Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 619 · 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 amount will ₹59200 grow to in 3 years at 25% per year compound interest (in ₹)?
2. 2.Find the compound interest on ₹12500 at 8% per year for 2 years, compounded every year (in ₹).
3. 3.What is the difference between the compound interest and the simple interest on ₹31600 at 25% per year for 2 years (in ₹)?
4. 4.A town has 17800 people. The population grows by 20% every year. What will the population be after 2 years?
5. 5.A town has 42000 people. The population grows by 20% every year. What will the population be after 2 years?
6. 6.What is the difference between the compound interest and the simple interest on ₹9600 at 15% per year for 2 years (in ₹)?
7. 7.Find the compound interest on ₹11500 at 20% per year for 3 years, compounded every year (in ₹).
8. 8.A scooter is worth ₹25000. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹15000 at 10% per year for 2 years (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹46800 at 25% per year for 2 years (in ₹)?
11. 11.Find the compound interest on ₹13400 at 20% per year for 2 years, compounded every year (in ₹).
12. 12.Find the compound interest on ₹15000 at 8% per year for 2 years, compounded every year (in ₹).
13. 13.What amount will ₹35000 grow to in 3 years at 10% per year compound interest (in ₹)?
14. 14.What amount will ₹56000 grow to in 3 years at 15% per year compound interest (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹10000 at 25% per year for 2 years (in ₹)?
16. 16.What amount will ₹47500 grow to in 2 years at 8% per year compound interest (in ₹)?
17. 17.What amount will ₹56800 grow to in 2 years at 10% per year compound interest (in ₹)?
18. 18.Find the compound interest on ₹11200 at 15% per year for 2 years, compounded every year (in ₹).
19. 19.What amount will ₹56000 grow to in 3 years at 5% per year compound interest (in ₹)?
20. 20.Find the compound interest on ₹5000 at 4% per year for 2 years, compounded every year (in ₹).
21. 21.A scooter is worth ₹10200. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
22. 22.Find the compound interest on ₹33600 at 25% per year for 3 years, compounded every year (in ₹).
23. 23.Find the compound interest on ₹20000 at 10% per year for 3 years, compounded every year (in ₹).
24. 24.What is the difference between the compound interest and the simple interest on ₹47500 at 8% per year for 2 years (in ₹)?
25. 25.What amount will ₹7500 grow to in 2 years at 4% per year compound interest (in ₹)?
26. 26.What amount will ₹25100 grow to in 1 year at 8% per year compound interest (in ₹)?
27. 27.What amount will ₹56000 grow to in 3 years at 25% per year compound interest (in ₹)?
28. 28.A scooter is worth ₹23200. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
29. 29.Find the compound interest on ₹48000 at 15% per year for 3 years, compounded every year (in ₹).
30. 30.A scooter is worth ₹44800. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
31. 31.Find the compound interest on ₹33900 at 10% per year for 1 year, compounded every year (in ₹).
32. 32.What is the difference between the compound interest and the simple interest on ₹6400 at 25% per year for 2 years (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹14000 at 5% per year for 2 years (in ₹)?
34. 34.What amount will ₹27200 grow to in 1 year at 20% per year compound interest (in ₹)?
35. 35.What amount will ₹42800 grow to in 2 years at 5% per year compound interest (in ₹)?
36. 36.Find the compound interest on ₹26000 at 10% per year for 3 years, compounded every year (in ₹).
37. 37.What amount will ₹37500 grow to in 2 years at 8% per year compound interest (in ₹)?
38. 38.What amount will ₹29600 grow to in 1 year at 4% per year compound interest (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹42400 at 25% per year for 2 years (in ₹)?
40. 40.Find the compound interest on ₹49500 at 10% per year for 1 year, compounded every year (in ₹).

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