Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 467 · 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 ₹48000 grow to in 3 years at 5% per year compound interest (in ₹)?
2. 2.What amount will ₹19500 grow to in 1 year at 8% per year compound interest (in ₹)?
3. 3.What amount will ₹32000 grow to in 3 years at 15% per year compound interest (in ₹)?
4. 4.What amount will ₹14400 grow to in 3 years at 25% per year compound interest (in ₹)?
5. 5.What amount will ₹4800 grow to in 1 year at 15% per year compound interest (in ₹)?
6. 6.A scooter is worth ₹29600. Its value falls by 20% 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 ₹52400 at 25% per year for 2 years (in ₹)?
8. 8.A scooter is worth ₹37700. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
9. 9.A town has 17800 people. The population grows by 10% every year. What will the population be after 2 years?
10. 10.Find the compound interest on ₹56400 at 5% per year for 1 year, compounded every year (in ₹).
11. 11.A scooter is worth ₹57600. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
12. 12.What is the difference between the compound interest and the simple interest on ₹12500 at 8% per year for 2 years (in ₹)?
13. 13.What amount will ₹35000 grow to in 2 years at 8% per year compound interest (in ₹)?
14. 14.A town has 44200 people. The population grows by 10% every year. What will the population be after 2 years?
15. 15.What is the difference between the compound interest and the simple interest on ₹27500 at 12% per year for 2 years (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹7500 at 12% per year for 2 years (in ₹)?
17. 17.Find the compound interest on ₹30400 at 20% per year for 1 year, compounded every year (in ₹).
18. 18.What amount will ₹7200 grow to in 2 years at 5% per year compound interest (in ₹)?
19. 19.Find the compound interest on ₹11200 at 5% per year for 2 years, compounded every year (in ₹).
20. 20.What amount will ₹4000 grow to in 2 years at 25% per year compound interest (in ₹)?
21. 21.What amount will ₹58900 grow to in 1 year at 8% per year compound interest (in ₹)?
22. 22.A town has 44500 people. The population grows by 10% every year. What will the population be after 2 years?
23. 23.What amount will ₹48000 grow to in 2 years at 15% per year compound interest (in ₹)?
24. 24.What amount will ₹19500 grow to in 2 years at 10% per year compound interest (in ₹)?
25. 25.A scooter is worth ₹55800. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
26. 26.A scooter is worth ₹32500. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
27. 27.Find the compound interest on ₹9000 at 10% per year for 3 years, compounded every year (in ₹).
28. 28.What amount will ₹49700 grow to in 1 year at 5% per year compound interest (in ₹)?
29. 29.Find the compound interest on ₹4500 at 5% per year for 1 year, compounded every year (in ₹).
30. 30.A scooter is worth ₹20500. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
31. 31.What amount will ₹46400 grow to in 2 years at 25% per year compound interest (in ₹)?
32. 32.A scooter is worth ₹17500. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹7200 at 5% per year for 2 years (in ₹)?
34. 34.What amount will ₹8000 grow to in 3 years at 5% per year compound interest (in ₹)?
35. 35.A scooter is worth ₹16200. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
36. 36.Find the compound interest on ₹17500 at 8% per year for 2 years, compounded every year (in ₹).
37. 37.What amount will ₹16500 grow to in 3 years at 20% per year compound interest (in ₹)?
38. 38.What amount will ₹36800 grow to in 2 years at 15% per year compound interest (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹50000 at 12% per year for 2 years (in ₹)?
40. 40.What amount will ₹47500 grow to in 2 years at 4% per year compound interest (in ₹)?

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