Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 559 · 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 5900 people. The population grows by 12% every year. What will the population be after 1 year?
2. 2.A town has 16000 people. The population grows by 5% every year. What will the population be after 3 years?
3. 3.What amount will ₹23300 grow to in 1 year at 8% per year compound interest (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹33700 at 10% per year for 2 years (in ₹)?
5. 5.What amount will ₹17600 grow to in 1 year at 20% per year compound interest (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹40400 at 5% per year for 2 years (in ₹)?
7. 7.What amount will ₹41100 grow to in 1 year at 12% per year compound interest (in ₹)?
8. 8.What amount will ₹10000 grow to in 2 years at 12% per year compound interest (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹54600 at 10% per year for 2 years (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹14800 at 15% per year for 2 years (in ₹)?
11. 11.Find the compound interest on ₹38500 at 10% per year for 1 year, compounded every year (in ₹).
12. 12.What amount will ₹7500 grow to in 2 years at 12% per year compound interest (in ₹)?
13. 13.Find the compound interest on ₹38300 at 12% per year for 1 year, compounded every year (in ₹).
14. 14.Find the compound interest on ₹32000 at 25% per year for 3 years, compounded every year (in ₹).
15. 15.Find the compound interest on ₹23600 at 20% per year for 1 year, compounded every year (in ₹).
16. 16.What amount will ₹40400 grow to in 1 year at 12% per year compound interest (in ₹)?
17. 17.What amount will ₹8000 grow to in 3 years at 15% per year compound interest (in ₹)?
18. 18.What amount will ₹13500 grow to in 1 year at 25% per year compound interest (in ₹)?
19. 19.What amount will ₹31300 grow to in 1 year at 5% per year compound interest (in ₹)?
20. 20.What amount will ₹48600 grow to in 1 year at 10% per year compound interest (in ₹)?
21. 21.Find the compound interest on ₹48400 at 12% per year for 1 year, compounded every year (in ₹).
22. 22.A scooter is worth ₹44700. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹33500 at 10% per year for 2 years (in ₹)?
24. 24.A scooter is worth ₹15900. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
25. 25.A town has 14200 people. The population grows by 8% every year. What will the population be after 1 year?
26. 26.Find the compound interest on ₹57200 at 10% per year for 2 years, compounded every year (in ₹).
27. 27.Find the compound interest on ₹13100 at 4% per year for 1 year, compounded every year (in ₹).
28. 28.Find the compound interest on ₹56000 at 15% per year for 3 years, compounded every year (in ₹).
29. 29.What amount will ₹31600 grow to in 1 year at 12% per year compound interest (in ₹)?
30. 30.Find the compound interest on ₹51000 at 10% per year for 3 years, compounded every year (in ₹).
31. 31.Find the compound interest on ₹52200 at 5% per year for 1 year, compounded every year (in ₹).
32. 32.What amount will ₹21600 grow to in 2 years at 25% per year compound interest (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹47500 at 8% per year for 2 years (in ₹)?
34. 34.Find the compound interest on ₹52000 at 20% per year for 3 years, compounded every year (in ₹).
35. 35.A scooter is worth ₹16000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
36. 36.A scooter is worth ₹30800. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
37. 37.What amount will ₹54500 grow to in 2 years at 10% per year compound interest (in ₹)?
38. 38.A scooter is worth ₹57800. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹52400 at 25% per year for 2 years (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹6800 at 5% per year for 2 years (in ₹)?

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