Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 788 · 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 ₹32500 at 12% per year for 2 years (in ₹)?
2. 2.What amount will ₹54400 grow to in 2 years at 25% per year compound interest (in ₹)?
3. 3.Find the compound interest on ₹8000 at 10% per year for 2 years, compounded every year (in ₹).
4. 4.A scooter is worth ₹13500. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
5. 5.What amount will ₹59400 grow to in 1 year at 10% per year compound interest (in ₹)?
6. 6.Find the compound interest on ₹33600 at 25% per year for 3 years, compounded every year (in ₹).
7. 7.What is the difference between the compound interest and the simple interest on ₹25800 at 20% per year for 2 years (in ₹)?
8. 8.What is the difference between the compound interest and the simple interest on ₹50800 at 20% per year for 2 years (in ₹)?
9. 9.Find the compound interest on ₹40000 at 12% per year for 2 years, compounded every year (in ₹).
10. 10.Find the compound interest on ₹48400 at 10% per year for 1 year, compounded every year (in ₹).
11. 11.What amount will ₹56500 grow to in 1 year at 4% per year compound interest (in ₹)?
12. 12.What amount will ₹29600 grow to in 2 years at 25% per year compound interest (in ₹)?
13. 13.A town has 32500 people. The population grows by 12% every year. What will the population be after 2 years?
14. 14.Find the compound interest on ₹21800 at 20% per year for 1 year, compounded every year (in ₹).
15. 15.What amount will ₹39200 grow to in 2 years at 15% per year compound interest (in ₹)?
16. 16.Find the compound interest on ₹24300 at 8% per year for 1 year, compounded every year (in ₹).
17. 17.A town has 50300 people. The population grows by 10% every year. What will the population be after 2 years?
18. 18.What amount will ₹13700 grow to in 1 year at 5% per year compound interest (in ₹)?
19. 19.Find the compound interest on ₹39200 at 4% per year for 1 year, compounded every year (in ₹).
20. 20.What is the difference between the compound interest and the simple interest on ₹53600 at 25% per year for 2 years (in ₹)?
21. 21.What amount will ₹34900 grow to in 1 year at 15% per year compound interest (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹55000 at 12% per year for 2 years (in ₹)?
23. 23.Find the compound interest on ₹39000 at 20% per year for 3 years, compounded every year (in ₹).
24. 24.A town has 3100 people. The population grows by 8% every year. What will the population be after 1 year?
25. 25.Find the compound interest on ₹42400 at 12% per year for 1 year, compounded every year (in ₹).
26. 26.What amount will ₹50100 grow to in 2 years at 10% per year compound interest (in ₹)?
27. 27.Find the compound interest on ₹42700 at 8% per year for 1 year, compounded every year (in ₹).
28. 28.What is the difference between the compound interest and the simple interest on ₹2400 at 10% per year for 2 years (in ₹)?
29. 29.Find the compound interest on ₹28800 at 5% per year for 2 years, compounded every year (in ₹).
30. 30.Find the compound interest on ₹22500 at 8% per year for 2 years, compounded every year (in ₹).
31. 31.Find the compound interest on ₹9600 at 20% per year for 2 years, compounded every year (in ₹).
32. 32.Find the compound interest on ₹21000 at 4% per year for 1 year, compounded every year (in ₹).
33. 33.What is the difference between the compound interest and the simple interest on ₹25100 at 20% per year for 2 years (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹34000 at 25% per year for 2 years (in ₹)?
35. 35.A town has 32600 people. The population grows by 10% every year. What will the population be after 1 year?
36. 36.A scooter is worth ₹8700. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
37. 37.A town has 50800 people. The population grows by 5% every year. What will the population be after 2 years?
38. 38.Find the compound interest on ₹15100 at 25% per year for 1 year, compounded every year (in ₹).
39. 39.Find the compound interest on ₹3700 at 10% per year for 1 year, compounded every year (in ₹).
40. 40.Find the compound interest on ₹41400 at 8% per year for 1 year, compounded every year (in ₹).

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