Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 320 · 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 ₹7500 at 10% per year for 1 year, compounded every year (in ₹).
2. 2.Find the compound interest on ₹32300 at 15% per year for 1 year, compounded every year (in ₹).
3. 3.Find the compound interest on ₹35700 at 25% per year for 1 year, compounded every year (in ₹).
4. 4.Find the compound interest on ₹37500 at 4% per year for 2 years, compounded every year (in ₹).
5. 5.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
6. 6.A town has 57200 people. The population grows by 10% every year. What will the population be after 2 years?
7. 7.Find the compound interest on ₹48000 at 15% per year for 3 years, compounded every year (in ₹).
8. 8.A scooter is worth ₹49900. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
9. 9.Find the compound interest on ₹32500 at 4% per year for 2 years, compounded every year (in ₹).
10. 10.What is the difference between the compound interest and the simple interest on ₹32900 at 20% per year for 2 years (in ₹)?
11. 11.A scooter is worth ₹44400. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
12. 12.Find the compound interest on ₹23600 at 15% per year for 2 years, compounded every year (in ₹).
13. 13.A town has 25000 people. The population grows by 4% every year. What will the population be after 2 years?
14. 14.What is the difference between the compound interest and the simple interest on ₹37500 at 4% per year for 2 years (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹48000 at 15% per year for 2 years (in ₹)?
16. 16.Find the compound interest on ₹18400 at 15% per year for 2 years, compounded every year (in ₹).
17. 17.Find the compound interest on ₹12600 at 25% per year for 1 year, compounded every year (in ₹).
18. 18.What is the difference between the compound interest and the simple interest on ₹26200 at 20% per year for 2 years (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹6400 at 25% per year for 2 years (in ₹)?
20. 20.Find the compound interest on ₹30400 at 15% per year for 1 year, compounded every year (in ₹).
21. 21.Find the compound interest on ₹22200 at 5% per year for 1 year, compounded every year (in ₹).
22. 22.A town has 50000 people. The population grows by 4% every year. What will the population be after 2 years?
23. 23.Find the compound interest on ₹19600 at 25% per year for 2 years, compounded every year (in ₹).
24. 24.What amount will ₹20800 grow to in 2 years at 25% per year compound interest (in ₹)?
25. 25.What amount will ₹7200 grow to in 2 years at 25% per year compound interest (in ₹)?
26. 26.Find the compound interest on ₹37500 at 12% per year for 2 years, compounded every year (in ₹).
27. 27.What amount will ₹29000 grow to in 3 years at 20% per year compound interest (in ₹)?
28. 28.Find the compound interest on ₹60000 at 12% per year for 1 year, compounded every year (in ₹).
29. 29.What is the difference between the compound interest and the simple interest on ₹46800 at 15% per year for 2 years (in ₹)?
30. 30.A town has 46600 people. The population grows by 8% every year. What will the population be after 1 year?
31. 31.Find the compound interest on ₹56000 at 5% per year for 3 years, compounded every year (in ₹).
32. 32.A scooter is worth ₹30900. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
33. 33.A scooter is worth ₹20400. Its value falls by 25% every year. What will it be worth after 2 years (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹54000 at 5% per year for 2 years (in ₹)?
35. 35.A scooter is worth ₹14800. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
36. 36.Find the compound interest on ₹58400 at 15% per year for 2 years, compounded every year (in ₹).
37. 37.What is the difference between the compound interest and the simple interest on ₹7500 at 8% per year for 2 years (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹13200 at 15% per year for 2 years (in ₹)?
39. 39.A scooter is worth ₹55400. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹10800 at 25% per year for 2 years (in ₹)?

Free maths worksheets lessons, practice and worksheets at talentjr.in/maths-worksheets