Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 774 · 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 is the difference between the compound interest and the simple interest on ₹56800 at 5% per year for 2 years (in ₹)?
2. 2.A town has 8000 people. The population grows by 5% every year. What will the population be after 3 years?
3. 3.What is the difference between the compound interest and the simple interest on ₹40800 at 25% per year for 2 years (in ₹)?
4. 4.A scooter is worth ₹7500. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
5. 5.What amount will ₹43200 grow to in 2 years at 5% per year compound interest (in ₹)?
6. 6.A scooter is worth ₹42500. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
7. 7.What amount will ₹20000 grow to in 2 years at 4% per year compound interest (in ₹)?
8. 8.Find the compound interest on ₹46300 at 10% per year for 2 years, compounded every year (in ₹).
9. 9.What amount will ₹8500 grow to in 1 year at 5% per year compound interest (in ₹)?
10. 10.Find the compound interest on ₹59600 at 20% per year for 2 years, compounded every year (in ₹).
11. 11.What is the difference between the compound interest and the simple interest on ₹48900 at 10% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹47600 at 25% per year for 1 year, compounded every year (in ₹).
13. 13.Find the compound interest on ₹51800 at 10% per year for 2 years, compounded every year (in ₹).
14. 14.What is the difference between the compound interest and the simple interest on ₹16400 at 25% per year for 2 years (in ₹)?
15. 15.Find the compound interest on ₹56000 at 5% per year for 3 years, compounded every year (in ₹).
16. 16.Find the compound interest on ₹16000 at 5% per year for 3 years, compounded every year (in ₹).
17. 17.Find the compound interest on ₹56000 at 15% per year for 3 years, compounded every year (in ₹).
18. 18.A scooter is worth ₹3400. Its value falls by 25% 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 ₹32800 at 5% per year for 2 years (in ₹)?
20. 20.Find the compound interest on ₹22300 at 20% per year for 2 years, compounded every year (in ₹).
21. 21.A town has 53700 people. The population grows by 15% every year. What will the population be after 1 year?
22. 22.A scooter is worth ₹18300. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
23. 23.What amount will ₹53400 grow to in 1 year at 20% per year compound interest (in ₹)?
24. 24.A scooter is worth ₹55300. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹22500 at 10% per year for 2 years (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹28900 at 10% per year for 2 years (in ₹)?
27. 27.What amount will ₹24500 grow to in 1 year at 20% per year compound interest (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹52100 at 20% per year for 2 years (in ₹)?
29. 29.A town has 35700 people. The population grows by 20% every year. What will the population be after 2 years?
30. 30.Find the compound interest on ₹58400 at 4% per year for 1 year, compounded every year (in ₹).
31. 31.A scooter is worth ₹12300. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
32. 32.A town has 48000 people. The population grows by 5% every year. What will the population be after 3 years?
33. 33.Find the compound interest on ₹6500 at 5% per year for 1 year, compounded every year (in ₹).
34. 34.Find the compound interest on ₹23600 at 25% per year for 2 years, compounded every year (in ₹).
35. 35.Find the compound interest on ₹45900 at 25% per year for 1 year, compounded every year (in ₹).
36. 36.Find the compound interest on ₹38300 at 12% per year for 1 year, compounded every year (in ₹).
37. 37.What amount will ₹47500 grow to in 2 years at 12% per year compound interest (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹15000 at 12% per year for 2 years (in ₹)?
39. 39.Find the compound interest on ₹20800 at 25% per year for 3 years, compounded every year (in ₹).
40. 40.What amount will ₹30400 grow to in 2 years at 25% per year compound interest (in ₹)?

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