Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 187 · 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 ₹16000 at 15% per year for 3 years, compounded every year (in ₹).
2. 2.Find the compound interest on ₹40000 at 5% per year for 3 years, compounded every year (in ₹).
3. 3.Find the compound interest on ₹26900 at 10% per year for 1 year, compounded every year (in ₹).
4. 4.What amount will ₹10000 grow to in 2 years at 4% per year compound interest (in ₹)?
5. 5.What amount will ₹40000 grow to in 3 years at 5% per year compound interest (in ₹)?
6. 6.What amount will ₹26800 grow to in 2 years at 5% per year compound interest (in ₹)?
7. 7.A scooter is worth ₹3200. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
8. 8.What amount will ₹60000 grow to in 2 years at 8% per year compound interest (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹50000 at 4% per year for 2 years (in ₹)?
10. 10.A scooter is worth ₹7500. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
11. 11.Find the compound interest on ₹58300 at 25% per year for 1 year, compounded every year (in ₹).
12. 12.A scooter is worth ₹15000. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
13. 13.What amount will ₹50300 grow to in 1 year at 8% per year compound interest (in ₹)?
14. 14.Find the compound interest on ₹24200 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 ₹60000 at 8% per year for 2 years (in ₹)?
16. 16.Find the compound interest on ₹48000 at 5% per year for 3 years, compounded every year (in ₹).
17. 17.Find the compound interest on ₹50100 at 10% per year for 2 years, compounded every year (in ₹).
18. 18.A scooter is worth ₹11500. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
19. 19.What amount will ₹13000 grow to in 1 year at 4% per year compound interest (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹31500 at 10% per year for 2 years (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹23400 at 10% per year for 2 years (in ₹)?
22. 22.A town has 55000 people. The population grows by 4% every year. What will the population be after 2 years?
23. 23.What amount will ₹41800 grow to in 1 year at 12% per year compound interest (in ₹)?
24. 24.Find the compound interest on ₹29400 at 25% per year for 1 year, compounded every year (in ₹).
25. 25.Find the compound interest on ₹5000 at 12% per year for 2 years, compounded every year (in ₹).
26. 26.What amount will ₹42800 grow to in 1 year at 12% per year compound interest (in ₹)?
27. 27.Find the compound interest on ₹56000 at 25% per year for 3 years, compounded every year (in ₹).
28. 28.Find the compound interest on ₹3000 at 10% per year for 2 years, compounded every year (in ₹).
29. 29.Find the compound interest on ₹7700 at 8% per year for 1 year, compounded every year (in ₹).
30. 30.Find the compound interest on ₹5000 at 10% per year for 2 years, compounded every year (in ₹).
31. 31.Find the compound interest on ₹30700 at 4% per year for 1 year, compounded every year (in ₹).
32. 32.A scooter is worth ₹17500. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
33. 33.Find the compound interest on ₹24000 at 15% per year for 3 years, compounded every year (in ₹).
34. 34.What is the difference between the compound interest and the simple interest on ₹45000 at 8% per year for 2 years (in ₹)?
35. 35.What amount will ₹7500 grow to in 2 years at 4% per year compound interest (in ₹)?
36. 36.Find the compound interest on ₹37500 at 20% per year for 1 year, compounded every year (in ₹).
37. 37.Find the compound interest on ₹17900 at 20% per year for 2 years, compounded every year (in ₹).
38. 38.What is the difference between the compound interest and the simple interest on ₹32500 at 4% per year for 2 years (in ₹)?
39. 39.A town has 54000 people. The population grows by 10% every year. What will the population be after 3 years?
40. 40.What is the difference between the compound interest and the simple interest on ₹12800 at 5% per year for 2 years (in ₹)?

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