Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 8 · 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 ₹37500 at 12% per year for 2 years (in ₹)?
2. 2.What amount will ₹26500 grow to in 3 years at 20% per year compound interest (in ₹)?
3. 3.Find the compound interest on ₹60000 at 12% per year for 2 years, compounded every year (in ₹).
4. 4.Find the compound interest on ₹25200 at 25% per year for 2 years, compounded every year (in ₹).
5. 5.What is the difference between the compound interest and the simple interest on ₹51600 at 5% per year for 2 years (in ₹)?
6. 6.What amount will ₹38600 grow to in 1 year at 8% per year compound interest (in ₹)?
7. 7.A scooter is worth ₹46100. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
8. 8.What amount will ₹52500 grow to in 2 years at 4% per year compound interest (in ₹)?
9. 9.What amount will ₹6800 grow to in 2 years at 5% per year compound interest (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹45000 at 4% per year for 2 years (in ₹)?
11. 11.What amount will ₹5600 grow to in 1 year at 12% per year compound interest (in ₹)?
12. 12.What amount will ₹19800 grow to in 1 year at 5% per year compound interest (in ₹)?
13. 13.What is the difference between the compound interest and the simple interest on ₹12500 at 4% per year for 2 years (in ₹)?
14. 14.A town has 52300 people. The population grows by 8% every year. What will the population be after 1 year?
15. 15.What amount will ₹17500 grow to in 2 years at 12% per year compound interest (in ₹)?
16. 16.What amount will ₹24000 grow to in 3 years at 5% per year compound interest (in ₹)?
17. 17.Find the compound interest on ₹16000 at 5% per year for 2 years, compounded every year (in ₹).
18. 18.What amount will ₹58000 grow to in 3 years at 20% per year compound interest (in ₹)?
19. 19.What amount will ₹32500 grow to in 3 years at 20% per year compound interest (in ₹)?
20. 20.A town has 45900 people. The population grows by 12% every year. What will the population be after 1 year?
21. 21.A scooter is worth ₹29200. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
22. 22.What amount will ₹28800 grow to in 2 years at 10% per year compound interest (in ₹)?
23. 23.Find the compound interest on ₹56600 at 25% per year for 1 year, compounded every year (in ₹).
24. 24.What amount will ₹3200 grow to in 2 years at 25% per year compound interest (in ₹)?
25. 25.A scooter is worth ₹6000. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
26. 26.Find the compound interest on ₹56300 at 15% per year for 1 year, compounded every year (in ₹).
27. 27.Find the compound interest on ₹31300 at 15% per year for 1 year, compounded every year (in ₹).
28. 28.What amount will ₹11600 grow to in 2 years at 5% per year compound interest (in ₹)?
29. 29.What amount will ₹4200 grow to in 2 years at 10% per year compound interest (in ₹)?
30. 30.A scooter is worth ₹59200. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹18000 at 5% per year for 2 years (in ₹)?
32. 32.Find the compound interest on ₹29200 at 25% per year for 1 year, compounded every year (in ₹).
33. 33.What amount will ₹22200 grow to in 2 years at 10% per year compound interest (in ₹)?
34. 34.A town has 40600 people. The population grows by 12% every year. What will the population be after 1 year?
35. 35.A town has 34000 people. The population grows by 10% every year. What will the population be after 2 years?
36. 36.Find the compound interest on ₹43000 at 10% per year for 2 years, compounded every year (in ₹).
37. 37.Find the compound interest on ₹20000 at 8% per year for 2 years, compounded every year (in ₹).
38. 38.What is the difference between the compound interest and the simple interest on ₹20000 at 12% per year for 2 years (in ₹)?
39. 39.A scooter is worth ₹25700. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹57500 at 4% per year for 2 years (in ₹)?

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