Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 313 · 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 is the difference between the compound interest and the simple interest on ₹57500 at 12% per year for 2 years (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹21600 at 15% per year for 2 years (in ₹)?
3. 3.What amount will ₹58200 grow to in 2 years at 10% per year compound interest (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹33100 at 20% per year for 2 years (in ₹)?
5. 5.What amount will ₹49000 grow to in 3 years at 10% per year compound interest (in ₹)?
6. 6.What amount will ₹15000 grow to in 3 years at 20% per year compound interest (in ₹)?
7. 7.A town has 5000 people. The population grows by 12% every year. What will the population be after 2 years?
8. 8.Find the compound interest on ₹16000 at 15% per year for 3 years, compounded every year (in ₹).
9. 9.What is the difference between the compound interest and the simple interest on ₹18800 at 5% per year for 2 years (in ₹)?
10. 10.What amount will ₹6800 grow to in 1 year at 8% per year compound interest (in ₹)?
11. 11.What amount will ₹40000 grow to in 3 years at 15% per year compound interest (in ₹)?
12. 12.A town has 24600 people. The population grows by 10% every year. What will the population be after 2 years?
13. 13.Find the compound interest on ₹48000 at 5% per year for 3 years, compounded every year (in ₹).
14. 14.A town has 3400 people. The population grows by 5% every year. What will the population be after 1 year?
15. 15.A town has 50000 people. The population grows by 12% every year. What will the population be after 2 years?
16. 16.Find the compound interest on ₹49500 at 5% per year for 1 year, compounded every year (in ₹).
17. 17.Find the compound interest on ₹13000 at 10% per year for 3 years, compounded every year (in ₹).
18. 18.Find the compound interest on ₹17500 at 4% per year for 2 years, compounded every year (in ₹).
19. 19.What is the difference between the compound interest and the simple interest on ₹2800 at 25% per year for 2 years (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹25000 at 8% per year for 2 years (in ₹)?
21. 21.A town has 10000 people. The population grows by 25% every year. What will the population be after 2 years?
22. 22.Find the compound interest on ₹33600 at 25% per year for 2 years, compounded every year (in ₹).
23. 23.What amount will ₹24000 grow to in 3 years at 5% per year compound interest (in ₹)?
24. 24.Find the compound interest on ₹12500 at 8% per year for 2 years, compounded every year (in ₹).
25. 25.A town has 11900 people. The population grows by 10% every year. What will the population be after 1 year?
26. 26.What amount will ₹9100 grow to in 2 years at 10% per year compound interest (in ₹)?
27. 27.Find the compound interest on ₹32500 at 8% per year for 2 years, compounded every year (in ₹).
28. 28.What is the difference between the compound interest and the simple interest on ₹39300 at 10% per year for 2 years (in ₹)?
29. 29.Find the compound interest on ₹10000 at 12% per year for 2 years, compounded every year (in ₹).
30. 30.What amount will ₹15400 grow to in 1 year at 15% per year compound interest (in ₹)?
31. 31.Find the compound interest on ₹22400 at 8% per year for 1 year, compounded every year (in ₹).
32. 32.Find the compound interest on ₹32000 at 25% per year for 3 years, compounded every year (in ₹).
33. 33.What is the difference between the compound interest and the simple interest on ₹42500 at 4% per year for 2 years (in ₹)?
34. 34.What amount will ₹12500 grow to in 2 years at 4% per year compound interest (in ₹)?
35. 35.What amount will ₹31800 grow to in 1 year at 10% per year compound interest (in ₹)?
36. 36.A town has 60000 people. The population grows by 25% every year. What will the population be after 2 years?
37. 37.Find the compound interest on ₹56000 at 5% per year for 3 years, compounded every year (in ₹).
38. 38.What is the difference between the compound interest and the simple interest on ₹59300 at 20% per year for 2 years (in ₹)?
39. 39.What amount will ₹7600 grow to in 2 years at 5% per year compound interest (in ₹)?
40. 40.Find the compound interest on ₹41200 at 5% per year for 2 years, compounded every year (in ₹).

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