Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 92 · 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 ₹42500 at 4% per year for 2 years, compounded every year (in ₹).
2. 2.What amount will ₹26100 grow to in 2 years at 10% per year compound interest (in ₹)?
3. 3.Find the compound interest on ₹27200 at 5% per year for 1 year, compounded every year (in ₹).
4. 4.Find the compound interest on ₹13300 at 4% per year for 1 year, compounded every year (in ₹).
5. 5.What is the difference between the compound interest and the simple interest on ₹5000 at 4% per year for 2 years (in ₹)?
6. 6.What amount will ₹49800 grow to in 2 years at 10% per year compound interest (in ₹)?
7. 7.What amount will ₹12500 grow to in 2 years at 8% per year compound interest (in ₹)?
8. 8.What amount will ₹17100 grow to in 1 year at 5% per year compound interest (in ₹)?
9. 9.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
10. 10.What amount will ₹48800 grow to in 2 years at 15% per year compound interest (in ₹)?
11. 11.What is the difference between the compound interest and the simple interest on ₹7500 at 4% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹51600 at 5% per year for 2 years, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹29600 at 15% per year for 2 years (in ₹)?
14. 14.Find the compound interest on ₹33000 at 20% per year for 3 years, compounded every year (in ₹).
15. 15.Find the compound interest on ₹57300 at 10% per year for 1 year, compounded every year (in ₹).
16. 16.What is the difference between the compound interest and the simple interest on ₹42000 at 25% per year for 2 years (in ₹)?
17. 17.A town has 3200 people. The population grows by 25% every year. What will the population be after 3 years?
18. 18.What amount will ₹17500 grow to in 2 years at 4% per year compound interest (in ₹)?
19. 19.Find the compound interest on ₹34500 at 12% per year for 1 year, compounded every year (in ₹).
20. 20.What is the difference between the compound interest and the simple interest on ₹23100 at 10% per year for 2 years (in ₹)?
21. 21.Find the compound interest on ₹26900 at 20% per year for 2 years, compounded every year (in ₹).
22. 22.What amount will ₹47000 grow to in 3 years at 20% per year compound interest (in ₹)?
23. 23.What amount will ₹37600 grow to in 1 year at 8% per year compound interest (in ₹)?
24. 24.What amount will ₹57600 grow to in 3 years at 25% per year compound interest (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹43200 at 15% per year for 2 years (in ₹)?
26. 26.Find the compound interest on ₹22000 at 10% per year for 3 years, compounded every year (in ₹).
27. 27.A town has 40000 people. The population grows by 8% every year. What will the population be after 2 years?
28. 28.What amount will ₹26400 grow to in 1 year at 20% per year compound interest (in ₹)?
29. 29.Find the compound interest on ₹7100 at 12% per year for 1 year, compounded every year (in ₹).
30. 30.Find the compound interest on ₹46800 at 15% per year for 2 years, compounded every year (in ₹).
31. 31.What amount will ₹3400 grow to in 2 years at 20% per year compound interest (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 ₹24300 at 10% per year for 1 year, compounded every year (in ₹).
34. 34.Find the compound interest on ₹13400 at 5% per year for 1 year, compounded every year (in ₹).
35. 35.What is the difference between the compound interest and the simple interest on ₹45000 at 4% per year for 2 years (in ₹)?
36. 36.A town has 9200 people. The population grows by 12% every year. What will the population be after 1 year?
37. 37.Find the compound interest on ₹56000 at 15% per year for 3 years, compounded every year (in ₹).
38. 38.Find the compound interest on ₹56000 at 5% per year for 3 years, compounded every year (in ₹).
39. 39.What is the difference between the compound interest and the simple interest on ₹60000 at 25% per year for 2 years (in ₹)?
40. 40.What amount will ₹6000 grow to in 3 years at 10% per year compound interest (in ₹)?

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