Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 996 · 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.Find the compound interest on ₹7000 at 10% per year for 3 years, compounded every year (in ₹).
2. 2.What is the difference between the compound interest and the simple interest on ₹47600 at 5% per year for 2 years (in ₹)?
3. 3.A scooter is worth ₹12500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹27500 at 4% per year for 2 years (in ₹)?
5. 5.What amount will ₹8000 grow to in 3 years at 5% per year compound interest (in ₹)?
6. 6.Find the compound interest on ₹51300 at 4% per year for 1 year, compounded every year (in ₹).
7. 7.A town has 17600 people. The population grows by 25% every year. What will the population be after 2 years?
8. 8.What amount will ₹24300 grow to in 1 year at 25% per year compound interest (in ₹)?
9. 9.Find the compound interest on ₹49400 at 4% per year for 1 year, compounded every year (in ₹).
10. 10.What amount will ₹5000 grow to in 3 years at 10% per year compound interest (in ₹)?
11. 11.A scooter is worth ₹27200. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
12. 12.Find the compound interest on ₹2400 at 10% per year for 1 year, compounded every year (in ₹).
13. 13.Find the compound interest on ₹12600 at 4% per year for 1 year, compounded every year (in ₹).
14. 14.What is the difference between the compound interest and the simple interest on ₹7600 at 25% per year for 2 years (in ₹)?
15. 15.Find the compound interest on ₹40000 at 8% per year for 2 years, compounded every year (in ₹).
16. 16.Find the compound interest on ₹42000 at 10% per year for 1 year, compounded every year (in ₹).
17. 17.What is the difference between the compound interest and the simple interest on ₹5300 at 10% per year for 2 years (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹4400 at 5% per year for 2 years (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹36900 at 10% per year for 2 years (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹50000 at 5% per year for 2 years (in ₹)?
21. 21.Find the compound interest on ₹27700 at 4% per year for 1 year, compounded every year (in ₹).
22. 22.What amount will ₹50000 grow to in 2 years at 8% per year compound interest (in ₹)?
23. 23.What amount will ₹8400 grow to in 1 year at 25% per year compound interest (in ₹)?
24. 24.A scooter is worth ₹6400. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
25. 25.Find the compound interest on ₹16000 at 5% per year for 3 years, compounded every year (in ₹).
26. 26.What is the difference between the compound interest and the simple interest on ₹59600 at 25% per year for 2 years (in ₹)?
27. 27.A scooter is worth ₹56000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
28. 28.Find the compound interest on ₹19800 at 8% per year for 1 year, compounded every year (in ₹).
29. 29.A town has 15000 people. The population grows by 12% every year. What will the population be after 2 years?
30. 30.Find the compound interest on ₹59500 at 5% per year for 1 year, compounded every year (in ₹).
31. 31.Find the compound interest on ₹55600 at 15% per year for 2 years, compounded every year (in ₹).
32. 32.What is the difference between the compound interest and the simple interest on ₹57500 at 12% per year for 2 years (in ₹)?
33. 33.Find the compound interest on ₹9600 at 10% per year for 1 year, compounded every year (in ₹).
34. 34.A town has 12800 people. The population grows by 25% every year. What will the population be after 3 years?
35. 35.A scooter is worth ₹33900. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
36. 36.What amount will ₹55000 grow to in 2 years at 4% per year compound interest (in ₹)?
37. 37.Find the compound interest on ₹35600 at 5% per year for 1 year, compounded every year (in ₹).
38. 38.What is the difference between the compound interest and the simple interest on ₹17500 at 4% per year for 2 years (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹33200 at 10% per year for 2 years (in ₹)?
40. 40.Find the compound interest on ₹9600 at 5% per year for 1 year, compounded every year (in ₹).

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