Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 428 · 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 57100 people. The population grows by 10% every year. What will the population be after 2 years?
2. 2.What amount will ₹8000 grow to in 3 years at 15% per year compound interest (in ₹)?
3. 3.What amount will ₹9400 grow to in 1 year at 20% per year compound interest (in ₹)?
4. 4.What amount will ₹28900 grow to in 1 year at 4% per year compound interest (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹11100 at 20% per year for 2 years (in ₹)?
6. 6.A scooter is worth ₹52400. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
7. 7.Find the compound interest on ₹13900 at 20% per year for 2 years, compounded every year (in ₹).
8. 8.A town has 24800 people. The population grows by 15% every year. What will the population be after 2 years?
9. 9.What amount will ₹4700 grow to in 1 year at 25% per year compound interest (in ₹)?
10. 10.What amount will ₹3500 grow to in 3 years at 20% per year compound interest (in ₹)?
11. 11.What amount will ₹56000 grow to in 3 years at 5% per year compound interest (in ₹)?
12. 12.A scooter is worth ₹56000. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
13. 13.Find the compound interest on ₹51500 at 15% per year for 1 year, compounded every year (in ₹).
14. 14.What is the difference between the compound interest and the simple interest on ₹46300 at 20% per year for 2 years (in ₹)?
15. 15.What amount will ₹17100 grow to in 1 year at 25% per year compound interest (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹21200 at 5% per year for 2 years (in ₹)?
17. 17.Find the compound interest on ₹48000 at 25% per year for 3 years, compounded every year (in ₹).
18. 18.What is the difference between the compound interest and the simple interest on ₹7500 at 12% per year for 2 years (in ₹)?
19. 19.What amount will ₹15000 grow to in 2 years at 12% per year compound interest (in ₹)?
20. 20.Find the compound interest on ₹9600 at 15% per year for 2 years, compounded every year (in ₹).
21. 21.Find the compound interest on ₹48400 at 15% per year for 2 years, compounded every year (in ₹).
22. 22.What amount will ₹44000 grow to in 1 year at 15% per year compound interest (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹42500 at 4% per year for 2 years (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹42400 at 25% per year for 2 years (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹5000 at 4% per year for 2 years (in ₹)?
26. 26.What amount will ₹7800 grow to in 1 year at 20% per year compound interest (in ₹)?
27. 27.What amount will ₹32000 grow to in 3 years at 5% per year compound interest (in ₹)?
28. 28.Find the compound interest on ₹32600 at 5% per year for 1 year, compounded every year (in ₹).
29. 29.What is the difference between the compound interest and the simple interest on ₹17500 at 8% per year for 2 years (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹35000 at 12% per year for 2 years (in ₹)?
31. 31.A town has 37000 people. The population grows by 10% every year. What will the population be after 3 years?
32. 32.A town has 33400 people. The population grows by 5% every year. What will the population be after 1 year?
33. 33.What amount will ₹14600 grow to in 1 year at 12% per year compound interest (in ₹)?
34. 34.A town has 50400 people. The population grows by 15% every year. What will the population be after 2 years?
35. 35.A town has 59000 people. The population grows by 10% every year. What will the population be after 3 years?
36. 36.Find the compound interest on ₹60000 at 12% per year for 2 years, compounded every year (in ₹).
37. 37.What is the difference between the compound interest and the simple interest on ₹10000 at 4% per year for 2 years (in ₹)?
38. 38.What amount will ₹12400 grow to in 1 year at 15% per year compound interest (in ₹)?
39. 39.Find the compound interest on ₹21600 at 4% per year for 1 year, compounded every year (in ₹).
40. 40.A town has 23800 people. The population grows by 25% every year. What will the population be after 1 year?

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