Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 730 · 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 ₹22800 at 25% per year for 2 years, compounded every year (in ₹).
2. 2.What is the difference between the compound interest and the simple interest on ₹17500 at 4% per year for 2 years (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹10800 at 25% per year for 2 years (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹10000 at 4% per year for 2 years (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹9600 at 5% per year for 2 years (in ₹)?
6. 6.What amount will ₹53200 grow to in 2 years at 5% per year compound interest (in ₹)?
7. 7.Find the compound interest on ₹4600 at 20% per year for 1 year, compounded every year (in ₹).
8. 8.A town has 3600 people. The population grows by 5% every year. What will the population be after 2 years?
9. 9.What amount will ₹50400 grow to in 2 years at 5% per year compound interest (in ₹)?
10. 10.What amount will ₹5000 grow to in 2 years at 12% per year compound interest (in ₹)?
11. 11.What amount will ₹27500 grow to in 2 years at 4% per year compound interest (in ₹)?
12. 12.What is the difference between the compound interest and the simple interest on ₹15000 at 8% per year for 2 years (in ₹)?
13. 13.A scooter is worth ₹37600. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
14. 14.Find the compound interest on ₹28000 at 10% per year for 3 years, compounded every year (in ₹).
15. 15.Find the compound interest on ₹14800 at 25% per year for 2 years, compounded every year (in ₹).
16. 16.What is the difference between the compound interest and the simple interest on ₹41700 at 20% per year for 2 years (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹47500 at 8% per year for 2 years (in ₹)?
18. 18.What amount will ₹36600 grow to in 1 year at 15% per year compound interest (in ₹)?
19. 19.A scooter is worth ₹8000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
20. 20.A town has 5000 people. The population grows by 12% every year. What will the population be after 2 years?
21. 21.Find the compound interest on ₹57500 at 12% per year for 2 years, compounded every year (in ₹).
22. 22.A town has 21100 people. The population grows by 20% every year. What will the population be after 1 year?
23. 23.Find the compound interest on ₹36100 at 25% per year for 1 year, compounded every year (in ₹).
24. 24.Find the compound interest on ₹11600 at 10% per year for 2 years, compounded every year (in ₹).
25. 25.A scooter is worth ₹16000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹8900 at 10% per year for 2 years (in ₹)?
27. 27.Find the compound interest on ₹58900 at 25% per year for 1 year, compounded every year (in ₹).
28. 28.What is the difference between the compound interest and the simple interest on ₹37500 at 12% per year for 2 years (in ₹)?
29. 29.A town has 8000 people. The population grows by 5% every year. What will the population be after 3 years?
30. 30.What amount will ₹50300 grow to in 1 year at 4% per year compound interest (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹30000 at 4% per year for 2 years (in ₹)?
32. 32.What amount will ₹45600 grow to in 2 years at 5% per year compound interest (in ₹)?
33. 33.What amount will ₹32000 grow to in 3 years at 5% per year compound interest (in ₹)?
34. 34.What amount will ₹8000 grow to in 3 years at 5% per year compound interest (in ₹)?
35. 35.Find the compound interest on ₹36400 at 25% per year for 2 years, compounded every year (in ₹).
36. 36.Find the compound interest on ₹2800 at 8% per year for 1 year, compounded every year (in ₹).
37. 37.Find the compound interest on ₹59600 at 8% per year for 1 year, compounded every year (in ₹).
38. 38.What amount will ₹40400 grow to in 1 year at 5% per year compound interest (in ₹)?
39. 39.Find the compound interest on ₹48800 at 10% per year for 1 year, compounded every year (in ₹).
40. 40.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?

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