Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 672 · 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 ₹5000 at 8% per year for 2 years (in ₹)?
2. 2.What amount will ₹12000 grow to in 2 years at 5% per year compound interest (in ₹)?
3. 3.Find the compound interest on ₹51200 at 25% per year for 2 years, compounded every year (in ₹).
4. 4.What is the difference between the compound interest and the simple interest on ₹20000 at 8% per year for 2 years (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹2500 at 8% per year for 2 years (in ₹)?
6. 6.Find the compound interest on ₹10400 at 25% per year for 2 years, compounded every year (in ₹).
7. 7.A town has 15000 people. The population grows by 12% every year. What will the population be after 2 years?
8. 8.What is the difference between the compound interest and the simple interest on ₹29200 at 5% per year for 2 years (in ₹)?
9. 9.A scooter is worth ₹2500. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
10. 10.Find the compound interest on ₹20000 at 5% per year for 2 years, compounded every year (in ₹).
11. 11.What is the difference between the compound interest and the simple interest on ₹23900 at 10% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹28800 at 15% per year for 1 year, compounded every year (in ₹).
13. 13.What amount will ₹48000 grow to in 3 years at 5% per year compound interest (in ₹)?
14. 14.Find the compound interest on ₹2500 at 8% per year for 2 years, compounded every year (in ₹).
15. 15.What amount will ₹37000 grow to in 1 year at 5% per year compound interest (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹39200 at 5% per year for 2 years (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹7500 at 12% per year for 2 years (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹38000 at 15% per year for 2 years (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹25200 at 15% per year for 2 years (in ₹)?
20. 20.What amount will ₹3000 grow to in 3 years at 10% per year compound interest (in ₹)?
21. 21.A town has 6100 people. The population grows by 10% every year. What will the population be after 2 years?
22. 22.What is the difference between the compound interest and the simple interest on ₹10000 at 12% per year for 2 years (in ₹)?
23. 23.A town has 60000 people. The population grows by 4% every year. What will the population be after 2 years?
24. 24.What is the difference between the compound interest and the simple interest on ₹12800 at 5% per year for 2 years (in ₹)?
25. 25.A scooter is worth ₹8000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
26. 26.Find the compound interest on ₹32000 at 15% per year for 3 years, compounded every year (in ₹).
27. 27.What amount will ₹41200 grow to in 2 years at 15% per year compound interest (in ₹)?
28. 28.Find the compound interest on ₹11200 at 25% per year for 3 years, compounded every year (in ₹).
29. 29.Find the compound interest on ₹13500 at 10% per year for 1 year, compounded every year (in ₹).
30. 30.Find the compound interest on ₹21200 at 15% per year for 1 year, compounded every year (in ₹).
31. 31.What amount will ₹13600 grow to in 1 year at 10% per year compound interest (in ₹)?
32. 32.Find the compound interest on ₹30100 at 4% per year for 1 year, compounded every year (in ₹).
33. 33.Find the compound interest on ₹4700 at 5% per year for 1 year, compounded every year (in ₹).
34. 34.Find the compound interest on ₹17500 at 10% per year for 1 year, compounded every year (in ₹).
35. 35.What amount will ₹43200 grow to in 2 years at 5% per year compound interest (in ₹)?
36. 36.A scooter is worth ₹56100. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
37. 37.A town has 5500 people. The population grows by 8% every year. What will the population be after 1 year?
38. 38.What amount will ₹48900 grow to in 1 year at 5% per year compound interest (in ₹)?
39. 39.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹40800 at 20% per year for 2 years (in ₹)?

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