Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 827 · 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 scooter is worth ₹12500. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
2. 2.Find the compound interest on ₹11600 at 5% per year for 2 years, compounded every year (in ₹).
3. 3.What is the difference between the compound interest and the simple interest on ₹52400 at 5% per year for 2 years (in ₹)?
4. 4.Find the compound interest on ₹2000 at 5% per year for 2 years, compounded every year (in ₹).
5. 5.Find the compound interest on ₹47500 at 4% per year for 2 years, compounded every year (in ₹).
6. 6.A town has 44500 people. The population grows by 10% every year. What will the population be after 2 years?
7. 7.Find the compound interest on ₹16000 at 5% per year for 3 years, compounded every year (in ₹).
8. 8.What is the difference between the compound interest and the simple interest on ₹27800 at 20% per year for 2 years (in ₹)?
9. 9.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
10. 10.What amount will ₹23400 grow to in 1 year at 15% per year compound interest (in ₹)?
11. 11.A town has 36900 people. The population grows by 20% every year. What will the population be after 2 years?
12. 12.What amount will ₹7600 grow to in 2 years at 5% per year compound interest (in ₹)?
13. 13.A scooter is worth ₹48000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
14. 14.What amount will ₹32000 grow to in 3 years at 5% per year compound interest (in ₹)?
15. 15.Find the compound interest on ₹29700 at 25% per year for 1 year, compounded every year (in ₹).
16. 16.A scooter is worth ₹25500. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹47500 at 12% per year for 2 years (in ₹)?
18. 18.Find the compound interest on ₹58500 at 10% per year for 1 year, compounded every year (in ₹).
19. 19.Find the compound interest on ₹49600 at 25% per year for 3 years, compounded every year (in ₹).
20. 20.What amount will ₹44800 grow to in 2 years at 5% per year compound interest (in ₹)?
21. 21.What amount will ₹19500 grow to in 1 year at 12% per year compound interest (in ₹)?
22. 22.A scooter is worth ₹16000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
23. 23.A scooter is worth ₹19700. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
24. 24.A scooter is worth ₹28500. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
25. 25.Find the compound interest on ₹12800 at 20% per year for 2 years, compounded every year (in ₹).
26. 26.What is the difference between the compound interest and the simple interest on ₹42500 at 8% per year for 2 years (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹5000 at 4% per year for 2 years (in ₹)?
28. 28.Find the compound interest on ₹35000 at 12% per year for 2 years, compounded every year (in ₹).
29. 29.What is the difference between the compound interest and the simple interest on ₹23600 at 10% per year for 2 years (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹41200 at 10% per year for 2 years (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹37500 at 12% per year for 2 years (in ₹)?
32. 32.A town has 33500 people. The population grows by 4% every year. What will the population be after 1 year?
33. 33.What amount will ₹45000 grow to in 2 years at 4% per year compound interest (in ₹)?
34. 34.Find the compound interest on ₹12800 at 25% per year for 1 year, compounded every year (in ₹).
35. 35.Find the compound interest on ₹42200 at 20% per year for 1 year, compounded every year (in ₹).
36. 36.What amount will ₹30000 grow to in 3 years at 10% per year compound interest (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹53200 at 25% per year for 2 years (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹21200 at 15% per year for 2 years (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹38800 at 25% per year for 2 years (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹52400 at 10% per year for 2 years (in ₹)?

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