Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 650 · 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 15% and then comes down by 10% more. By what percent has it come down in all? =
2. 2.The price of a school bag changes from ₹360 to ₹414. By what percent did it go up?
3. 3.A water tank holds 2500 litres. 5% of the water is used. How many litres are left?
4. 4.A price comes down by 15% and then comes down by 5% more. By what percent has it come down in all? =
5. 5.A water tank holds 2420 litres. 10% of the water is used. How many litres are left?
6. 6.A price goes up by 5% and then goes up by 30% more. By what percent has it gone up in all? =
7. 7.A water tank holds 3100 litres. 50% of the water is used. How many litres are left?
8. 8.The price of a school bag changes from ₹2760 to ₹3450. By what percent did it go up?
9. 9.A water tank holds 3760 litres. 10% of the water is used. How many litres are left?
10. 10.A water tank holds 760 litres. 20% of the water is used. How many litres are left?
11. 11.A water tank holds 2740 litres. 40% of the water is used. How many litres are left?
12. 12.A shop sells 1160 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
13. 13.The price of a school bag changes from ₹2500 to ₹2750. By what percent did it go up?
14. 14.A price goes up by 10% and then goes up by 40% more. By what percent has it gone up in all? =
15. 15.A town has 3840 people. Its population grows by 5%. How many people live there now?
16. 16.A price comes down by 15% and then comes down by 30% more. By what percent has it come down in all? =
17. 17.A water tank holds 1480 litres. 20% of the water is used. How many litres are left?
18. 18.A price goes up by 40% and then goes up by 5% more. By what percent has it gone up in all? =
19. 19.A price goes up by 25% and then comes down by 5%. By what percent has it gone up in all? =
20. 20.The price of a school bag changes from ₹3680 to ₹5152. By what percent did it go up?
21. 21.A water tank holds 3860 litres. 10% of the water is used. How many litres are left?
22. 22.A water tank holds 1800 litres. 25% of the water is used. How many litres are left?
23. 23.A water tank holds 3440 litres. 30% of the water is used. How many litres are left?
24. 24.A price comes down by 40% and then comes down by 25% more. By what percent has it come down in all? =
25. 25.The price of a bicycle is ₹3920. It goes up by 10%. What is the new price (in ₹)?
26. 26.The price of a bicycle is ₹1800. It goes up by 25%. What is the new price (in ₹)?
27. 27.The price of a school bag changes from ₹4360 to ₹5232. By what percent did it go up?
28. 28.The price of a school bag changes from ₹680 to ₹714. By what percent did it go up?
29. 29.A price goes up by 15% and then comes down by 10%. By what percent has it gone up in all? =
30. 30.A water tank holds 2020 litres. 25% of the water is used. How many litres are left?
31. 31.A water tank holds 2060 litres. 50% of the water is used. How many litres are left?
32. 32.The price of a bicycle is ₹3160. It goes up by 40%. What is the new price (in ₹)?
33. 33.A price comes down by 5% and then comes down by 10% more. By what percent has it come down in all? =
34. 34.The price of a bicycle is ₹4680. It goes up by 5%. What is the new price (in ₹)?
35. 35.A water tank holds 1820 litres. 25% of the water is used. How many litres are left?
36. 36.A price goes up by 30% and then goes up by 15% more. By what percent has it gone up in all? =
37. 37.A water tank holds 880 litres. 30% of the water is used. How many litres are left?
38. 38.A shop sells 2120 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 ₹2940 to ₹3528. By what percent did it go up?
40. 40.A town has 4900 people. Its population grows by 25%. How many people live there now?

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