Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 290 · 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 ₹56000 at 5% per year for 2 years, compounded every year (in ₹).
2. 2.What amount will ₹35800 grow to in 1 year at 8% per year compound interest (in ₹)?
3. 3.What amount will ₹40000 grow to in 3 years at 5% per year compound interest (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹33500 at 10% per year for 2 years (in ₹)?
5. 5.Find the compound interest on ₹20000 at 8% per year for 2 years, compounded every year (in ₹).
6. 6.What is the difference between the compound interest and the simple interest on ₹42000 at 25% per year for 2 years (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹4000 at 15% per year for 2 years (in ₹)?
8. 8.Find the compound interest on ₹43200 at 5% per year for 2 years, compounded every year (in ₹).
9. 9.A scooter is worth ₹30000. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
10. 10.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?
11. 11.What amount will ₹13000 grow to in 3 years at 20% per year compound interest (in ₹)?
12. 12.What amount will ₹34600 grow to in 1 year at 5% per year compound interest (in ₹)?
13. 13.What amount will ₹7700 grow to in 1 year at 5% per year compound interest (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹37500 at 8% per year for 2 years (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹11200 at 5% per year for 2 years (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹49000 at 10% per year for 2 years (in ₹)?
17. 17.Find the compound interest on ₹48600 at 5% per year for 1 year, compounded every year (in ₹).
18. 18.What amount will ₹34600 grow to in 1 year at 20% per year compound interest (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹55000 at 8% per year for 2 years (in ₹)?
20. 20.Find the compound interest on ₹16000 at 5% per year for 3 years, compounded every year (in ₹).
21. 21.Find the compound interest on ₹18300 at 8% per year for 1 year, compounded every year (in ₹).
22. 22.What is the difference between the compound interest and the simple interest on ₹5300 at 10% per year for 2 years (in ₹)?
23. 23.A town has 48400 people. The population grows by 15% every year. What will the population be after 2 years?
24. 24.A town has 13600 people. The population grows by 25% every year. What will the population be after 1 year?
25. 25.Find the compound interest on ₹12200 at 10% per year for 2 years, compounded every year (in ₹).
26. 26.What is the difference between the compound interest and the simple interest on ₹4500 at 10% per year for 2 years (in ₹)?
27. 27.Find the compound interest on ₹42400 at 5% per year for 2 years, compounded every year (in ₹).
28. 28.Find the compound interest on ₹3100 at 4% per year for 1 year, compounded every year (in ₹).
29. 29.Find the compound interest on ₹35900 at 20% per year for 1 year, compounded every year (in ₹).
30. 30.What amount will ₹50300 grow to in 1 year at 20% per year compound interest (in ₹)?
31. 31.A town has 4700 people. The population grows by 4% every year. What will the population be after 1 year?
32. 32.Find the compound interest on ₹58900 at 8% per year for 1 year, compounded every year (in ₹).
33. 33.Find the compound interest on ₹25500 at 20% per year for 3 years, compounded every year (in ₹).
34. 34.What amount will ₹40000 grow to in 3 years at 25% per year compound interest (in ₹)?
35. 35.What amount will ₹11800 grow to in 1 year at 5% per year compound interest (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹35000 at 12% per year for 2 years (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹10000 at 8% per year for 2 years (in ₹)?
38. 38.A town has 50000 people. The population grows by 4% every year. What will the population be after 2 years?
39. 39.What amount will ₹32500 grow to in 2 years at 8% per year compound interest (in ₹)?
40. 40.Find the compound interest on ₹8200 at 20% per year for 1 year, compounded every year (in ₹).

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