Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 649 · 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 ₹32300 grow to in 1 year at 8% per year compound interest (in ₹)?
2. 2.Find the compound interest on ₹52500 at 8% per year for 2 years, compounded every year (in ₹).
3. 3.What is the difference between the compound interest and the simple interest on ₹46800 at 20% per year for 2 years (in ₹)?
4. 4.Find the compound interest on ₹28300 at 20% per year for 2 years, compounded every year (in ₹).
5. 5.Find the compound interest on ₹37500 at 4% per year for 2 years, compounded every year (in ₹).
6. 6.Find the compound interest on ₹10000 at 15% per year for 2 years, compounded every year (in ₹).
7. 7.A town has 12000 people. The population grows by 15% every year. What will the population be after 2 years?
8. 8.What amount will ₹32000 grow to in 3 years at 15% per year compound interest (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹36000 at 10% per year for 2 years (in ₹)?
10. 10.Find the compound interest on ₹26700 at 10% per year for 2 years, compounded every year (in ₹).
11. 11.A scooter is worth ₹55200. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
12. 12.A town has 22300 people. The population grows by 25% every year. What will the population be after 1 year?
13. 13.What is the difference between the compound interest and the simple interest on ₹35700 at 20% per year for 2 years (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹32500 at 12% per year for 2 years (in ₹)?
15. 15.What amount will ₹58200 grow to in 1 year at 15% per year compound interest (in ₹)?
16. 16.Find the compound interest on ₹29400 at 25% per year for 1 year, compounded every year (in ₹).
17. 17.What is the difference between the compound interest and the simple interest on ₹32500 at 4% per year for 2 years (in ₹)?
18. 18.A town has 37000 people. The population grows by 10% every year. What will the population be after 3 years?
19. 19.What is the difference between the compound interest and the simple interest on ₹12500 at 12% per year for 2 years (in ₹)?
20. 20.What amount will ₹26400 grow to in 2 years at 20% per year compound interest (in ₹)?
21. 21.What amount will ₹40000 grow to in 3 years at 5% per year compound interest (in ₹)?
22. 22.A town has 2000 people. The population grows by 15% every year. What will the population be after 2 years?
23. 23.What amount will ₹21900 grow to in 1 year at 10% per year compound interest (in ₹)?
24. 24.What amount will ₹5300 grow to in 1 year at 8% per year compound interest (in ₹)?
25. 25.What amount will ₹25000 grow to in 3 years at 20% per year compound interest (in ₹)?
26. 26.Find the compound interest on ₹32000 at 5% per year for 3 years, compounded every year (in ₹).
27. 27.What amount will ₹37500 grow to in 1 year at 8% per year compound interest (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹43600 at 25% per year for 2 years (in ₹)?
29. 29.What amount will ₹34700 grow to in 1 year at 20% per year compound interest (in ₹)?
30. 30.Find the compound interest on ₹44800 at 15% per year for 2 years, compounded every year (in ₹).
31. 31.Find the compound interest on ₹52800 at 25% per year for 2 years, compounded every year (in ₹).
32. 32.What is the difference between the compound interest and the simple interest on ₹10000 at 4% per year for 2 years (in ₹)?
33. 33.Find the compound interest on ₹48800 at 15% per year for 2 years, compounded every year (in ₹).
34. 34.What amount will ₹49500 grow to in 3 years at 20% per year compound interest (in ₹)?
35. 35.A scooter is worth ₹11500. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
36. 36.Find the compound interest on ₹42500 at 4% per year for 2 years, compounded every year (in ₹).
37. 37.What amount will ₹38300 grow to in 1 year at 15% per year compound interest (in ₹)?
38. 38.A town has 29400 people. The population grows by 25% every year. What will the population be after 1 year?
39. 39.What is the difference between the compound interest and the simple interest on ₹38400 at 15% per year for 2 years (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹16000 at 5% per year for 2 years (in ₹)?

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