Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 753 · 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 ₹44800 grow to in 1 year at 12% per year compound interest (in ₹)?
2. 2.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
3. 3.A town has 28800 people. The population grows by 5% every year. What will the population be after 2 years?
4. 4.Find the compound interest on ₹40300 at 15% per year for 1 year, compounded every year (in ₹).
5. 5.Find the compound interest on ₹20800 at 15% per year for 2 years, compounded every year (in ₹).
6. 6.What is the difference between the compound interest and the simple interest on ₹7500 at 12% per year for 2 years (in ₹)?
7. 7.What amount will ₹46400 grow to in 3 years at 25% per year compound interest (in ₹)?
8. 8.Find the compound interest on ₹16000 at 15% per year for 3 years, compounded every year (in ₹).
9. 9.What is the difference between the compound interest and the simple interest on ₹54000 at 15% per year for 2 years (in ₹)?
10. 10.What amount will ₹13700 grow to in 2 years at 10% per year compound interest (in ₹)?
11. 11.What is the difference between the compound interest and the simple interest on ₹47600 at 15% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹26400 at 5% per year for 2 years, compounded every year (in ₹).
13. 13.Find the compound interest on ₹11400 at 25% per year for 1 year, compounded every year (in ₹).
14. 14.A town has 33900 people. The population grows by 12% every year. What will the population be after 1 year?
15. 15.What amount will ₹35500 grow to in 1 year at 15% per year compound interest (in ₹)?
16. 16.What amount will ₹48000 grow to in 2 years at 15% per year compound interest (in ₹)?
17. 17.A town has 57600 people. The population grows by 25% every year. What will the population be after 2 years?
18. 18.What amount will ₹2500 grow to in 2 years at 8% per year compound interest (in ₹)?
19. 19.Find the compound interest on ₹7200 at 15% per year for 2 years, compounded every year (in ₹).
20. 20.What amount will ₹56800 grow to in 2 years at 5% per year compound interest (in ₹)?
21. 21.Find the compound interest on ₹22700 at 10% per year for 2 years, compounded every year (in ₹).
22. 22.What is the difference between the compound interest and the simple interest on ₹26000 at 15% per year for 2 years (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹16800 at 5% per year for 2 years (in ₹)?
24. 24.A town has 46600 people. The population grows by 20% every year. What will the population be after 2 years?
25. 25.What is the difference between the compound interest and the simple interest on ₹44800 at 25% per year for 2 years (in ₹)?
26. 26.A scooter is worth ₹21600. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
27. 27.Find the compound interest on ₹46400 at 25% per year for 3 years, compounded every year (in ₹).
28. 28.What is the difference between the compound interest and the simple interest on ₹12500 at 4% per year for 2 years (in ₹)?
29. 29.A scooter is worth ₹37300. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹45200 at 5% per year for 2 years (in ₹)?
31. 31.What amount will ₹22700 grow to in 1 year at 20% per year compound interest (in ₹)?
32. 32.A scooter is worth ₹31000. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
33. 33.What amount will ₹46200 grow to in 1 year at 12% per year compound interest (in ₹)?
34. 34.What amount will ₹22100 grow to in 1 year at 5% per year compound interest (in ₹)?
35. 35.Find the compound interest on ₹25000 at 10% per year for 3 years, compounded every year (in ₹).
36. 36.What is the difference between the compound interest and the simple interest on ₹49200 at 5% per year for 2 years (in ₹)?
37. 37.What amount will ₹22000 grow to in 2 years at 25% per year compound interest (in ₹)?
38. 38.What amount will ₹18900 grow to in 1 year at 8% per year compound interest (in ₹)?
39. 39.Find the compound interest on ₹40000 at 12% per year for 2 years, compounded every year (in ₹).
40. 40.Find the compound interest on ₹51500 at 12% per year for 1 year, compounded every year (in ₹).

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