Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 751 · 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.Find the compound interest on ₹15000 at 12% per year for 2 years, compounded every year (in ₹).
2. 2.A scooter is worth ₹10800. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
3. 3.What amount will ₹59200 grow to in 2 years at 15% per year compound interest (in ₹)?
4. 4.Find the compound interest on ₹48000 at 15% per year for 3 years, compounded every year (in ₹).
5. 5.Find the compound interest on ₹18000 at 5% per year for 2 years, compounded every year (in ₹).
6. 6.What is the difference between the compound interest and the simple interest on ₹52500 at 4% per year for 2 years (in ₹)?
7. 7.Find the compound interest on ₹14700 at 5% per year for 1 year, compounded every year (in ₹).
8. 8.Find the compound interest on ₹7900 at 10% per year for 2 years, compounded every year (in ₹).
9. 9.What amount will ₹57600 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 ₹20000 at 4% per year for 2 years (in ₹)?
11. 11.A town has 11600 people. The population grows by 25% every year. What will the population be after 2 years?
12. 12.What is the difference between the compound interest and the simple interest on ₹34000 at 15% per year for 2 years (in ₹)?
13. 13.What amount will ₹16500 grow to in 2 years at 20% per year compound interest (in ₹)?
14. 14.A scooter is worth ₹22500. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
15. 15.What amount will ₹19300 grow to in 1 year at 8% per year compound interest (in ₹)?
16. 16.Find the compound interest on ₹11300 at 25% per year for 1 year, compounded every year (in ₹).
17. 17.A town has 44800 people. The population grows by 25% every year. What will the population be after 3 years?
18. 18.What is the difference between the compound interest and the simple interest on ₹2500 at 4% per year for 2 years (in ₹)?
19. 19.Find the compound interest on ₹16000 at 5% per year for 3 years, compounded every year (in ₹).
20. 20.What amount will ₹32500 grow to in 2 years at 8% per year compound interest (in ₹)?
21. 21.Find the compound interest on ₹37500 at 20% per year for 1 year, compounded every year (in ₹).
22. 22.What amount will ₹24800 grow to in 2 years at 25% per year compound interest (in ₹)?
23. 23.What amount will ₹48800 grow to in 2 years at 25% per year compound interest (in ₹)?
24. 24.Find the compound interest on ₹10000 at 8% per year for 2 years, compounded every year (in ₹).
25. 25.Find the compound interest on ₹25300 at 8% per year for 1 year, compounded every year (in ₹).
26. 26.What is the difference between the compound interest and the simple interest on ₹50200 at 20% per year for 2 years (in ₹)?
27. 27.What amount will ₹15000 grow to in 2 years at 8% per year compound interest (in ₹)?
28. 28.Find the compound interest on ₹45600 at 25% per year for 2 years, compounded every year (in ₹).
29. 29.What amount will ₹18800 grow to in 2 years at 15% per year compound interest (in ₹)?
30. 30.A scooter is worth ₹19700. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹57500 at 12% per year for 2 years (in ₹)?
32. 32.What amount will ₹50000 grow to in 2 years at 4% per year compound interest (in ₹)?
33. 33.Find the compound interest on ₹17500 at 8% per year for 2 years, compounded every year (in ₹).
34. 34.What is the difference between the compound interest and the simple interest on ₹15000 at 12% per year for 2 years (in ₹)?
35. 35.What amount will ₹2800 grow to in 2 years at 20% per year compound interest (in ₹)?
36. 36.What amount will ₹47500 grow to in 2 years at 4% per year compound interest (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹51200 at 15% per year for 2 years (in ₹)?
38. 38.What amount will ₹40000 grow to in 3 years at 5% per year compound interest (in ₹)?
39. 39.What amount will ₹8000 grow to in 3 years at 25% per year compound interest (in ₹)?
40. 40.Find the compound interest on ₹12500 at 25% per year for 1 year, compounded every year (in ₹).

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