Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 925 · 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 ₹49500 at 4% per year for 1 year, compounded every year (in ₹).
2. 2.A town has 16000 people. The population grows by 5% every year. What will the population be after 3 years?
3. 3.What amount will ₹30000 grow to in 2 years at 8% per year compound interest (in ₹)?
4. 4.What amount will ₹47500 grow to in 2 years at 4% per year compound interest (in ₹)?
5. 5.What amount will ₹40000 grow to in 3 years at 15% per year compound interest (in ₹)?
6. 6.Find the compound interest on ₹6500 at 12% per year for 1 year, compounded every year (in ₹).
7. 7.Find the compound interest on ₹55000 at 4% per year for 2 years, compounded every year (in ₹).
8. 8.Find the compound interest on ₹43200 at 25% per year for 3 years, compounded every year (in ₹).
9. 9.A town has 50000 people. The population grows by 12% every year. What will the population be after 2 years?
10. 10.What is the difference between the compound interest and the simple interest on ₹54000 at 25% per year for 2 years (in ₹)?
11. 11.Find the compound interest on ₹8500 at 5% per year for 1 year, compounded every year (in ₹).
12. 12.What is the difference between the compound interest and the simple interest on ₹17600 at 5% per year for 2 years (in ₹)?
13. 13.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
14. 14.What amount will ₹40000 grow to in 2 years at 4% per year compound interest (in ₹)?
15. 15.Find the compound interest on ₹19800 at 25% per year for 1 year, compounded every year (in ₹).
16. 16.A town has 11400 people. The population grows by 25% every year. What will the population be after 1 year?
17. 17.What amount will ₹37000 grow to in 1 year at 4% per year compound interest (in ₹)?
18. 18.What amount will ₹22500 grow to in 2 years at 12% per year compound interest (in ₹)?
19. 19.What amount will ₹23000 grow to in 2 years at 20% per year compound interest (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹40000 at 12% per year for 2 years (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹12000 at 10% per year for 2 years (in ₹)?
22. 22.What amount will ₹5200 grow to in 1 year at 12% per year compound interest (in ₹)?
23. 23.Find the compound interest on ₹17800 at 20% per year for 2 years, compounded every year (in ₹).
24. 24.What amount will ₹40000 grow to in 2 years at 5% per year compound interest (in ₹)?
25. 25.Find the compound interest on ₹29600 at 4% per year for 1 year, compounded every year (in ₹).
26. 26.What is the difference between the compound interest and the simple interest on ₹12000 at 25% per year for 2 years (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹15000 at 4% per year for 2 years (in ₹)?
28. 28.Find the compound interest on ₹52500 at 8% per year for 2 years, compounded every year (in ₹).
29. 29.What amount will ₹8000 grow to in 3 years at 15% per year compound interest (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹47500 at 8% per year for 2 years (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹13600 at 10% per year for 2 years (in ₹)?
32. 32.What amount will ₹38200 grow to in 2 years at 10% per year compound interest (in ₹)?
33. 33.Find the compound interest on ₹38200 at 8% per year for 1 year, compounded every year (in ₹).
34. 34.Find the compound interest on ₹7200 at 15% per year for 2 years, compounded every year (in ₹).
35. 35.What is the difference between the compound interest and the simple interest on ₹27600 at 10% per year for 2 years (in ₹)?
36. 36.Find the compound interest on ₹13500 at 20% per year for 3 years, compounded every year (in ₹).
37. 37.What amount will ₹41600 grow to in 2 years at 25% per year compound interest (in ₹)?
38. 38.What amount will ₹15900 grow to in 1 year at 12% per year compound interest (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹34400 at 5% per year for 2 years (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹2500 at 8% per year for 2 years (in ₹)?

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