← Percentage increase and decrease lesson New set →

Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 35 · 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 bicycle is ₹4800. It goes up by 5%. What is the new price (in ₹)?
  2. 2.The price of a school bag changes from ₹420 to ₹336. By what percent did it come down?
  3. 3.A water tank holds 980 litres. 10% of the water is used. How many litres are left?
  4. 4.A town has 140 people. Its population grows by 40%. How many people live there now?
  5. 5.The price of a bicycle is ₹1900. It goes up by 40%. What is the new price (in ₹)?
  6. 6.A shop sells 2620 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
  7. 7.The price of a school bag changes from ₹1180 to ₹1003. By what percent did it come down?
  8. 8.The price of a school bag changes from ₹3580 to ₹5012. By what percent did it go up?
  9. 9.The price of a school bag changes from ₹280 to ₹266. By what percent did it come down?
  10. 10.A price comes down by 15% and then comes down by 10% more. By what percent has it come down in all? =
  11. 11.A price comes down by 30% and then comes down by 40% more. By what percent has it come down in all? =
  12. 12.A water tank holds 3800 litres. 5% of the water is used. How many litres are left?
  13. 13.The price of a school bag changes from ₹3300 to ₹2640. By what percent did it come down?
  14. 14.The price of a school bag changes from ₹580 to ₹290. By what percent did it come down?
  15. 15.A price goes up by 40% and then goes up by 25% more. By what percent has it gone up in all? =
  16. 16.A price comes down by 30% and then comes down by 25% more. By what percent has it come down in all? =
  17. 17.A water tank holds 2400 litres. 15% of the water is used. How many litres are left?
  18. 18.A price goes up by 20% and then goes up by 5% more. By what percent has it gone up in all? =
  19. 19.A water tank holds 3720 litres. 50% of the water is used. How many litres are left?
  20. 20.A town has 3820 people. Its population grows by 5%. How many people live there now?
  21. 21.A price goes up by 15% and then goes up by 20% more. By what percent has it gone up in all? =
  22. 22.A water tank holds 2620 litres. 20% of the water is used. How many litres are left?
  23. 23.A water tank holds 4680 litres. 20% of the water is used. How many litres are left?
  24. 24.A price goes up by 15% and then goes up by 25% more. By what percent has it gone up in all? =
  25. 25.A water tank holds 4080 litres. 20% of the water is used. How many litres are left?
  26. 26.A water tank holds 4400 litres. 20% of the water is used. How many litres are left?
  27. 27.The price of a school bag changes from ₹2540 to ₹1524. By what percent did it come down?
  28. 28.A price goes up by 5% and then goes up by 10% more. By what percent has it gone up in all? =
  29. 29.A price comes down by 40% and then comes down by 50% more. By what percent has it come down in all? =
  30. 30.A price goes up by 10% and then goes up by 10% more. By what percent has it gone up in all? =
  31. 31.The price of a school bag changes from ₹80 to ₹100. By what percent did it go up?
  32. 32.A shop sells 500 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
  33. 33.The price of a school bag changes from ₹4180 to ₹5852. By what percent did it go up?
  34. 34.The price of a bicycle is ₹3520. It goes up by 20%. What is the new price (in ₹)?
  35. 35.A price goes up by 40% and then comes down by 15%. By what percent has it gone up in all? =
  36. 36.A town has 1080 people. Its population grows by 25%. How many people live there now?
  37. 37.The price of a school bag changes from ₹1000 to ₹1300. By what percent did it go up?
  38. 38.A water tank holds 280 litres. 5% of the water is used. How many litres are left?
  39. 39.A price goes up by 10% and then goes up by 20% more. By what percent has it gone up in all? =
  40. 40.A price goes up by 20% and then comes down by 5%. By what percent has it gone up in all? =

Answer key

  1. 5040
  2. 20
  3. 882
  4. 196
  5. 2660
  6. 2882
  7. 15
  8. 40
  9. 5
  10. 23.5
  11. 58
  12. 3610
  13. 20
  14. 50
  15. 75
  16. 47.5
  17. 2040
  18. 26
  19. 1860
  20. 4011
  21. 38
  22. 2096
  23. 3744
  24. 43.75
  25. 3264
  26. 3520
  27. 40
  28. 15.5
  29. 70
  30. 21
  31. 25
  32. 700
  33. 40
  34. 4224
  35. 19
  36. 1350
  37. 30
  38. 266
  39. 32
  40. 14

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