Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 546 · 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 ₹35300 grow to in 1 year at 12% per year compound interest (in ₹)?
2. 2.Find the compound interest on ₹50500 at 20% per year for 3 years, compounded every year (in ₹).
3. 3.What amount will ₹6600 grow to in 1 year at 25% per year compound interest (in ₹)?
4. 4.A scooter is worth ₹59000. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
5. 5.What amount will ₹21000 grow to in 1 year at 20% per year compound interest (in ₹)?
6. 6.What amount will ₹48900 grow to in 2 years at 10% per year compound interest (in ₹)?
7. 7.Find the compound interest on ₹55400 at 5% per year for 1 year, compounded every year (in ₹).
8. 8.What amount will ₹28800 grow to in 3 years at 25% per year compound interest (in ₹)?
9. 9.Find the compound interest on ₹24600 at 20% per year for 2 years, compounded every year (in ₹).
10. 10.What amount will ₹26000 grow to in 3 years at 20% per year compound interest (in ₹)?
11. 11.Find the compound interest on ₹55100 at 5% per year for 1 year, compounded every year (in ₹).
12. 12.A scooter is worth ₹52400. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
13. 13.A town has 11500 people. The population grows by 12% every year. What will the population be after 1 year?
14. 14.What is the difference between the compound interest and the simple interest on ₹12000 at 15% per year for 2 years (in ₹)?
15. 15.What amount will ₹7000 grow to in 3 years at 20% per year compound interest (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹57200 at 15% per year for 2 years (in ₹)?
17. 17.A scooter is worth ₹27300. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
18. 18.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹56100 at 20% per year for 2 years (in ₹)?
20. 20.What amount will ₹42500 grow to in 1 year at 12% per year compound interest (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹3300 at 10% per year for 2 years (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹45400 at 20% per year for 2 years (in ₹)?
23. 23.Find the compound interest on ₹39800 at 10% per year for 1 year, compounded every year (in ₹).
24. 24.A scooter is worth ₹2700. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
25. 25.What amount will ₹6800 grow to in 1 year at 5% per year compound interest (in ₹)?
26. 26.Find the compound interest on ₹51100 at 10% per year for 2 years, compounded every year (in ₹).
27. 27.What is the difference between the compound interest and the simple interest on ₹39300 at 10% per year for 2 years (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹47600 at 15% per year for 2 years (in ₹)?
29. 29.Find the compound interest on ₹59000 at 8% per year for 1 year, compounded every year (in ₹).
30. 30.Find the compound interest on ₹11600 at 5% per year for 2 years, compounded every year (in ₹).
31. 31.A scooter is worth ₹8000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
32. 32.Find the compound interest on ₹44800 at 25% per year for 3 years, compounded every year (in ₹).
33. 33.Find the compound interest on ₹58300 at 20% per year for 1 year, compounded every year (in ₹).
34. 34.What is the difference between the compound interest and the simple interest on ₹13600 at 15% per year for 2 years (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹47000 at 10% per year for 2 years (in ₹)?
36. 36.A town has 7600 people. The population grows by 4% every year. What will the population be after 1 year?
37. 37.Find the compound interest on ₹47700 at 12% per year for 1 year, compounded every year (in ₹).
38. 38.Find the compound interest on ₹55000 at 10% per year for 3 years, compounded every year (in ₹).
39. 39.Find the compound interest on ₹59300 at 5% per year for 1 year, compounded every year (in ₹).
40. 40.A scooter is worth ₹54600. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?

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