Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 537 · 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 53700 people. The population grows by 20% every year. What will the population be after 1 year?
2. 2.A town has 8000 people. The population grows by 15% every year. What will the population be after 3 years?
3. 3.Find the compound interest on ₹48000 at 15% per year for 3 years, compounded every year (in ₹).
4. 4.What is the difference between the compound interest and the simple interest on ₹5000 at 12% per year for 2 years (in ₹)?
5. 5.What amount will ₹56000 grow to in 3 years at 25% per year compound interest (in ₹)?
6. 6.What amount will ₹25800 grow to in 2 years at 20% per year compound interest (in ₹)?
7. 7.Find the compound interest on ₹10500 at 20% per year for 2 years, compounded every year (in ₹).
8. 8.A town has 39900 people. The population grows by 15% every year. What will the population be after 1 year?
9. 9.A scooter is worth ₹39800. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
10. 10.What amount will ₹45600 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 ₹7300 at 10% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹14500 at 4% per year for 1 year, compounded every year (in ₹).
13. 13.Find the compound interest on ₹18100 at 5% per year for 1 year, compounded every year (in ₹).
14. 14.A town has 26000 people. The population grows by 4% every year. What will the population be after 1 year?
15. 15.Find the compound interest on ₹23000 at 12% per year for 1 year, compounded every year (in ₹).
16. 16.What amount will ₹48900 grow to in 2 years at 10% per year compound interest (in ₹)?
17. 17.What amount will ₹32000 grow to in 3 years at 5% per year compound interest (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹52500 at 8% per year for 2 years (in ₹)?
19. 19.A scooter is worth ₹11500. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹50000 at 4% per year for 2 years (in ₹)?
21. 21.What amount will ₹4400 grow to in 1 year at 20% per year compound interest (in ₹)?
22. 22.What amount will ₹56000 grow to in 2 years at 25% per year compound interest (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹4700 at 20% per year for 2 years (in ₹)?
24. 24.Find the compound interest on ₹3000 at 8% per year for 1 year, compounded every year (in ₹).
25. 25.A scooter is worth ₹58600. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
26. 26.What amount will ₹11200 grow to in 2 years at 5% per year compound interest (in ₹)?
27. 27.What amount will ₹35100 grow to in 1 year at 4% per year compound interest (in ₹)?
28. 28.What amount will ₹22000 grow to in 3 years at 10% per year compound interest (in ₹)?
29. 29.What is the difference between the compound interest and the simple interest on ₹12500 at 12% per year for 2 years (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹60000 at 12% per year for 2 years (in ₹)?
31. 31.Find the compound interest on ₹36200 at 20% per year for 1 year, compounded every year (in ₹).
32. 32.A town has 24000 people. The population grows by 15% every year. What will the population be after 3 years?
33. 33.What amount will ₹56000 grow to in 3 years at 5% per year compound interest (in ₹)?
34. 34.A scooter is worth ₹21500. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
35. 35.Find the compound interest on ₹56500 at 25% per year for 1 year, compounded every year (in ₹).
36. 36.A scooter is worth ₹15000. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
37. 37.Find the compound interest on ₹17300 at 8% per year for 1 year, compounded every year (in ₹).
38. 38.A scooter is worth ₹12900. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
39. 39.A town has 40600 people. The population grows by 20% every year. What will the population be after 2 years?
40. 40.A scooter is worth ₹28200. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?

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