← Percentage increase and decrease lesson New set →

Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 519 · 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 ₹3780 to ₹2646. By what percent did it come down?
  2. 2.A town has 4960 people. Its population grows by 50%. How many people live there now?
  3. 3.A town has 2460 people. Its population grows by 40%. How many people live there now?
  4. 4.The price of a school bag changes from ₹4360 to ₹3706. By what percent did it come down?
  5. 5.A price comes down by 5% and then comes down by 25% more. By what percent has it come down in all? =
  6. 6.The price of a school bag changes from ₹3480 to ₹2958. By what percent did it come down?
  7. 7.The price of a bicycle is ₹860. It goes up by 20%. What is the new price (in ₹)?
  8. 8.A town has 2520 people. Its population grows by 5%. How many people live there now?
  9. 9.The price of a school bag changes from ₹1580 to ₹1659. By what percent did it go up?
  10. 10.A price goes up by 40% and then goes up by 50% more. By what percent has it gone up in all? =
  11. 11.A water tank holds 4640 litres. 40% of the water is used. How many litres are left?
  12. 12.The price of a bicycle is ₹4480. It goes up by 5%. What is the new price (in ₹)?
  13. 13.A price goes up by 15% and then goes up by 30% more. By what percent has it gone up in all? =
  14. 14.The price of a school bag changes from ₹1240 to ₹992. By what percent did it come down?
  15. 15.A price goes up by 20% and then goes up by 15% more. By what percent has it gone up in all? =
  16. 16.A shop sells 1240 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
  17. 17.A water tank holds 1900 litres. 5% of the water is used. How many litres are left?
  18. 18.A town has 1160 people. Its population grows by 15%. How many people live there now?
  19. 19.The price of a school bag changes from ₹3180 to ₹2544. By what percent did it come down?
  20. 20.A price goes up by 40% and then comes down by 20%. By what percent has it gone up in all? =
  21. 21.A price comes down by 20% and then comes down by 10% more. By what percent has it come down in all? =
  22. 22.The price of a bicycle is ₹2440. It goes up by 20%. What is the new price (in ₹)?
  23. 23.The price of a school bag changes from ₹4340 to ₹4123. By what percent did it come down?
  24. 24.The price of a school bag changes from ₹780 to ₹819. By what percent did it go up?
  25. 25.The price of a bicycle is ₹80. It goes up by 20%. What is the new price (in ₹)?
  26. 26.A shop sells 1780 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
  27. 27.The price of a school bag changes from ₹340 to ₹255. By what percent did it come down?
  28. 28.A water tank holds 1020 litres. 30% of the water is used. How many litres are left?
  29. 29.A price comes down by 25% and then comes down by 30% more. By what percent has it come down in all? =
  30. 30.The price of a bicycle is ₹3280. It goes up by 5%. What is the new price (in ₹)?
  31. 31.The price of a bicycle is ₹60. It goes up by 40%. What is the new price (in ₹)?
  32. 32.A water tank holds 1920 litres. 40% of the water is used. How many litres are left?
  33. 33.The price of a bicycle is ₹2460. It goes up by 30%. What is the new price (in ₹)?
  34. 34.The price of a bicycle is ₹1000. It goes up by 25%. What is the new price (in ₹)?
  35. 35.A price comes down by 15% and then comes down by 25% more. By what percent has it come down in all? =
  36. 36.A price comes down by 50% and then comes down by 50% more. By what percent has it come down in all? =
  37. 37.A water tank holds 4700 litres. 10% of the water is used. How many litres are left?
  38. 38.A shop sells 1880 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
  39. 39.The price of a school bag changes from ₹2160 to ₹1620. By what percent did it come down?
  40. 40.A water tank holds 1820 litres. 25% of the water is used. How many litres are left?

Answer key

  1. 30
  2. 7440
  3. 3444
  4. 15
  5. 28.75
  6. 15
  7. 1032
  8. 2646
  9. 5
  10. 110
  11. 2784
  12. 4704
  13. 49.5
  14. 20
  15. 38
  16. 1488
  17. 1805
  18. 1334
  19. 20
  20. 12
  21. 28
  22. 2928
  23. 5
  24. 5
  25. 96
  26. 1869
  27. 25
  28. 714
  29. 47.5
  30. 3444
  31. 84
  32. 1152
  33. 3198
  34. 1250
  35. 36.25
  36. 75
  37. 4230
  38. 2350
  39. 25
  40. 1365

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