Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 842 · 40 sums

The method (Grow it every year): Year by year: new amount = amount × (100 + R) ÷ 100. Amount after T years = P × (1 + R/100)ᵀ; compound interest = amount − P. A value falling by R% each year: × (100 − R) ÷ 100 every year. For 2 years, CI − SI = P × R × R ÷ 10000.

1. 1.What is the difference between the compound interest and the simple interest on ₹46400 at 25% per year for 2 years (in ₹)?
2. 2.Find the compound interest on ₹20800 at 15% per year for 2 years, compounded every year (in ₹).
3. 3.A scooter is worth ₹5000. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
4. 4.Find the compound interest on ₹16400 at 8% per year for 1 year, compounded every year (in ₹).
5. 5.Find the compound interest on ₹30200 at 10% per year for 1 year, compounded every year (in ₹).
6. 6.What is the difference between the compound interest and the simple interest on ₹47500 at 4% per year for 2 years (in ₹)?
7. 7.A scooter is worth ₹16000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
8. 8.A town has 56000 people. The population grows by 5% every year. What will the population be after 3 years?
9. 9.A scooter is worth ₹16000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
10. 10.Find the compound interest on ₹52800 at 25% per year for 1 year, compounded every year (in ₹).
11. 11.Find the compound interest on ₹40000 at 15% per year for 3 years, compounded every year (in ₹).
12. 12.A town has 60000 people. The population grows by 8% every year. What will the population be after 2 years?
13. 13.What amount will ₹35900 grow to in 1 year at 20% per year compound interest (in ₹)?
14. 14.What amount will ₹33400 grow to in 1 year at 5% per year compound interest (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹52500 at 4% per year for 2 years (in ₹)?
16. 16.A scooter is worth ₹28800. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹22200 at 20% per year for 2 years (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹53600 at 25% per year for 2 years (in ₹)?
19. 19.A scooter is worth ₹32000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
20. 20.Find the compound interest on ₹31700 at 10% per year for 2 years, compounded every year (in ₹).
21. 21.Find the compound interest on ₹56000 at 5% per year for 3 years, compounded every year (in ₹).
22. 22.What amount will ₹38100 grow to in 1 year at 10% per year compound interest (in ₹)?
23. 23.Find the compound interest on ₹57600 at 25% per year for 3 years, compounded every year (in ₹).
24. 24.Find the compound interest on ₹24000 at 15% per year for 3 years, compounded every year (in ₹).
25. 25.Find the compound interest on ₹48400 at 25% per year for 1 year, compounded every year (in ₹).
26. 26.A scooter is worth ₹5200. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹26400 at 25% per year for 2 years (in ₹)?
28. 28.What amount will ₹18000 grow to in 1 year at 8% per year compound interest (in ₹)?
29. 29.A scooter is worth ₹23700. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
30. 30.What amount will ₹7000 grow to in 1 year at 15% per year compound interest (in ₹)?
31. 31.What amount will ₹32600 grow to in 1 year at 10% per year compound interest (in ₹)?
32. 32.What amount will ₹9800 grow to in 1 year at 5% per year compound interest (in ₹)?
33. 33.Find the compound interest on ₹47200 at 5% per year for 2 years, compounded every year (in ₹).
34. 34.What amount will ₹52200 grow to in 1 year at 10% per year compound interest (in ₹)?
35. 35.A scooter is worth ₹17400. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹56000 at 15% per year for 2 years (in ₹)?
37. 37.What amount will ₹32400 grow to in 2 years at 25% per year compound interest (in ₹)?
38. 38.Find the compound interest on ₹7200 at 15% per year for 1 year, compounded every year (in ₹).
39. 39.What is the difference between the compound interest and the simple interest on ₹32500 at 4% per year for 2 years (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹32400 at 25% per year for 2 years (in ₹)?

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