Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 618 · 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 amount will ₹11500 grow to in 1 year at 20% per year compound interest (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹45000 at 4% per year for 2 years (in ₹)?
3. 3.A scooter is worth ₹45800. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
4. 4.A town has 6400 people. The population grows by 12% every year. What will the population be after 1 year?
5. 5.What amount will ₹24800 grow to in 2 years at 25% per year compound interest (in ₹)?
6. 6.Find the compound interest on ₹48000 at 5% per year for 3 years, compounded every year (in ₹).
7. 7.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?
8. 8.A town has 25000 people. The population grows by 8% every year. What will the population be after 2 years?
9. 9.What is the difference between the compound interest and the simple interest on ₹2800 at 25% per year for 2 years (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹20000 at 8% per year for 2 years (in ₹)?
11. 11.What amount will ₹19300 grow to in 1 year at 12% per year compound interest (in ₹)?
12. 12.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
13. 13.Find the compound interest on ₹42500 at 4% per year for 2 years, compounded every year (in ₹).
14. 14.What is the difference between the compound interest and the simple interest on ₹4100 at 10% per year for 2 years (in ₹)?
15. 15.Find the compound interest on ₹32900 at 5% per year for 1 year, compounded every year (in ₹).
16. 16.What is the difference between the compound interest and the simple interest on ₹52500 at 8% per year for 2 years (in ₹)?
17. 17.Find the compound interest on ₹58100 at 20% per year for 1 year, compounded every year (in ₹).
18. 18.What amount will ₹18200 grow to in 1 year at 10% per year compound interest (in ₹)?
19. 19.A town has 30000 people. The population grows by 12% every year. What will the population be after 2 years?
20. 20.Find the compound interest on ₹39300 at 8% per year for 1 year, compounded every year (in ₹).
21. 21.Find the compound interest on ₹36800 at 25% per year for 2 years, compounded every year (in ₹).
22. 22.What amount will ₹34400 grow to in 2 years at 15% per year compound interest (in ₹)?
23. 23.Find the compound interest on ₹34700 at 8% per year for 1 year, compounded every year (in ₹).
24. 24.What amount will ₹47500 grow to in 2 years at 8% per year compound interest (in ₹)?
25. 25.What amount will ₹8000 grow to in 3 years at 5% per year compound interest (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹5000 at 4% per year for 2 years (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹57500 at 4% per year for 2 years (in ₹)?
28. 28.Find the compound interest on ₹13600 at 25% per year for 1 year, compounded every year (in ₹).
29. 29.What amount will ₹48000 grow to in 3 years at 15% per year compound interest (in ₹)?
30. 30.Find the compound interest on ₹12000 at 15% per year for 2 years, compounded every year (in ₹).
31. 31.Find the compound interest on ₹2000 at 10% per year for 3 years, compounded every year (in ₹).
32. 32.A town has 40000 people. The population grows by 5% every year. What will the population be after 3 years?
33. 33.What is the difference between the compound interest and the simple interest on ₹8500 at 20% per year for 2 years (in ₹)?
34. 34.Find the compound interest on ₹28800 at 5% per year for 2 years, compounded every year (in ₹).
35. 35.What is the difference between the compound interest and the simple interest on ₹32900 at 10% per year for 2 years (in ₹)?
36. 36.What amount will ₹41800 grow to in 1 year at 20% per year compound interest (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹51600 at 25% per year for 2 years (in ₹)?
38. 38.A town has 43500 people. The population grows by 10% every year. What will the population be after 1 year?
39. 39.A scooter is worth ₹56900. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
40. 40.Find the compound interest on ₹49700 at 4% per year for 1 year, compounded every year (in ₹).

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