Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 663 · 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.A town has 28100 people. The population grows by 20% every year. What will the population be after 1 year?
2. 2.A scooter is worth ₹58400. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
3. 3.A town has 17600 people. The population grows by 10% every year. What will the population be after 1 year?
4. 4.What amount will ₹4200 grow to in 2 years at 10% per year compound interest (in ₹)?
5. 5.A town has 34200 people. The population grows by 4% every year. What will the population be after 1 year?
6. 6.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).
7. 7.What is the difference between the compound interest and the simple interest on ₹57500 at 12% per year for 2 years (in ₹)?
8. 8.Find the compound interest on ₹31600 at 10% per year for 2 years, compounded every year (in ₹).
9. 9.What is the difference between the compound interest and the simple interest on ₹15000 at 4% per year for 2 years (in ₹)?
10. 10.A town has 12500 people. The population grows by 12% every year. What will the population be after 2 years?
11. 11.What amount will ₹24200 grow to in 1 year at 12% per year compound interest (in ₹)?
12. 12.What amount will ₹59100 grow to in 2 years at 10% per year compound interest (in ₹)?
13. 13.Find the compound interest on ₹52200 at 25% per year for 1 year, compounded every year (in ₹).
14. 14.What amount will ₹40000 grow to in 2 years at 4% per year compound interest (in ₹)?
15. 15.What amount will ₹10400 grow to in 1 year at 15% per year compound interest (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹27500 at 8% per year for 2 years (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹18100 at 10% per year for 2 years (in ₹)?
18. 18.What amount will ₹56000 grow to in 3 years at 5% per year compound interest (in ₹)?
19. 19.A town has 47700 people. The population grows by 10% every year. What will the population be after 1 year?
20. 20.A town has 36700 people. The population grows by 20% every year. What will the population be after 1 year?
21. 21.What amount will ₹46000 grow to in 2 years at 15% per year compound interest (in ₹)?
22. 22.A scooter is worth ₹21500. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
23. 23.A scooter is worth ₹16000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
24. 24.A town has 59300 people. The population grows by 4% every year. What will the population be after 1 year?
25. 25.Find the compound interest on ₹13000 at 10% per year for 3 years, compounded every year (in ₹).
26. 26.Find the compound interest on ₹41000 at 10% per year for 3 years, compounded every year (in ₹).
27. 27.A town has 7800 people. The population grows by 10% every year. What will the population be after 2 years?
28. 28.A town has 26200 people. The population grows by 8% every year. What will the population be after 1 year?
29. 29.What amount will ₹24400 grow to in 2 years at 25% per year compound interest (in ₹)?
30. 30.A town has 9000 people. The population grows by 10% every year. What will the population be after 3 years?
31. 31.Find the compound interest on ₹12500 at 20% per year for 3 years, compounded every year (in ₹).
32. 32.What is the difference between the compound interest and the simple interest on ₹40400 at 15% per year for 2 years (in ₹)?
33. 33.Find the compound interest on ₹56000 at 15% per year for 3 years, compounded every year (in ₹).
34. 34.What amount will ₹59200 grow to in 2 years at 20% per year compound interest (in ₹)?
35. 35.Find the compound interest on ₹53100 at 20% per year for 2 years, compounded every year (in ₹).
36. 36.What is the difference between the compound interest and the simple interest on ₹24800 at 20% per year for 2 years (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹55000 at 12% per year for 2 years (in ₹)?
38. 38.Find the compound interest on ₹29200 at 20% per year for 1 year, compounded every year (in ₹).
39. 39.Find the compound interest on ₹16000 at 20% per year for 3 years, compounded every year (in ₹).
40. 40.What amount will ₹26000 grow to in 2 years at 15% per year compound interest (in ₹)?

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