Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 975 · 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 ₹47200 at 15% per year for 2 years (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹30800 at 5% per year for 2 years (in ₹)?
3. 3.Find the compound interest on ₹20200 at 10% per year for 1 year, compounded every year (in ₹).
4. 4.What amount will ₹4800 grow to in 2 years at 5% per year compound interest (in ₹)?
5. 5.What amount will ₹40000 grow to in 3 years at 25% per year compound interest (in ₹)?
6. 6.A scooter is worth ₹33900. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹17500 at 4% per year for 2 years (in ₹)?
8. 8.A town has 40000 people. The population grows by 10% every year. What will the population be after 3 years?
9. 9.Find the compound interest on ₹42300 at 12% per year for 1 year, compounded every year (in ₹).
10. 10.What amount will ₹17500 grow to in 2 years at 4% per year compound interest (in ₹)?
11. 11.What is the difference between the compound interest and the simple interest on ₹10000 at 4% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹3600 at 15% per year for 2 years, compounded every year (in ₹).
13. 13.Find the compound interest on ₹27000 at 8% per year for 1 year, compounded every year (in ₹).
14. 14.What is the difference between the compound interest and the simple interest on ₹17400 at 10% per year for 2 years (in ₹)?
15. 15.Find the compound interest on ₹24000 at 15% per year for 3 years, compounded every year (in ₹).
16. 16.A scooter is worth ₹32700. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
17. 17.What amount will ₹59300 grow to in 1 year at 4% per year compound interest (in ₹)?
18. 18.A town has 24000 people. The population grows by 15% every year. What will the population be after 3 years?
19. 19.What amount will ₹34800 grow to in 1 year at 12% per year compound interest (in ₹)?
20. 20.Find the compound interest on ₹15800 at 20% per year for 1 year, compounded every year (in ₹).
21. 21.Find the compound interest on ₹52200 at 8% per year for 1 year, compounded every year (in ₹).
22. 22.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?
23. 23.What amount will ₹16200 grow to in 1 year at 15% per year compound interest (in ₹)?
24. 24.Find the compound interest on ₹30000 at 8% per year for 2 years, compounded every year (in ₹).
25. 25.What is the difference between the compound interest and the simple interest on ₹56800 at 5% per year for 2 years (in ₹)?
26. 26.Find the compound interest on ₹9000 at 10% per year for 3 years, compounded every year (in ₹).
27. 27.Find the compound interest on ₹52200 at 10% per year for 1 year, compounded every year (in ₹).
28. 28.A town has 40000 people. The population grows by 15% every year. What will the population be after 3 years?
29. 29.A scooter is worth ₹15000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
30. 30.Find the compound interest on ₹18800 at 5% per year for 2 years, compounded every year (in ₹).
31. 31.Find the compound interest on ₹4400 at 20% per year for 2 years, compounded every year (in ₹).
32. 32.What amount will ₹9600 grow to in 3 years at 25% per year compound interest (in ₹)?
33. 33.A scooter is worth ₹13500. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
34. 34.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
35. 35.Find the compound interest on ₹13200 at 15% per year for 2 years, compounded every year (in ₹).
36. 36.What amount will ₹24000 grow to in 3 years at 5% per year compound interest (in ₹)?
37. 37.Find the compound interest on ₹38400 at 25% per year for 3 years, compounded every year (in ₹).
38. 38.What amount will ₹43200 grow to in 3 years at 25% per year compound interest (in ₹)?
39. 39.Find the compound interest on ₹32000 at 5% per year for 3 years, compounded every year (in ₹).
40. 40.A scooter is worth ₹16400. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?

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