Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 453 · 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 ₹40000 grow to in 3 years at 15% per year compound interest (in ₹)?
2. 2.What amount will ₹42500 grow to in 2 years at 4% per year compound interest (in ₹)?
3. 3.Find the compound interest on ₹52500 at 4% per year for 2 years, compounded every year (in ₹).
4. 4.Find the compound interest on ₹27200 at 25% per year for 3 years, compounded every year (in ₹).
5. 5.A town has 9200 people. The population grows by 5% every year. What will the population be after 2 years?
6. 6.What amount will ₹52000 grow to in 3 years at 10% per year compound interest (in ₹)?
7. 7.What amount will ₹46100 grow to in 1 year at 25% per year compound interest (in ₹)?
8. 8.What is the difference between the compound interest and the simple interest on ₹30000 at 4% per year for 2 years (in ₹)?
9. 9.A town has 10000 people. The population grows by 25% every year. What will the population be after 2 years?
10. 10.Find the compound interest on ₹16000 at 15% per year for 3 years, compounded every year (in ₹).
11. 11.Find the compound interest on ₹32000 at 5% per year for 3 years, compounded every year (in ₹).
12. 12.Find the compound interest on ₹27500 at 4% per year for 2 years, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹27500 at 4% per year for 2 years (in ₹)?
14. 14.What amount will ₹11200 grow to in 3 years at 25% per year compound interest (in ₹)?
15. 15.Find the compound interest on ₹54000 at 20% per year for 3 years, compounded every year (in ₹).
16. 16.What amount will ₹5600 grow to in 2 years at 5% per year compound interest (in ₹)?
17. 17.Find the compound interest on ₹31600 at 20% per year for 2 years, compounded every year (in ₹).
18. 18.Find the compound interest on ₹48000 at 15% per year for 3 years, compounded every year (in ₹).
19. 19.What amount will ₹58600 grow to in 1 year at 15% per year compound interest (in ₹)?
20. 20.Find the compound interest on ₹16700 at 15% per year for 1 year, compounded every year (in ₹).
21. 21.A scooter is worth ₹39600. Its value falls by 25% every year. What will it be worth after 2 years (in ₹)?
22. 22.Find the compound interest on ₹15000 at 12% per year for 1 year, compounded every year (in ₹).
23. 23.A town has 38200 people. The population grows by 4% every year. What will the population be after 1 year?
24. 24.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
25. 25.What amount will ₹9000 grow to in 3 years at 10% per year compound interest (in ₹)?
26. 26.Find the compound interest on ₹56000 at 15% per year for 3 years, compounded every year (in ₹).
27. 27.Find the compound interest on ₹21200 at 10% per year for 1 year, compounded every year (in ₹).
28. 28.What is the difference between the compound interest and the simple interest on ₹2700 at 20% per year for 2 years (in ₹)?
29. 29.What amount will ₹56000 grow to in 3 years at 15% per year compound interest (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹52600 at 10% per year for 2 years (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹29600 at 20% per year for 2 years (in ₹)?
32. 32.Find the compound interest on ₹37500 at 12% per year for 2 years, compounded every year (in ₹).
33. 33.Find the compound interest on ₹58600 at 10% per year for 1 year, compounded every year (in ₹).
34. 34.What amount will ₹51600 grow to in 2 years at 5% per year compound interest (in ₹)?
35. 35.Find the compound interest on ₹31100 at 25% per year for 1 year, compounded every year (in ₹).
36. 36.Find the compound interest on ₹38400 at 12% per year for 1 year, compounded every year (in ₹).
37. 37.A town has 16800 people. The population grows by 10% every year. What will the population be after 2 years?
38. 38.Find the compound interest on ₹15000 at 10% per year for 3 years, compounded every year (in ₹).
39. 39.Find the compound interest on ₹8200 at 5% per year for 1 year, compounded every year (in ₹).
40. 40.Find the compound interest on ₹33600 at 5% per year for 1 year, compounded every year (in ₹).

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