Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 567 · 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 3260 litres. 50% of the water is used. How many litres are left?
2. 2.A water tank holds 520 litres. 50% of the water is used. How many litres are left?
3. 3.The price of a school bag changes from ₹3140 to ₹3297. By what percent did it go up?
4. 4.The price of a bicycle is ₹3320. It goes up by 5%. What is the new price (in ₹)?
5. 5.The price of a school bag changes from ₹2280 to ₹2166. By what percent did it come down?
6. 6.The price of a school bag changes from ₹2840 to ₹2130. By what percent did it come down?
7. 7.A water tank holds 1320 litres. 40% of the water is used. How many litres are left?
8. 8.The price of a school bag changes from ₹4640 to ₹5800. By what percent did it go up?
9. 9.A price goes up by 30% and then goes up by 50% more. By what percent has it gone up in all? =
10. 10.A price goes up by 25% and then goes up by 20% more. By what percent has it gone up in all? =
11. 11.A price comes down by 40% and then comes down by 50% more. By what percent has it come down in all? =
12. 12.A town has 3940 people. Its population grows by 5%. How many people live there now?
13. 13.A water tank holds 840 litres. 10% of the water is used. How many litres are left?
14. 14.A shop sells 4160 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
15. 15.A water tank holds 3860 litres. 50% of the water is used. How many litres are left?
16. 16.A shop sells 500 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
17. 17.A town has 200 people. Its population grows by 5%. How many people live there now?
18. 18.The price of a bicycle is ₹1460. It goes up by 50%. What is the new price (in ₹)?
19. 19.A water tank holds 4140 litres. 15% of the water is used. How many litres are left?
20. 20.The price of a school bag changes from ₹1320 to ₹660. By what percent did it come down?
21. 21.A town has 4160 people. Its population grows by 10%. How many people live there now?
22. 22.The price of a school bag changes from ₹1840 to ₹2576. By what percent did it go up?
23. 23.A price goes up by 15% and then goes up by 15% more. By what percent has it gone up in all? =
24. 24.A shop sells 4600 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
25. 25.A price goes up by 30% and then goes up by 20% more. By what percent has it gone up in all? =
26. 26.A price goes up by 5% and then goes up by 10% more. By what percent has it gone up in all? =
27. 27.The price of a bicycle is ₹2600. It goes up by 25%. What is the new price (in ₹)?
28. 28.A price goes up by 10% and then goes up by 5% more. By what percent has it gone up in all? =
29. 29.A water tank holds 1980 litres. 5% of the water is used. How many litres are left?
30. 30.A shop sells 520 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
31. 31.A town has 3880 people. Its population grows by 20%. How many people live there now?
32. 32.A water tank holds 1740 litres. 20% of the water is used. How many litres are left?
33. 33.The price of a bicycle is ₹4640. It goes up by 25%. What is the new price (in ₹)?
34. 34.A price comes down by 30% and then comes down by 25% more. By what percent has it come down in all? =
35. 35.A water tank holds 2060 litres. 10% of the water is used. How many litres are left?
36. 36.A town has 4840 people. Its population grows by 10%. How many people live there now?
37. 37.The price of a school bag changes from ₹2640 to ₹1980. By what percent did it come down?
38. 38.The price of a school bag changes from ₹4880 to ₹5612. By what percent did it go up?
39. 39.A price goes up by 25% and then goes up by 10% more. By what percent has it gone up in all? =
40. 40.A water tank holds 2460 litres. 50% of the water is used. How many litres are left?

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