shop sells 1180 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
  21. 21.A town has 1700 people. Its population grows by 50%. How many people live there now?
  22. 22.A price goes up by 5% and then goes up by 15% more. By what percent has it gone up in all? =
  23. 23.The price of a school bag changes from ₹2620 to ₹1310. By what percent did it come down?
  24. 24.A price comes down by 25% and then comes down by 50% more. By what percent has it come down in all? =
  25. 25.A price comes down by 40% and then comes down by 5% more. By what percent has it come down in all? =
  26. 26.A shop sells 4980 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
  27. 27.The price of a school bag changes from ₹880 to ₹1320. By what percent did it go up?
  28. 28.A town has 1960 people. Its population grows by 5%. How many people live there now?
  29. 29.The price of a school bag changes from ₹2900 to ₹2755. By what percent did it come down?
  30. 30.A water tank holds 2780 litres. 20% of the water is used. How many litres are left?
  31. 31.A water tank holds 1840 litres. 20% of the water is used. How many litres are left?
  32. 32.A price goes up by 50% and then goes up by 10% more. By what percent has it gone up in all? =
  33. 33.A town has 1520 people. Its population grows by 40%. How many people live there now?
  34. 34.The price of a bicycle is ₹1440. It goes up by 50%. What is the new price (in ₹)?
  35. 35.A water tank holds 4220 litres. 40% of the water is used. How many litres are left?
  36. 36.The price of a school bag changes from ₹1240 to ₹1736. By what percent did it go up?
  37. 37.A price comes down by 5% and then comes down by 50% more. By what percent has it come down in all? =
  38. 38.The price of a bicycle is ₹560. It goes up by 30%. What is the new price (in ₹)?
  39. 39.A water tank holds 4720 litres. 25% of the water is used. How many litres are left?
  40. 40.The price of a school bag changes from ₹520 to ₹312. By what percent did it come down?

Answer key

  1. 15
  2. 2156
  3. 2180
  4. 25
  5. 50
  6. 10
  7. 37.5
  8. 30
  9. 20
  10. 26.5
  11. 2595
  12. 80
  13. 40.5
  14. 3285
  15. 288
  16. 50
  17. 5180
  18. 1606
  19. 10
  20. 1652
  21. 2550
  22. 20.75
  23. 50
  24. 62.5
  25. 43
  26. 5976
  27. 50
  28. 2058
  29. 5
  30. 2224
  31. 1472
  32. 65
  33. 2128
  34. 2160
  35. 2532
  36. 40
  37. 52.5
  38. 728
  39. 3540
  40. 40

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