Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 357 · 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 ₹28800 at 5% per year for 2 years (in ₹)?
2. 2.A scooter is worth ₹56800. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
3. 3.Find the compound interest on ₹8800 at 10% per year for 1 year, compounded every year (in ₹).
4. 4.A scooter is worth ₹40500. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
5. 5.What amount will ₹11500 grow to in 1 year at 15% per year compound interest (in ₹)?
6. 6.What amount will ₹24500 grow to in 1 year at 10% per year compound interest (in ₹)?
7. 7.Find the compound interest on ₹5000 at 12% per year for 2 years, compounded every year (in ₹).
8. 8.Find the compound interest on ₹14500 at 10% per year for 2 years, compounded every year (in ₹).
9. 9.Find the compound interest on ₹47200 at 15% per year for 2 years, compounded every year (in ₹).
10. 10.A town has 4400 people. The population grows by 25% every year. What will the population be after 2 years?
11. 11.What is the difference between the compound interest and the simple interest on ₹6200 at 10% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹56700 at 15% per year for 1 year, compounded every year (in ₹).
13. 13.Find the compound interest on ₹18300 at 4% per year for 1 year, compounded every year (in ₹).
14. 14.What amount will ₹39200 grow to in 2 years at 25% per year compound interest (in ₹)?
15. 15.What amount will ₹49000 grow to in 3 years at 10% per year compound interest (in ₹)?
16. 16.Find the compound interest on ₹27500 at 12% per year for 2 years, compounded every year (in ₹).
17. 17.What amount will ₹46100 grow to in 1 year at 12% per year compound interest (in ₹)?
18. 18.Find the compound interest on ₹24000 at 15% per year for 3 years, compounded every year (in ₹).
19. 19.What amount will ₹16900 grow to in 1 year at 4% per year compound interest (in ₹)?
20. 20.A scooter is worth ₹39000. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹48100 at 10% per year for 2 years (in ₹)?
22. 22.A scooter is worth ₹24200. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹22500 at 8% per year for 2 years (in ₹)?
24. 24.Find the compound interest on ₹48400 at 15% per year for 1 year, compounded every year (in ₹).
25. 25.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?
26. 26.A town has 24400 people. The population grows by 15% every year. What will the population be after 2 years?
27. 27.Find the compound interest on ₹4000 at 10% per year for 3 years, compounded every year (in ₹).
28. 28.What is the difference between the compound interest and the simple interest on ₹2800 at 5% per year for 2 years (in ₹)?
29. 29.What amount will ₹7500 grow to in 2 years at 4% per year compound interest (in ₹)?
30. 30.What amount will ₹39000 grow to in 1 year at 4% per year compound interest (in ₹)?
31. 31.Find the compound interest on ₹35700 at 4% per year for 1 year, compounded every year (in ₹).
32. 32.A scooter is worth ₹27500. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
33. 33.A town has 48000 people. The population grows by 25% every year. What will the population be after 3 years?
34. 34.What amount will ₹34000 grow to in 2 years at 25% per year compound interest (in ₹)?
35. 35.What amount will ₹30000 grow to in 2 years at 5% per year compound interest (in ₹)?
36. 36.Find the compound interest on ₹27600 at 8% per year for 1 year, compounded every year (in ₹).
37. 37.What amount will ₹3600 grow to in 2 years at 5% per year compound interest (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹25200 at 15% per year for 2 years (in ₹)?
39. 39.What amount will ₹56700 grow to in 2 years at 20% per year compound interest (in ₹)?
40. 40.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).

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