Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 808 · 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 ₹11000 grow to in 2 years at 10% per year compound interest (in ₹)?
2. 2.What amount will ₹53500 grow to in 1 year at 10% per year compound interest (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹48000 at 15% per year for 2 years (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹7500 at 12% per year for 2 years (in ₹)?
5. 5.A scooter is worth ₹53600. Its value falls by 25% every year. What will it be worth after 2 years (in ₹)?
6. 6.A town has 15600 people. The population grows by 15% every year. What will the population be after 2 years?
7. 7.What is the difference between the compound interest and the simple interest on ₹10000 at 25% per year for 2 years (in ₹)?
8. 8.A town has 9300 people. The population grows by 10% every year. What will the population be after 2 years?
9. 9.What is the difference between the compound interest and the simple interest on ₹54000 at 5% per year for 2 years (in ₹)?
10. 10.What amount will ₹52300 grow to in 1 year at 5% per year compound interest (in ₹)?
11. 11.What amount will ₹11200 grow to in 2 years at 15% per year compound interest (in ₹)?
12. 12.A scooter is worth ₹12300. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
13. 13.What is the difference between the compound interest and the simple interest on ₹25000 at 8% per year for 2 years (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹27500 at 4% per year for 2 years (in ₹)?
15. 15.What amount will ₹5600 grow to in 2 years at 25% per year compound interest (in ₹)?
16. 16.What amount will ₹13900 grow to in 2 years at 10% per year compound interest (in ₹)?
17. 17.Find the compound interest on ₹44900 at 5% per year for 1 year, compounded every year (in ₹).
18. 18.What is the difference between the compound interest and the simple interest on ₹57500 at 12% per year for 2 years (in ₹)?
19. 19.Find the compound interest on ₹46400 at 25% per year for 3 years, compounded every year (in ₹).
20. 20.What amount will ₹48000 grow to in 3 years at 5% per year compound interest (in ₹)?
21. 21.A town has 16000 people. The population grows by 5% every year. What will the population be after 2 years?
22. 22.Find the compound interest on ₹24000 at 15% per year for 3 years, compounded every year (in ₹).
23. 23.Find the compound interest on ₹24200 at 15% per year for 1 year, compounded every year (in ₹).
24. 24.What is the difference between the compound interest and the simple interest on ₹29700 at 20% per year for 2 years (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹44300 at 10% per year for 2 years (in ₹)?
26. 26.Find the compound interest on ₹3400 at 12% per year for 1 year, compounded every year (in ₹).
27. 27.Find the compound interest on ₹20800 at 10% per year for 2 years, compounded every year (in ₹).
28. 28.What amount will ₹9000 grow to in 3 years at 20% per year compound interest (in ₹)?
29. 29.Find the compound interest on ₹36000 at 15% per year for 2 years, compounded every year (in ₹).
30. 30.What amount will ₹32800 grow to in 2 years at 25% per year compound interest (in ₹)?
31. 31.What amount will ₹49500 grow to in 1 year at 4% per year compound interest (in ₹)?
32. 32.Find the compound interest on ₹17200 at 25% per year for 2 years, compounded every year (in ₹).
33. 33.A town has 50400 people. The population grows by 15% every year. What will the population be after 2 years?
34. 34.What amount will ₹10100 grow to in 1 year at 15% per year compound interest (in ₹)?
35. 35.What amount will ₹12000 grow to in 1 year at 15% per year compound interest (in ₹)?
36. 36.What amount will ₹27500 grow to in 2 years at 12% per year compound interest (in ₹)?
37. 37.A town has 56000 people. The population grows by 10% every year. What will the population be after 3 years?
38. 38.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).
39. 39.Find the compound interest on ₹13400 at 5% per year for 1 year, compounded every year (in ₹).
40. 40.Find the compound interest on ₹8000 at 25% per year for 3 years, compounded every year (in ₹).

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