Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 643 · 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 amount will ₹37600 grow to in 2 years at 10% per year compound interest (in ₹)?
2. 2.A town has 13600 people. The population grows by 5% every year. What will the population be after 2 years?
3. 3.What amount will ₹34800 grow to in 1 year at 12% per year compound interest (in ₹)?
4. 4.Find the compound interest on ₹2800 at 25% per year for 2 years, compounded every year (in ₹).
5. 5.Find the compound interest on ₹22100 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 ₹30000 at 8% per year for 2 years (in ₹)?
7. 7.A scooter is worth ₹7800. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
8. 8.Find the compound interest on ₹28700 at 12% per year for 1 year, compounded every year (in ₹).
9. 9.Find the compound interest on ₹10000 at 4% per year for 2 years, compounded every year (in ₹).
10. 10.What amount will ₹10500 grow to in 2 years at 10% per year compound interest (in ₹)?
11. 11.A scooter is worth ₹30900. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
12. 12.What is the difference between the compound interest and the simple interest on ₹34500 at 20% per year for 2 years (in ₹)?
13. 13.What amount will ₹33500 grow to in 3 years at 20% per year compound interest (in ₹)?
14. 14.What amount will ₹49700 grow to in 2 years at 20% per year compound interest (in ₹)?
15. 15.Find the compound interest on ₹60000 at 15% per year for 2 years, compounded every year (in ₹).
16. 16.What is the difference between the compound interest and the simple interest on ₹7500 at 12% per year for 2 years (in ₹)?
17. 17.What amount will ₹13900 grow to in 2 years at 10% per year compound interest (in ₹)?
18. 18.What amount will ₹42500 grow to in 2 years at 8% per year compound interest (in ₹)?
19. 19.A scooter is worth ₹50200. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
20. 20.Find the compound interest on ₹11700 at 10% per year for 1 year, compounded every year (in ₹).
21. 21.What is the difference between the compound interest and the simple interest on ₹46800 at 25% per year for 2 years (in ₹)?
22. 22.A town has 14700 people. The population grows by 20% every year. What will the population be after 2 years?
23. 23.Find the compound interest on ₹35100 at 12% per year for 1 year, compounded every year (in ₹).
24. 24.A town has 26800 people. The population grows by 25% every year. What will the population be after 2 years?
25. 25.Find the compound interest on ₹34200 at 12% per year for 1 year, compounded every year (in ₹).
26. 26.A scooter is worth ₹9200. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹51600 at 5% per year for 2 years (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹17600 at 15% per year for 2 years (in ₹)?
29. 29.What amount will ₹45500 grow to in 1 year at 4% per year compound interest (in ₹)?
30. 30.Find the compound interest on ₹54000 at 25% per year for 2 years, compounded every year (in ₹).
31. 31.Find the compound interest on ₹9600 at 25% per year for 3 years, compounded every year (in ₹).
32. 32.What is the difference between the compound interest and the simple interest on ₹45000 at 8% per year for 2 years (in ₹)?
33. 33.What amount will ₹38100 grow to in 2 years at 10% per year compound interest (in ₹)?
34. 34.What amount will ₹9400 grow to in 2 years at 20% per year compound interest (in ₹)?
35. 35.A town has 48800 people. The population grows by 25% every year. What will the population be after 1 year?
36. 36.What amount will ₹58400 grow to in 2 years at 5% per year compound interest (in ₹)?
37. 37.Find the compound interest on ₹2500 at 12% per year for 2 years, compounded every year (in ₹).
38. 38.Find the compound interest on ₹50200 at 12% per year for 1 year, compounded every year (in ₹).
39. 39.What is the difference between the compound interest and the simple interest on ₹43200 at 25% per year for 2 years (in ₹)?
40. 40.Find the compound interest on ₹45200 at 15% per year for 2 years, compounded every year (in ₹).

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