Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 207 · 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 51100 people. The population grows by 4% every year. What will the population be after 1 year?
2. 2.What is the difference between the compound interest and the simple interest on ₹51600 at 5% per year for 2 years (in ₹)?
3. 3.Find the compound interest on ₹23000 at 20% per year for 3 years, compounded every year (in ₹).
4. 4.What is the difference between the compound interest and the simple interest on ₹6200 at 10% per year for 2 years (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹56000 at 25% per year for 2 years (in ₹)?
6. 6.Find the compound interest on ₹8000 at 25% per year for 3 years, compounded every year (in ₹).
7. 7.What amount will ₹24000 grow to in 3 years at 15% per year compound interest (in ₹)?
8. 8.Find the compound interest on ₹42500 at 4% per year for 2 years, compounded every year (in ₹).
9. 9.A scooter is worth ₹5300. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
10. 10.Find the compound interest on ₹12500 at 20% per year for 3 years, compounded every year (in ₹).
11. 11.Find the compound interest on ₹32000 at 5% per year for 3 years, compounded every year (in ₹).
12. 12.What amount will ₹3600 grow to in 2 years at 25% per year compound interest (in ₹)?
13. 13.A scooter is worth ₹19500. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
14. 14.A scooter is worth ₹6000. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹7500 at 12% per year for 2 years (in ₹)?
16. 16.Find the compound interest on ₹25000 at 4% per year for 2 years, compounded every year (in ₹).
17. 17.What amount will ₹42700 grow to in 1 year at 10% per year compound interest (in ₹)?
18. 18.Find the compound interest on ₹10600 at 8% per year for 1 year, compounded every year (in ₹).
19. 19.A town has 58000 people. The population grows by 10% every year. What will the population be after 3 years?
20. 20.A town has 32400 people. The population grows by 12% every year. What will the population be after 1 year?
21. 21.A scooter is worth ₹22500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
22. 22.A town has 22800 people. The population grows by 4% every year. What will the population be after 1 year?
23. 23.What amount will ₹46500 grow to in 1 year at 20% per year compound interest (in ₹)?
24. 24.A scooter is worth ₹44800. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
25. 25.A scooter is worth ₹32000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
26. 26.A scooter is worth ₹36900. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
27. 27.A town has 46000 people. The population grows by 25% every year. What will the population be after 2 years?
28. 28.Find the compound interest on ₹37500 at 4% per year for 2 years, compounded every year (in ₹).
29. 29.Find the compound interest on ₹48000 at 15% per year for 3 years, compounded every year (in ₹).
30. 30.What is the difference between the compound interest and the simple interest on ₹52400 at 15% per year for 2 years (in ₹)?
31. 31.A scooter is worth ₹16000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
32. 32.A scooter is worth ₹5000. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹5000 at 8% per year for 2 years (in ₹)?
34. 34.What amount will ₹4500 grow to in 1 year at 12% per year compound interest (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹12500 at 8% per year for 2 years (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹17600 at 5% per year for 2 years (in ₹)?
37. 37.Find the compound interest on ₹28900 at 10% per year for 1 year, compounded every year (in ₹).
38. 38.Find the compound interest on ₹21500 at 10% per year for 1 year, compounded every year (in ₹).
39. 39.What is the difference between the compound interest and the simple interest on ₹49100 at 20% per year for 2 years (in ₹)?
40. 40.What amount will ₹23800 grow to in 1 year at 10% per year compound interest (in ₹)?

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