Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 327 · 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 ₹27500 grow to in 2 years at 8% per year compound interest (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹20000 at 4% per year for 2 years (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹52100 at 10% per year for 2 years (in ₹)?
4. 4.Find the compound interest on ₹48000 at 5% per year for 3 years, compounded every year (in ₹).
5. 5.What is the difference between the compound interest and the simple interest on ₹16000 at 15% per year for 2 years (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹40800 at 15% per year for 2 years (in ₹)?
7. 7.Find the compound interest on ₹12700 at 20% per year for 1 year, compounded every year (in ₹).
8. 8.What is the difference between the compound interest and the simple interest on ₹47500 at 8% per year for 2 years (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹11700 at 10% per year for 2 years (in ₹)?
10. 10.Find the compound interest on ₹41600 at 5% per year for 1 year, compounded every year (in ₹).
11. 11.A scooter is worth ₹47700. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
12. 12.Find the compound interest on ₹33700 at 10% per year for 2 years, compounded every year (in ₹).
13. 13.A town has 52800 people. The population grows by 25% every year. What will the population be after 3 years?
14. 14.Find the compound interest on ₹55000 at 12% per year for 2 years, compounded every year (in ₹).
15. 15.What amount will ₹40000 grow to in 3 years at 5% per year compound interest (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹50000 at 12% per year for 2 years (in ₹)?
17. 17.What amount will ₹16300 grow to in 1 year at 12% per year compound interest (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹46800 at 25% per year for 2 years (in ₹)?
19. 19.Find the compound interest on ₹23900 at 10% per year for 1 year, compounded every year (in ₹).
20. 20.Find the compound interest on ₹23400 at 10% per year for 2 years, compounded every year (in ₹).
21. 21.A town has 59600 people. The population grows by 25% every year. What will the population be after 2 years?
22. 22.A scooter is worth ₹45000. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
23. 23.What amount will ₹26300 grow to in 1 year at 4% per year compound interest (in ₹)?
24. 24.Find the compound interest on ₹24300 at 4% per year for 1 year, compounded every year (in ₹).
25. 25.What amount will ₹17500 grow to in 1 year at 15% per year compound interest (in ₹)?
26. 26.Find the compound interest on ₹56000 at 10% per year for 3 years, compounded every year (in ₹).
27. 27.A scooter is worth ₹50000. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
28. 28.Find the compound interest on ₹32000 at 5% per year for 3 years, compounded every year (in ₹).
29. 29.A scooter is worth ₹54000. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
30. 30.Find the compound interest on ₹19200 at 25% per year for 3 years, compounded every year (in ₹).
31. 31.Find the compound interest on ₹55200 at 10% per year for 1 year, compounded every year (in ₹).
32. 32.Find the compound interest on ₹24000 at 15% per year for 3 years, compounded every year (in ₹).
33. 33.What is the difference between the compound interest and the simple interest on ₹59800 at 20% per year for 2 years (in ₹)?
34. 34.A town has 56000 people. The population grows by 5% every year. What will the population be after 3 years?
35. 35.A town has 24000 people. The population grows by 25% every year. What will the population be after 2 years?
36. 36.What amount will ₹59500 grow to in 3 years at 20% per year compound interest (in ₹)?
37. 37.A scooter is worth ₹3500. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹27500 at 4% per year for 2 years (in ₹)?
39. 39.Find the compound interest on ₹42800 at 8% per year for 1 year, compounded every year (in ₹).
40. 40.What is the difference between the compound interest and the simple interest on ₹38000 at 5% per year for 2 years (in ₹)?

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