Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 244 · 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.Find the compound interest on ₹49600 at 25% per year for 3 years, compounded every year (in ₹).
2. 2.Find the compound interest on ₹30400 at 10% per year for 1 year, compounded every year (in ₹).
3. 3.Find the compound interest on ₹42500 at 12% per year for 2 years, compounded every year (in ₹).
4. 4.What amount will ₹12500 grow to in 3 years at 20% per year compound interest (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹47500 at 4% per year for 2 years (in ₹)?
6. 6.Find the compound interest on ₹55500 at 20% per year for 3 years, compounded every year (in ₹).
7. 7.What amount will ₹37500 grow to in 2 years at 8% per year compound interest (in ₹)?
8. 8.What amount will ₹21400 grow to in 1 year at 25% per year compound interest (in ₹)?
9. 9.Find the compound interest on ₹28100 at 20% per year for 2 years, compounded every year (in ₹).
10. 10.What amount will ₹28000 grow to in 3 years at 10% per year compound interest (in ₹)?
11. 11.Find the compound interest on ₹56000 at 15% per year for 3 years, compounded every year (in ₹).
12. 12.What amount will ₹44800 grow to in 3 years at 25% per year compound interest (in ₹)?
13. 13.Find the compound interest on ₹23600 at 8% per year for 1 year, compounded every year (in ₹).
14. 14.What is the difference between the compound interest and the simple interest on ₹3400 at 20% per year for 2 years (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹45200 at 5% per year for 2 years (in ₹)?
16. 16.What amount will ₹55000 grow to in 2 years at 4% per year compound interest (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹25600 at 15% per year for 2 years (in ₹)?
18. 18.Find the compound interest on ₹40000 at 15% per year for 3 years, compounded every year (in ₹).
19. 19.Find the compound interest on ₹15000 at 4% per year for 2 years, compounded every year (in ₹).
20. 20.A scooter is worth ₹8000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹32500 at 4% per year for 2 years (in ₹)?
22. 22.A scooter is worth ₹35900. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
23. 23.What amount will ₹52500 grow to in 1 year at 20% per year compound interest (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹34400 at 5% per year for 2 years (in ₹)?
25. 25.What amount will ₹55300 grow to in 1 year at 8% per year compound interest (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹22500 at 12% per year for 2 years (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹29200 at 5% per year for 2 years (in ₹)?
28. 28.A scooter is worth ₹14700. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
29. 29.What amount will ₹13200 grow to in 2 years at 5% per year compound interest (in ₹)?
30. 30.A scooter is worth ₹11900. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹51200 at 25% per year for 2 years (in ₹)?
32. 32.What amount will ₹35800 grow to in 1 year at 15% per year compound interest (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹49700 at 20% per year for 2 years (in ₹)?
34. 34.Find the compound interest on ₹57500 at 12% per year for 2 years, compounded every year (in ₹).
35. 35.Find the compound interest on ₹45000 at 4% per year for 1 year, compounded every year (in ₹).
36. 36.What amount will ₹8000 grow to in 3 years at 15% per year compound interest (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹45000 at 10% per year for 2 years (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹37600 at 25% per year for 2 years (in ₹)?
39. 39.Find the compound interest on ₹19000 at 10% per year for 3 years, compounded every year (in ₹).
40. 40.What is the difference between the compound interest and the simple interest on ₹27200 at 5% per year for 2 years (in ₹)?

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