Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 644 · 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 ₹33600 grow to in 2 years at 5% per year compound interest (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹34500 at 20% per year for 2 years (in ₹)?
3. 3.Find the compound interest on ₹29700 at 20% per year for 2 years, compounded every year (in ₹).
4. 4.Find the compound interest on ₹17500 at 12% per year for 2 years, compounded every year (in ₹).
5. 5.What is the difference between the compound interest and the simple interest on ₹14000 at 10% per year for 2 years (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹6800 at 15% per year for 2 years (in ₹)?
7. 7.Find the compound interest on ₹10900 at 8% per year for 1 year, compounded every year (in ₹).
8. 8.What is the difference between the compound interest and the simple interest on ₹24200 at 20% per year for 2 years (in ₹)?
9. 9.Find the compound interest on ₹45200 at 15% per year for 1 year, compounded every year (in ₹).
10. 10.What is the difference between the compound interest and the simple interest on ₹11700 at 10% per year for 2 years (in ₹)?
11. 11.What amount will ₹25000 grow to in 2 years at 12% per year compound interest (in ₹)?
12. 12.What is the difference between the compound interest and the simple interest on ₹45000 at 12% per year for 2 years (in ₹)?
13. 13.A scooter is worth ₹35500. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹20900 at 10% per year for 2 years (in ₹)?
15. 15.A scooter is worth ₹52200. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
16. 16.What amount will ₹50000 grow to in 2 years at 10% per year compound interest (in ₹)?
17. 17.Find the compound interest on ₹58000 at 4% per year for 1 year, compounded every year (in ₹).
18. 18.What is the difference between the compound interest and the simple interest on ₹45000 at 8% per year for 2 years (in ₹)?
19. 19.Find the compound interest on ₹52500 at 8% per year for 2 years, compounded every year (in ₹).
20. 20.A scooter is worth ₹12000. Its value falls by 10% 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 ₹58400 at 5% per year for 2 years (in ₹)?
22. 22.Find the compound interest on ₹30800 at 8% per year for 1 year, compounded every year (in ₹).
23. 23.A town has 10000 people. The population grows by 12% every year. What will the population be after 2 years?
24. 24.What amount will ₹41700 grow to in 2 years at 10% per year compound interest (in ₹)?
25. 25.A scooter is worth ₹23900. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
26. 26.A town has 31600 people. The population grows by 20% every year. What will the population be after 2 years?
27. 27.Find the compound interest on ₹48000 at 15% per year for 3 years, compounded every year (in ₹).
28. 28.What is the difference between the compound interest and the simple interest on ₹30000 at 4% per year for 2 years (in ₹)?
29. 29.What amount will ₹32000 grow to in 3 years at 15% per year compound interest (in ₹)?
30. 30.Find the compound interest on ₹21100 at 25% per year for 1 year, compounded every year (in ₹).
31. 31.Find the compound interest on ₹54100 at 10% per year for 1 year, compounded every year (in ₹).
32. 32.Find the compound interest on ₹32000 at 5% per year for 3 years, compounded every year (in ₹).
33. 33.A town has 40000 people. The population grows by 5% every year. What will the population be after 3 years?
34. 34.What is the difference between the compound interest and the simple interest on ₹37600 at 25% per year for 2 years (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹40000 at 5% per year for 2 years (in ₹)?
36. 36.A town has 37500 people. The population grows by 12% every year. What will the population be after 2 years?
37. 37.What is the difference between the compound interest and the simple interest on ₹15000 at 8% per year for 2 years (in ₹)?
38. 38.Find the compound interest on ₹15600 at 10% per year for 2 years, compounded every year (in ₹).
39. 39.Find the compound interest on ₹17500 at 4% per year for 2 years, compounded every year (in ₹).
40. 40.Find the compound interest on ₹47500 at 8% per year for 2 years, compounded every year (in ₹).

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