Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 954 · 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 shop sells 4020 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
2. 2.A shop sells 3000 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
3. 3.The price of a school bag changes from ₹1720 to ₹1892. By what percent did it go up?
4. 4.A water tank holds 3760 litres. 20% of the water is used. How many litres are left?
5. 5.A town has 4020 people. Its population grows by 25%. How many people live there now?
6. 6.A town has 4140 people. Its population grows by 25%. How many people live there now?
7. 7.A price comes down by 40% and then comes down by 40% more. By what percent has it come down in all? =
8. 8.The price of a school bag changes from ₹3960 to ₹3366. By what percent did it come down?
9. 9.A water tank holds 720 litres. 40% of the water is used. How many litres are left?
10. 10.A water tank holds 820 litres. 20% of the water is used. How many litres are left?
11. 11.A price comes down by 20% and then comes down by 50% more. By what percent has it come down in all? =
12. 12.A shop sells 4660 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
13. 13.A price goes up by 10% and then goes up by 10% more. By what percent has it gone up in all? =
14. 14.A water tank holds 1120 litres. 40% of the water is used. How many litres are left?
15. 15.A price goes up by 5% and then goes up by 5% more. By what percent has it gone up in all? =
16. 16.A price goes up by 5% and then goes up by 40% more. By what percent has it gone up in all? =
17. 17.A water tank holds 3320 litres. 5% of the water is used. How many litres are left?
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 3080 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
20. 20.The price of a school bag changes from ₹4920 to ₹6396. By what percent did it go up?
21. 21.A price comes down by 40% and then comes down by 20% more. By what percent has it come down in all? =
22. 22.A shop sells 2640 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
23. 23.A price goes up by 40% and then goes up by 5% more. By what percent has it gone up in all? =
24. 24.The price of a bicycle is ₹920. It goes up by 40%. What is the new price (in ₹)?
25. 25.A shop sells 560 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
26. 26.A price goes up by 10% and then goes up by 25% more. By what percent has it gone up in all? =
27. 27.A water tank holds 1620 litres. 20% of the water is used. How many litres are left?
28. 28.The price of a school bag changes from ₹1240 to ₹1860. By what percent did it go up?
29. 29.A shop sells 680 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
30. 30.A water tank holds 280 litres. 5% of the water is used. How many litres are left?
31. 31.A water tank holds 4480 litres. 25% of the water is used. How many litres are left?
32. 32.The price of a school bag changes from ₹760 to ₹912. By what percent did it go up?
33. 33.A price goes up by 40% and then comes down by 25%. By what percent has it gone up in all? =
34. 34.A water tank holds 4940 litres. 15% of the water is used. How many litres are left?
35. 35.A shop sells 3940 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
36. 36.A price goes up by 20% and then goes up by 25% more. By what percent has it gone up in all? =
37. 37.The price of a bicycle is ₹2940. It goes up by 5%. What is the new price (in ₹)?
38. 38.A town has 4920 people. Its population grows by 5%. How many people live there now?
39. 39.A water tank holds 3940 litres. 50% of the water is used. How many litres are left?
40. 40.A water tank holds 4440 litres. 10% of the water is used. How many litres are left?

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