Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 969 · 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 ₹58300 grow to in 1 year at 4% per year compound interest (in ₹)?
2. 2.A scooter is worth ₹10100. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
3. 3.Find the compound interest on ₹48000 at 25% per year for 2 years, compounded every year (in ₹).
4. 4.Find the compound interest on ₹10000 at 20% per year for 3 years, compounded every year (in ₹).
5. 5.What is the difference between the compound interest and the simple interest on ₹2800 at 15% per year for 2 years (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹35200 at 20% per year for 2 years (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹31200 at 20% per year for 2 years (in ₹)?
8. 8.A scooter is worth ₹23000. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
9. 9.A town has 54900 people. The population grows by 4% every year. What will the population be after 1 year?
10. 10.A town has 20900 people. The population grows by 12% every year. What will the population be after 1 year?
11. 11.Find the compound interest on ₹40000 at 20% per year for 1 year, compounded every year (in ₹).
12. 12.A scooter is worth ₹55900. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
13. 13.What amount will ₹50000 grow to in 2 years at 8% per year compound interest (in ₹)?
14. 14.Find the compound interest on ₹31700 at 25% per year for 1 year, compounded every year (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.A town has 12500 people. The population grows by 8% every year. What will the population be after 2 years?
17. 17.What amount will ₹30000 grow to in 2 years at 4% per year compound interest (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹14400 at 20% per year for 2 years (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹59500 at 10% per year for 2 years (in ₹)?
20. 20.A town has 24500 people. The population grows by 8% every year. What will the population be after 1 year?
21. 21.Find the compound interest on ₹52500 at 8% per year for 2 years, compounded every year (in ₹).
22. 22.What is the difference between the compound interest and the simple interest on ₹50800 at 5% per year for 2 years (in ₹)?
23. 23.What amount will ₹8300 grow to in 1 year at 4% per year compound interest (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹28000 at 5% per year for 2 years (in ₹)?
25. 25.What amount will ₹8000 grow to in 3 years at 5% per year compound interest (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹52000 at 5% per year for 2 years (in ₹)?
27. 27.Find the compound interest on ₹40000 at 15% per year for 3 years, compounded every year (in ₹).
28. 28.A town has 44000 people. The population grows by 20% every year. What will the population be after 3 years?
29. 29.What is the difference between the compound interest and the simple interest on ₹59900 at 10% per year for 2 years (in ₹)?
30. 30.What amount will ₹54000 grow to in 2 years at 5% per year compound interest (in ₹)?
31. 31.Find the compound interest on ₹47800 at 5% per year for 1 year, compounded every year (in ₹).
32. 32.Find the compound interest on ₹31500 at 20% per year for 3 years, compounded every year (in ₹).
33. 33.What is the difference between the compound interest and the simple interest on ₹14800 at 15% per year for 2 years (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹43800 at 10% per year for 2 years (in ₹)?
35. 35.Find the compound interest on ₹42200 at 5% per year for 1 year, compounded every year (in ₹).
36. 36.A scooter is worth ₹16600. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
37. 37.A town has 58400 people. The population grows by 20% every year. What will the population be after 2 years?
38. 38.What is the difference between the compound interest and the simple interest on ₹51500 at 20% per year for 2 years (in ₹)?
39. 39.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
40. 40.What is the difference between the compound interest and the simple interest on ₹4000 at 5% per year for 2 years (in ₹)?

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