Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 594 · 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 water tank holds 2280 litres. 50% of the water is used. How many litres are left?
2. 2.The price of a school bag changes from ₹4100 to ₹5330. By what percent did it go up?
3. 3.A water tank holds 3460 litres. 15% of the water is used. How many litres are left?
4. 4.A water tank holds 3060 litres. 20% of the water is used. How many litres are left?
5. 5.A town has 4240 people. Its population grows by 20%. How many people live there now?
6. 6.A shop sells 4380 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
7. 7.The price of a bicycle is ₹580. It goes up by 10%. What is the new price (in ₹)?
8. 8.A price goes up by 40% and then goes up by 5% more. By what percent has it gone up in all? =
9. 9.A water tank holds 1760 litres. 15% of the water is used. How many litres are left?
10. 10.A town has 3600 people. Its population grows by 50%. How many people live there now?
11. 11.A water tank holds 2280 litres. 20% of the water is used. How many litres are left?
12. 12.A water tank holds 1620 litres. 30% of the water is used. How many litres are left?
13. 13.The price of a school bag changes from ₹3640 to ₹4186. By what percent did it go up?
14. 14.A water tank holds 2780 litres. 40% of the water is used. How many litres are left?
15. 15.A water tank holds 2680 litres. 10% of the water is used. How many litres are left?
16. 16.A price goes up by 10% and then goes up by 20% more. By what percent has it gone up in all? =
17. 17.A price comes down by 25% and then comes down by 20% more. By what percent has it come down in all? =
18. 18.A town has 1700 people. Its population grows by 5%. How many people live there now?
19. 19.A shop sells 1060 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
20. 20.A price goes up by 15% and then goes up by 10% more. By what percent has it gone up in all? =
21. 21.A water tank holds 3560 litres. 5% of the water is used. How many litres are left?
22. 22.The price of a school bag changes from ₹4440 to ₹4218. By what percent did it come down?
23. 23.A water tank holds 120 litres. 50% of the water is used. How many litres are left?
24. 24.A shop sells 500 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
25. 25.A water tank holds 400 litres. 10% of the water is used. How many litres are left?
26. 26.A town has 1560 people. Its population grows by 15%. How many people live there now?
27. 27.A town has 780 people. Its population grows by 30%. How many people live there now?
28. 28.A water tank holds 3940 litres. 20% of the water is used. How many litres are left?
29. 29.A shop sells 920 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
30. 30.A water tank holds 2520 litres. 20% of the water is used. How many litres are left?
31. 31.A price goes up by 50% and then goes up by 5% more. By what percent has it gone up in all? =
32. 32.The price of a bicycle is ₹220. It goes up by 15%. What is the new price (in ₹)?
33. 33.A shop sells 880 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
34. 34.A water tank holds 3680 litres. 15% of the water is used. How many litres are left?
35. 35.The price of a bicycle is ₹2520. It goes up by 25%. What is the new price (in ₹)?
36. 36.A price comes down by 5% and then comes down by 10% more. By what percent has it come down in all? =
37. 37.A price goes up by 5% and then goes up by 5% more. By what percent has it gone up in all? =
38. 38.A price goes up by 25% and then goes up by 40% more. By what percent has it gone up in all? =
39. 39.The price of a school bag changes from ₹2660 to ₹3724. By what percent did it go up?
40. 40.A water tank holds 4160 litres. 40% of the water is used. How many litres are left?

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