Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 700 · 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 ₹42500 at 8% per year for 2 years, compounded every year (in ₹).
2. 2.Find the compound interest on ₹10000 at 20% per year for 3 years, compounded every year (in ₹).
3. 3.A town has 22700 people. The population grows by 10% every year. What will the population be after 2 years?
4. 4.A scooter is worth ₹48000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹37500 at 12% per year for 2 years (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹20000 at 5% per year for 2 years (in ₹)?
7. 7.Find the compound interest on ₹30400 at 10% per year for 1 year, compounded every year (in ₹).
8. 8.A town has 20000 people. The population grows by 20% every year. What will the population be after 2 years?
9. 9.What amount will ₹38000 grow to in 2 years at 25% per year compound interest (in ₹)?
10. 10.A scooter is worth ₹6900. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
11. 11.What is the difference between the compound interest and the simple interest on ₹52800 at 15% per year for 2 years (in ₹)?
12. 12.A town has 36800 people. The population grows by 25% every year. What will the population be after 2 years?
13. 13.A town has 11500 people. The population grows by 10% every year. What will the population be after 2 years?
14. 14.Find the compound interest on ₹23200 at 25% per year for 2 years, compounded every year (in ₹).
15. 15.A scooter is worth ₹45500. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹40000 at 5% per year for 2 years (in ₹)?
17. 17.A scooter is worth ₹41900. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹44400 at 25% per year for 2 years (in ₹)?
19. 19.What amount will ₹52500 grow to in 2 years at 4% per year compound interest (in ₹)?
20. 20.A town has 51100 people. The population grows by 10% every year. What will the population be after 2 years?
21. 21.Find the compound interest on ₹46400 at 5% per year for 1 year, compounded every year (in ₹).
22. 22.What is the difference between the compound interest and the simple interest on ₹36300 at 20% per year for 2 years (in ₹)?
23. 23.Find the compound interest on ₹31600 at 20% per year for 2 years, compounded every year (in ₹).
24. 24.What is the difference between the compound interest and the simple interest on ₹40900 at 10% per year for 2 years (in ₹)?
25. 25.Find the compound interest on ₹52500 at 4% per year for 2 years, compounded every year (in ₹).
26. 26.What amount will ₹6000 grow to in 1 year at 8% per year compound interest (in ₹)?
27. 27.What amount will ₹13900 grow to in 2 years at 20% per year compound interest (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹52500 at 8% per year for 2 years (in ₹)?
29. 29.Find the compound interest on ₹59200 at 15% per year for 2 years, compounded every year (in ₹).
30. 30.What amount will ₹18000 grow to in 3 years at 10% per year compound interest (in ₹)?
31. 31.What amount will ₹14000 grow to in 3 years at 10% per year compound interest (in ₹)?
32. 32.Find the compound interest on ₹35000 at 12% per year for 2 years, compounded every year (in ₹).
33. 33.A town has 55300 people. The population grows by 8% every year. What will the population be after 1 year?
34. 34.What amount will ₹32500 grow to in 2 years at 8% per year compound interest (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹53200 at 10% per year for 2 years (in ₹)?
36. 36.What amount will ₹50000 grow to in 2 years at 8% per year compound interest (in ₹)?
37. 37.A scooter is worth ₹8500. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
38. 38.A scooter is worth ₹8600. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
39. 39.What amount will ₹8000 grow to in 3 years at 5% per year compound interest (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹10400 at 5% per year for 2 years (in ₹)?

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