Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 562 · 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 ₹26400 at 12% per year for 1 year, compounded every year (in ₹).
2. 2.What is the difference between the compound interest and the simple interest on ₹23200 at 5% per year for 2 years (in ₹)?
3. 3.What amount will ₹16300 grow to in 1 year at 4% per year compound interest (in ₹)?
4. 4.A scooter is worth ₹30500. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
5. 5.Find the compound interest on ₹36800 at 5% per year for 2 years, compounded every year (in ₹).
6. 6.What is the difference between the compound interest and the simple interest on ₹23400 at 20% per year for 2 years (in ₹)?
7. 7.What amount will ₹26500 grow to in 1 year at 12% per year compound interest (in ₹)?
8. 8.What amount will ₹57900 grow to in 1 year at 5% per year compound interest (in ₹)?
9. 9.What amount will ₹12700 grow to in 2 years at 10% per year compound interest (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹54400 at 25% per year for 2 years (in ₹)?
11. 11.Find the compound interest on ₹47400 at 4% per year for 1 year, compounded every year (in ₹).
12. 12.What is the difference between the compound interest and the simple interest on ₹4800 at 15% per year for 2 years (in ₹)?
13. 13.What amount will ₹15300 grow to in 1 year at 10% per year compound interest (in ₹)?
14. 14.Find the compound interest on ₹52000 at 15% per year for 1 year, compounded every year (in ₹).
15. 15.What is the difference between the compound interest and the simple interest on ₹50400 at 5% per year for 2 years (in ₹)?
16. 16.Find the compound interest on ₹16400 at 5% per year for 1 year, compounded every year (in ₹).
17. 17.What is the difference between the compound interest and the simple interest on ₹8000 at 10% per year for 2 years (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹47500 at 12% per year for 2 years (in ₹)?
19. 19.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).
20. 20.What is the difference between the compound interest and the simple interest on ₹7500 at 8% per year for 2 years (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹39200 at 5% per year for 2 years (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹17500 at 12% per year for 2 years (in ₹)?
23. 23.A scooter is worth ₹4600. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹38400 at 15% per year for 2 years (in ₹)?
25. 25.Find the compound interest on ₹21200 at 25% per year for 1 year, compounded every year (in ₹).
26. 26.What amount will ₹2400 grow to in 1 year at 10% per year compound interest (in ₹)?
27. 27.Find the compound interest on ₹22400 at 10% per year for 1 year, compounded every year (in ₹).
28. 28.Find the compound interest on ₹52600 at 4% per year for 1 year, compounded every year (in ₹).
29. 29.What is the difference between the compound interest and the simple interest on ₹10000 at 8% per year for 2 years (in ₹)?
30. 30.Find the compound interest on ₹41600 at 25% per year for 3 years, compounded every year (in ₹).
31. 31.What amount will ₹2100 grow to in 2 years at 10% per year compound interest (in ₹)?
32. 32.Find the compound interest on ₹32000 at 25% per year for 3 years, compounded every year (in ₹).
33. 33.What amount will ₹33000 grow to in 3 years at 10% per year compound interest (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹16400 at 15% per year for 2 years (in ₹)?
35. 35.A scooter is worth ₹26500. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
36. 36.What amount will ₹28900 grow to in 1 year at 10% per year compound interest (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹2500 at 4% per year for 2 years (in ₹)?
38. 38.What amount will ₹59100 grow to in 1 year at 20% per year compound interest (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹51700 at 20% per year for 2 years (in ₹)?
40. 40.A town has 27000 people. The population grows by 10% every year. What will the population be after 3 years?

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