Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 23 · 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 ₹8000 grow to in 3 years at 5% per year compound interest (in ₹)?
2. 2.A town has 14200 people. The population grows by 10% every year. What will the population be after 1 year?
3. 3.A town has 17600 people. The population grows by 5% every year. What will the population be after 2 years?
4. 4.A scooter is worth ₹40600. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
5. 5.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).
6. 6.What amount will ₹19200 grow to in 1 year at 8% per year compound interest (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹20900 at 10% per year for 2 years (in ₹)?
8. 8.What is the difference between the compound interest and the simple interest on ₹25000 at 10% per year for 2 years (in ₹)?
9. 9.What amount will ₹15800 grow to in 1 year at 20% per year compound interest (in ₹)?
10. 10.A town has 26400 people. The population grows by 25% every year. What will the population be after 2 years?
11. 11.What amount will ₹7000 grow to in 2 years at 20% per year compound interest (in ₹)?
12. 12.Find the compound interest on ₹33600 at 15% per year for 2 years, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹49600 at 10% per year for 2 years (in ₹)?
14. 14.What amount will ₹52600 grow to in 1 year at 20% per year compound interest (in ₹)?
15. 15.What amount will ₹8400 grow to in 2 years at 25% per year compound interest (in ₹)?
16. 16.A town has 35000 people. The population grows by 20% every year. What will the population be after 3 years?
17. 17.Find the compound interest on ₹38000 at 5% per year for 1 year, compounded every year (in ₹).
18. 18.What amount will ₹41200 grow to in 2 years at 15% per year compound interest (in ₹)?
19. 19.Find the compound interest on ₹44400 at 5% per year for 2 years, compounded every year (in ₹).
20. 20.Find the compound interest on ₹5200 at 12% per year for 1 year, compounded every year (in ₹).
21. 21.A scooter is worth ₹11700. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
22. 22.Find the compound interest on ₹47500 at 8% per year for 2 years, compounded every year (in ₹).
23. 23.What amount will ₹37500 grow to in 2 years at 12% per year compound interest (in ₹)?
24. 24.Find the compound interest on ₹4000 at 5% per year for 2 years, compounded every year (in ₹).
25. 25.A scooter is worth ₹41200. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
26. 26.A town has 24400 people. The population grows by 20% every year. What will the population be after 2 years?
27. 27.A scooter is worth ₹7700. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹55400 at 10% per year for 2 years (in ₹)?
29. 29.What amount will ₹2200 grow to in 1 year at 12% per year compound interest (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹47600 at 25% per year for 2 years (in ₹)?
31. 31.A town has 40400 people. The population grows by 5% every year. What will the population be after 2 years?
32. 32.What is the difference between the compound interest and the simple interest on ₹18000 at 25% per year for 2 years (in ₹)?
33. 33.Find the compound interest on ₹53800 at 25% per year for 1 year, compounded every year (in ₹).
34. 34.What amount will ₹25600 grow to in 1 year at 4% per year compound interest (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹16100 at 20% per year for 2 years (in ₹)?
36. 36.Find the compound interest on ₹39900 at 5% per year for 1 year, compounded every year (in ₹).
37. 37.What amount will ₹48000 grow to in 3 years at 5% per year compound interest (in ₹)?
38. 38.Find the compound interest on ₹45200 at 20% per year for 1 year, compounded every year (in ₹).
39. 39.What amount will ₹56800 grow to in 2 years at 15% per year compound interest (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹8000 at 5% per year for 2 years (in ₹)?

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