Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 383 · 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 ₹16600 grow to in 1 year at 25% per year compound interest (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹48500 at 20% per year for 2 years (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹22500 at 4% per year for 2 years (in ₹)?
4. 4.A town has 37500 people. The population grows by 12% every year. What will the population be after 2 years?
5. 5.What is the difference between the compound interest and the simple interest on ₹47500 at 4% per year for 2 years (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹48300 at 10% per year for 2 years (in ₹)?
7. 7.What amount will ₹8600 grow to in 1 year at 10% per year compound interest (in ₹)?
8. 8.What amount will ₹48000 grow to in 3 years at 5% per year compound interest (in ₹)?
9. 9.What amount will ₹15400 grow to in 1 year at 15% per year compound interest (in ₹)?
10. 10.A town has 48600 people. The population grows by 10% every year. What will the population be after 1 year?
11. 11.What amount will ₹13300 grow to in 1 year at 5% per year compound interest (in ₹)?
12. 12.What amount will ₹12900 grow to in 1 year at 8% per year compound interest (in ₹)?
13. 13.What is the difference between the compound interest and the simple interest on ₹29900 at 10% per year for 2 years (in ₹)?
14. 14.Find the compound interest on ₹55700 at 10% per year for 1 year, compounded every year (in ₹).
15. 15.Find the compound interest on ₹44400 at 10% per year for 2 years, compounded every year (in ₹).
16. 16.What amount will ₹10000 grow to in 2 years at 8% per year compound interest (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹52000 at 5% per year for 2 years (in ₹)?
18. 18.What amount will ₹54000 grow to in 2 years at 5% per year compound interest (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹30000 at 15% per year for 2 years (in ₹)?
20. 20.Find the compound interest on ₹32600 at 10% per year for 1 year, compounded every year (in ₹).
21. 21.What is the difference between the compound interest and the simple interest on ₹6000 at 25% per year for 2 years (in ₹)?
22. 22.Find the compound interest on ₹8000 at 15% per year for 3 years, compounded every year (in ₹).
23. 23.What is the difference between the compound interest and the simple interest on ₹22600 at 10% per year for 2 years (in ₹)?
24. 24.Find the compound interest on ₹34400 at 20% per year for 1 year, compounded every year (in ₹).
25. 25.A town has 27600 people. The population grows by 15% every year. What will the population be after 2 years?
26. 26.A town has 45200 people. The population grows by 8% every year. What will the population be after 1 year?
27. 27.Find the compound interest on ₹28800 at 12% per year for 1 year, compounded every year (in ₹).
28. 28.A scooter is worth ₹54700. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
29. 29.A town has 6500 people. The population grows by 25% every year. What will the population be after 1 year?
30. 30.What is the difference between the compound interest and the simple interest on ₹10000 at 12% per year for 2 years (in ₹)?
31. 31.A scooter is worth ₹15200. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
32. 32.A town has 56600 people. The population grows by 15% every year. What will the population be after 1 year?
33. 33.Find the compound interest on ₹57600 at 25% per year for 3 years, compounded every year (in ₹).
34. 34.What amount will ₹52400 grow to in 2 years at 5% per year compound interest (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹54400 at 15% per year for 2 years (in ₹)?
36. 36.Find the compound interest on ₹52500 at 15% per year for 1 year, compounded every year (in ₹).
37. 37.What amount will ₹25900 grow to in 2 years at 10% per year compound interest (in ₹)?
38. 38.What amount will ₹58700 grow to in 1 year at 15% per year compound interest (in ₹)?
39. 39.What amount will ₹43500 grow to in 1 year at 8% per year compound interest (in ₹)?
40. 40.What amount will ₹32500 grow to in 2 years at 10% per year compound interest (in ₹)?

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