Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 995 · 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 ₹12400 at 15% per year for 2 years (in ₹)?
2. 2.A scooter is worth ₹7700. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹30000 at 4% per year for 2 years (in ₹)?
4. 4.A town has 15000 people. The population grows by 12% every year. What will the population be after 2 years?
5. 5.Find the compound interest on ₹8000 at 25% per year for 3 years, compounded every year (in ₹).
6. 6.What amount will ₹30200 grow to in 1 year at 25% per year compound interest (in ₹)?
7. 7.What amount will ₹27500 grow to in 2 years at 4% per year compound interest (in ₹)?
8. 8.What is the difference between the compound interest and the simple interest on ₹57500 at 10% per year for 2 years (in ₹)?
9. 9.Find the compound interest on ₹8000 at 15% per year for 3 years, compounded every year (in ₹).
10. 10.Find the compound interest on ₹56000 at 5% per year for 3 years, compounded every year (in ₹).
11. 11.What amount will ₹56000 grow to in 3 years at 15% per year compound interest (in ₹)?
12. 12.A scooter is worth ₹52300. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
13. 13.What is the difference between the compound interest and the simple interest on ₹58000 at 5% per year for 2 years (in ₹)?
14. 14.A scooter is worth ₹13000. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹17500 at 4% per year for 2 years (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹17500 at 8% per year for 2 years (in ₹)?
17. 17.Find the compound interest on ₹24200 at 15% per year for 1 year, compounded every year (in ₹).
18. 18.What amount will ₹10500 grow to in 1 year at 4% per year compound interest (in ₹)?
19. 19.A scooter is worth ₹2500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹3500 at 10% per year for 2 years (in ₹)?
21. 21.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
22. 22.Find the compound interest on ₹3000 at 10% per year for 3 years, compounded every year (in ₹).
23. 23.Find the compound interest on ₹56000 at 25% per year for 3 years, compounded every year (in ₹).
24. 24.What is the difference between the compound interest and the simple interest on ₹55000 at 4% per year for 2 years (in ₹)?
25. 25.Find the compound interest on ₹20200 at 5% per year for 1 year, compounded every year (in ₹).
26. 26.Find the compound interest on ₹47000 at 10% per year for 1 year, compounded every year (in ₹).
27. 27.A town has 21100 people. The population grows by 10% every year. What will the population be after 2 years?
28. 28.What is the difference between the compound interest and the simple interest on ₹15000 at 4% per year for 2 years (in ₹)?
29. 29.What amount will ₹20800 grow to in 2 years at 5% per year compound interest (in ₹)?
30. 30.What amount will ₹42000 grow to in 2 years at 20% per year compound interest (in ₹)?
31. 31.A town has 10000 people. The population grows by 4% every year. What will the population be after 2 years?
32. 32.What is the difference between the compound interest and the simple interest on ₹7600 at 25% per year for 2 years (in ₹)?
33. 33.A town has 30400 people. The population grows by 5% every year. What will the population be after 2 years?
34. 34.Find the compound interest on ₹30500 at 12% per year for 1 year, compounded every year (in ₹).
35. 35.Find the compound interest on ₹31900 at 5% per year for 1 year, compounded every year (in ₹).
36. 36.A scooter is worth ₹35600. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
37. 37.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
38. 38.Find the compound interest on ₹5000 at 4% per year for 2 years, compounded every year (in ₹).
39. 39.Find the compound interest on ₹23100 at 5% per year for 1 year, compounded every year (in ₹).
40. 40.Find the compound interest on ₹27100 at 20% per year for 1 year, compounded every year (in ₹).

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