Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 395 · 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 ₹58000 at 15% per year for 2 years (in ₹)?
2. 2.What amount will ₹43000 grow to in 3 years at 10% per year compound interest (in ₹)?
3. 3.What amount will ₹7500 grow to in 2 years at 8% per year compound interest (in ₹)?
4. 4.Find the compound interest on ₹26900 at 10% per year for 1 year, compounded every year (in ₹).
5. 5.What amount will ₹32800 grow to in 2 years at 25% per year compound interest (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹45800 at 20% per year for 2 years (in ₹)?
7. 7.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
8. 8.A scooter is worth ₹40100. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
9. 9.A scooter is worth ₹48000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
10. 10.Find the compound interest on ₹56000 at 5% per year for 3 years, compounded every year (in ₹).
11. 11.What is the difference between the compound interest and the simple interest on ₹36400 at 10% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹15600 at 25% per year for 2 years, compounded every year (in ₹).
13. 13.What amount will ₹37800 grow to in 2 years at 10% per year compound interest (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹40000 at 4% per year for 2 years (in ₹)?
15. 15.What amount will ₹30000 grow to in 2 years at 12% per year compound interest (in ₹)?
16. 16.Find the compound interest on ₹47500 at 20% per year for 3 years, compounded every year (in ₹).
17. 17.What is the difference between the compound interest and the simple interest on ₹40000 at 8% per year for 2 years (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹25000 at 12% per year for 2 years (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹58400 at 5% per year for 2 years (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹47600 at 5% per year for 2 years (in ₹)?
21. 21.A town has 12000 people. The population grows by 20% every year. What will the population be after 3 years?
22. 22.Find the compound interest on ₹37800 at 10% per year for 1 year, compounded every year (in ₹).
23. 23.Find the compound interest on ₹6900 at 15% per year for 1 year, compounded every year (in ₹).
24. 24.Find the compound interest on ₹45600 at 5% per year for 2 years, compounded every year (in ₹).
25. 25.A scooter is worth ₹59000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
26. 26.What amount will ₹25100 grow to in 1 year at 8% per year compound interest (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹20000 at 8% per year for 2 years (in ₹)?
28. 28.Find the compound interest on ₹12500 at 4% per year for 2 years, compounded every year (in ₹).
29. 29.What amount will ₹44000 grow to in 3 years at 20% per year compound interest (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹5000 at 8% per year for 2 years (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹4800 at 5% per year for 2 years (in ₹)?
32. 32.What amount will ₹26400 grow to in 1 year at 4% per year compound interest (in ₹)?
33. 33.What amount will ₹15000 grow to in 2 years at 4% per year compound interest (in ₹)?
34. 34.What amount will ₹11200 grow to in 2 years at 25% per year compound interest (in ₹)?
35. 35.A town has 6200 people. The population grows by 10% every year. What will the population be after 1 year?
36. 36.What amount will ₹17200 grow to in 1 year at 15% per year compound interest (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹57500 at 8% per year for 2 years (in ₹)?
38. 38.What amount will ₹12500 grow to in 2 years at 8% per year compound interest (in ₹)?
39. 39.Find the compound interest on ₹38400 at 15% per year for 2 years, compounded every year (in ₹).
40. 40.What is the difference between the compound interest and the simple interest on ₹15000 at 8% per year for 2 years (in ₹)?

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