Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 952 · 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 ₹44000 at 15% per year for 2 years (in ₹)?
2. 2.A scooter is worth ₹8000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹32500 at 8% per year for 2 years (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹56800 at 15% per year for 2 years (in ₹)?
5. 5.Find the compound interest on ₹19100 at 12% per year for 1 year, compounded every year (in ₹).
6. 6.What is the difference between the compound interest and the simple interest on ₹20400 at 25% per year for 2 years (in ₹)?
7. 7.What amount will ₹28600 grow to in 1 year at 10% per year compound interest (in ₹)?
8. 8.Find the compound interest on ₹26100 at 20% per year for 2 years, compounded every year (in ₹).
9. 9.What is the difference between the compound interest and the simple interest on ₹30000 at 12% per year for 2 years (in ₹)?
10. 10.What amount will ₹9900 grow to in 1 year at 15% per year compound interest (in ₹)?
11. 11.Find the compound interest on ₹47500 at 12% per year for 2 years, compounded every year (in ₹).
12. 12.What amount will ₹10000 grow to in 2 years at 12% per year compound interest (in ₹)?
13. 13.Find the compound interest on ₹34400 at 25% per year for 2 years, compounded every year (in ₹).
14. 14.What amount will ₹42000 grow to in 3 years at 10% per year compound interest (in ₹)?
15. 15.A town has 57900 people. The population grows by 4% every year. What will the population be after 1 year?
16. 16.What amount will ₹7500 grow to in 2 years at 12% per year compound interest (in ₹)?
17. 17.Find the compound interest on ₹8000 at 25% per year for 3 years, compounded every year (in ₹).
18. 18.What amount will ₹57700 grow to in 1 year at 10% per year compound interest (in ₹)?
19. 19.Find the compound interest on ₹17500 at 4% per year for 2 years, compounded every year (in ₹).
20. 20.A scooter is worth ₹45000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
21. 21.A town has 24000 people. The population grows by 5% every year. What will the population be after 3 years?
22. 22.Find the compound interest on ₹34200 at 8% per year for 1 year, compounded every year (in ₹).
23. 23.A town has 2600 people. The population grows by 4% every year. What will the population be after 1 year?
24. 24.Find the compound interest on ₹41900 at 5% per year for 1 year, compounded every year (in ₹).
25. 25.What amount will ₹5000 grow to in 2 years at 8% per year compound interest (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹12000 at 15% per year for 2 years (in ₹)?
27. 27.What amount will ₹56400 grow to in 2 years at 5% per year compound interest (in ₹)?
28. 28.Find the compound interest on ₹49000 at 10% per year for 3 years, compounded every year (in ₹).
29. 29.Find the compound interest on ₹19500 at 10% per year for 2 years, compounded every year (in ₹).
30. 30.What is the difference between the compound interest and the simple interest on ₹5000 at 4% per year for 2 years (in ₹)?
31. 31.A town has 35000 people. The population grows by 12% every year. What will the population be after 2 years?
32. 32.A town has 32000 people. The population grows by 15% every year. What will the population be after 3 years?
33. 33.What is the difference between the compound interest and the simple interest on ₹42500 at 4% per year for 2 years (in ₹)?
34. 34.Find the compound interest on ₹23800 at 10% 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 15% per year for 2 years (in ₹)?
36. 36.What amount will ₹50400 grow to in 2 years at 10% per year compound interest (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹57600 at 15% per year for 2 years (in ₹)?
38. 38.What amount will ₹30000 grow to in 2 years at 15% per year compound interest (in ₹)?
39. 39.A town has 36800 people. The population grows by 15% every year. What will the population be after 1 year?
40. 40.Find the compound interest on ₹25100 at 10% per year for 1 year, compounded every year (in ₹).

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