Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 246 · 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 ₹40000 at 5% per year for 3 years, compounded every year (in ₹).
2. 2.What is the difference between the compound interest and the simple interest on ₹12400 at 15% per year for 2 years (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹47200 at 20% per year for 2 years (in ₹)?
4. 4.Find the compound interest on ₹25600 at 15% per year for 2 years, compounded every year (in ₹).
5. 5.Find the compound interest on ₹35000 at 8% per year for 2 years, compounded every year (in ₹).
6. 6.A town has 24000 people. The population grows by 5% every year. What will the population be after 2 years?
7. 7.Find the compound interest on ₹54800 at 15% per year for 2 years, compounded every year (in ₹).
8. 8.What amount will ₹40000 grow to in 3 years at 15% per year compound interest (in ₹)?
9. 9.What amount will ₹27500 grow to in 2 years at 12% per year compound interest (in ₹)?
10. 10.What amount will ₹60000 grow to in 2 years at 8% per year compound interest (in ₹)?
11. 11.A scooter is worth ₹15500. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
12. 12.What amount will ₹57300 grow to in 1 year at 12% per year compound interest (in ₹)?
13. 13.Find the compound interest on ₹39300 at 20% per year for 1 year, compounded every year (in ₹).
14. 14.What amount will ₹47400 grow to in 1 year at 20% per year compound interest (in ₹)?
15. 15.Find the compound interest on ₹4000 at 10% per year for 3 years, compounded every year (in ₹).
16. 16.What amount will ₹56000 grow to in 3 years at 5% per year compound interest (in ₹)?
17. 17.Find the compound interest on ₹53800 at 15% per year for 1 year, compounded every year (in ₹).
18. 18.A scooter is worth ₹32700. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹36500 at 20% per year for 2 years (in ₹)?
20. 20.What amount will ₹24000 grow to in 3 years at 15% per year compound interest (in ₹)?
21. 21.Find the compound interest on ₹3600 at 5% per year for 1 year, compounded every year (in ₹).
22. 22.What is the difference between the compound interest and the simple interest on ₹32700 at 10% per year for 2 years (in ₹)?
23. 23.What amount will ₹49400 grow to in 2 years at 10% per year compound interest (in ₹)?
24. 24.What amount will ₹17000 grow to in 3 years at 10% per year compound interest (in ₹)?
25. 25.What amount will ₹58500 grow to in 1 year at 20% per year compound interest (in ₹)?
26. 26.A scooter is worth ₹52800. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
27. 27.Find the compound interest on ₹2500 at 8% per year for 1 year, compounded every year (in ₹).
28. 28.What is the difference between the compound interest and the simple interest on ₹4400 at 25% per year for 2 years (in ₹)?
29. 29.Find the compound interest on ₹46700 at 15% per year for 1 year, compounded every year (in ₹).
30. 30.A scooter is worth ₹13200. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
31. 31.Find the compound interest on ₹50000 at 12% per year for 2 years, compounded every year (in ₹).
32. 32.Find the compound interest on ₹48000 at 15% per year for 3 years, compounded every year (in ₹).
33. 33.Find the compound interest on ₹28800 at 25% per year for 3 years, compounded every year (in ₹).
34. 34.Find the compound interest on ₹11600 at 25% per year for 1 year, compounded every year (in ₹).
35. 35.Find the compound interest on ₹30000 at 8% per year for 2 years, compounded every year (in ₹).
36. 36.What is the difference between the compound interest and the simple interest on ₹34800 at 25% per year for 2 years (in ₹)?
37. 37.What amount will ₹11400 grow to in 1 year at 8% per year compound interest (in ₹)?
38. 38.Find the compound interest on ₹45000 at 10% per year for 3 years, compounded every year (in ₹).
39. 39.What amount will ₹41000 grow to in 1 year at 15% per year compound interest (in ₹)?
40. 40.A scooter is worth ₹48000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?

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