Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 944 · 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 ₹57500 at 4% per year for 2 years (in ₹)?
2. 2.Find the compound interest on ₹40000 at 8% per year for 2 years, compounded every year (in ₹).
3. 3.Find the compound interest on ₹24000 at 15% per year for 3 years, compounded every year (in ₹).
4. 4.A scooter is worth ₹24000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
5. 5.Find the compound interest on ₹27600 at 15% per year for 2 years, compounded every year (in ₹).
6. 6.A scooter is worth ₹59300. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
7. 7.A scooter is worth ₹47700. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
8. 8.What is the difference between the compound interest and the simple interest on ₹2400 at 5% per year for 2 years (in ₹)?
9. 9.What amount will ₹5000 grow to in 2 years at 4% per year compound interest (in ₹)?
10. 10.Find the compound interest on ₹40000 at 15% per year for 3 years, compounded every year (in ₹).
11. 11.Find the compound interest on ₹6400 at 25% per year for 2 years, compounded every year (in ₹).
12. 12.A scooter is worth ₹32800. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
13. 13.What amount will ₹34000 grow to in 2 years at 15% per year compound interest (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹60000 at 12% per year for 2 years (in ₹)?
15. 15.What amount will ₹46400 grow to in 1 year at 4% per year compound interest (in ₹)?
16. 16.A town has 24000 people. The population grows by 5% every year. What will the population be after 3 years?
17. 17.Find the compound interest on ₹44000 at 5% per year for 2 years, compounded every year (in ₹).
18. 18.Find the compound interest on ₹47800 at 20% per year for 2 years, compounded every year (in ₹).
19. 19.A scooter is worth ₹50000. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
20. 20.What amount will ₹33600 grow to in 3 years at 25% per year compound interest (in ₹)?
21. 21.What amount will ₹16400 grow to in 2 years at 5% per year compound interest (in ₹)?
22. 22.Find the compound interest on ₹8000 at 25% per year for 3 years, compounded every year (in ₹).
23. 23.A town has 30800 people. The population grows by 5% every year. What will the population be after 2 years?
24. 24.What amount will ₹37000 grow to in 2 years at 10% per year compound interest (in ₹)?
25. 25.A town has 6100 people. The population grows by 5% every year. What will the population be after 1 year?
26. 26.Find the compound interest on ₹45000 at 12% per year for 2 years, compounded every year (in ₹).
27. 27.Find the compound interest on ₹8300 at 12% per year for 1 year, compounded every year (in ₹).
28. 28.Find the compound interest on ₹8300 at 5% per year for 1 year, compounded every year (in ₹).
29. 29.What is the difference between the compound interest and the simple interest on ₹32400 at 5% per year for 2 years (in ₹)?
30. 30.A scooter is worth ₹32000. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
31. 31.What amount will ₹4900 grow to in 1 year at 25% per year compound interest (in ₹)?
32. 32.A scooter is worth ₹55000. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
33. 33.A scooter is worth ₹42500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
34. 34.Find the compound interest on ₹37500 at 12% per year for 2 years, compounded every year (in ₹).
35. 35.What amount will ₹24800 grow to in 2 years at 25% per year compound interest (in ₹)?
36. 36.What amount will ₹52500 grow to in 2 years at 12% per year compound interest (in ₹)?
37. 37.Find the compound interest on ₹40000 at 25% per year for 3 years, compounded every year (in ₹).
38. 38.What amount will ₹8100 grow to in 1 year at 5% per year compound interest (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹32400 at 25% per year for 2 years (in ₹)?
40. 40.A scooter is worth ₹49500. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?

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