Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 312 · 40 questions

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.

1. 1.A price comes down by 10% and then comes down by 20% more. By what percent has it come down in all? =
2. 2.A water tank holds 520 litres. 30% of the water is used. How many litres are left?
3. 3.A price comes down by 15% and then comes down by 15% more. By what percent has it come down in all? =
4. 4.A price goes up by 25% and then goes up by 50% more. By what percent has it gone up in all? =
5. 5.A price goes up by 30% and then goes up by 40% more. By what percent has it gone up in all? =
6. 6.A shop sells 2540 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
7. 7.A water tank holds 540 litres. 5% of the water is used. How many litres are left?
8. 8.A town has 1820 people. Its population grows by 25%. How many people live there now?
9. 9.The price of a bicycle is ₹4700. It goes up by 30%. What is the new price (in ₹)?
10. 10.A water tank holds 3540 litres. 10% of the water is used. How many litres are left?
11. 11.A water tank holds 500 litres. 15% of the water is used. How many litres are left?
12. 12.A price goes up by 25% and then goes up by 25% more. By what percent has it gone up in all? =
13. 13.The price of a school bag changes from ₹60 to ₹54. By what percent did it come down?
14. 14.A shop sells 3920 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
15. 15.A water tank holds 560 litres. 30% of the water is used. How many litres are left?
16. 16.A water tank holds 2440 litres. 50% of the water is used. How many litres are left?
17. 17.A price comes down by 40% and then comes down by 10% more. By what percent has it come down in all? =
18. 18.A price goes up by 25% and then comes down by 15%. By what percent has it gone up in all? =
19. 19.A shop sells 4160 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
20. 20.A water tank holds 240 litres. 5% of the water is used. How many litres are left?
21. 21.The price of a bicycle is ₹2740. It goes up by 20%. What is the new price (in ₹)?
22. 22.The price of a school bag changes from ₹2680 to ₹1608. By what percent did it come down?
23. 23.A shop sells 1660 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
24. 24.The price of a school bag changes from ₹940 to ₹893. By what percent did it come down?
25. 25.A price goes up by 5% and then goes up by 20% more. By what percent has it gone up in all? =
26. 26.The price of a bicycle is ₹3500. It goes up by 50%. What is the new price (in ₹)?
27. 27.A price goes up by 5% and then goes up by 5% more. By what percent has it gone up in all? =
28. 28.A water tank holds 4060 litres. 50% of the water is used. How many litres are left?
29. 29.The price of a school bag changes from ₹1720 to ₹2064. By what percent did it go up?
30. 30.A price comes down by 5% and then comes down by 25% more. By what percent has it come down in all? =
31. 31.The price of a school bag changes from ₹4300 to ₹3225. By what percent did it come down?
32. 32.A shop sells 3140 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
33. 33.A price goes up by 50% and then goes up by 5% more. By what percent has it gone up in all? =
34. 34.A price comes down by 50% and then comes down by 20% more. By what percent has it come down in all? =
35. 35.The price of a school bag changes from ₹2340 to ₹1404. By what percent did it come down?
36. 36.The price of a school bag changes from ₹1820 to ₹2730. By what percent did it go up?
37. 37.A water tank holds 1740 litres. 50% of the water is used. How many litres are left?
38. 38.A shop sells 4120 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
39. 39.A town has 3140 people. Its population grows by 50%. How many people live there now?
40. 40.A price comes down by 20% and then comes down by 25% more. By what percent has it come down in all? =

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