Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 795 · 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 ₹48500 at 20% per year for 2 years (in ₹)?
2. 2.What amount will ₹32600 grow to in 1 year at 4% per year compound interest (in ₹)?
3. 3.What amount will ₹10000 grow to in 2 years at 4% per year compound interest (in ₹)?
4. 4.A town has 50800 people. The population grows by 10% every year. What will the population be after 2 years?
5. 5.What amount will ₹13300 grow to in 1 year at 5% per year compound interest (in ₹)?
6. 6.A scooter is worth ₹5200. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
7. 7.A town has 8000 people. The population grows by 15% every year. What will the population be after 3 years?
8. 8.What is the difference between the compound interest and the simple interest on ₹23100 at 10% per year for 2 years (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹13300 at 20% per year for 2 years (in ₹)?
10. 10.What amount will ₹28800 grow to in 3 years at 25% per year compound interest (in ₹)?
11. 11.A town has 17600 people. The population grows by 8% every year. What will the population be after 1 year?
12. 12.What is the difference between the compound interest and the simple interest on ₹58900 at 10% per year for 2 years (in ₹)?
13. 13.A scooter is worth ₹53500. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
14. 14.A town has 29000 people. The population grows by 15% every year. What will the population be after 1 year?
15. 15.Find the compound interest on ₹5300 at 15% per year for 1 year, compounded every year (in ₹).
16. 16.What is the difference between the compound interest and the simple interest on ₹55400 at 20% per year for 2 years (in ₹)?
17. 17.What amount will ₹27900 grow to in 1 year at 8% per year compound interest (in ₹)?
18. 18.Find the compound interest on ₹52000 at 10% per year for 2 years, compounded every year (in ₹).
19. 19.What amount will ₹49000 grow to in 3 years at 20% per year compound interest (in ₹)?
20. 20.What amount will ₹10000 grow to in 2 years at 12% per year compound interest (in ₹)?
21. 21.Find the compound interest on ₹58000 at 25% per year for 2 years, compounded every year (in ₹).
22. 22.What is the difference between the compound interest and the simple interest on ₹8800 at 10% per year for 2 years (in ₹)?
23. 23.What amount will ₹56900 grow to in 2 years at 10% per year compound interest (in ₹)?
24. 24.Find the compound interest on ₹42500 at 12% per year for 2 years, compounded every year (in ₹).
25. 25.A town has 56700 people. The population grows by 4% every year. What will the population be after 1 year?
26. 26.What is the difference between the compound interest and the simple interest on ₹32000 at 5% per year for 2 years (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹22800 at 20% per year for 2 years (in ₹)?
28. 28.A scooter is worth ₹30000. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
29. 29.What amount will ₹52800 grow to in 2 years at 10% per year compound interest (in ₹)?
30. 30.Find the compound interest on ₹25000 at 12% per year for 2 years, compounded every year (in ₹).
31. 31.What amount will ₹10000 grow to in 3 years at 20% per year compound interest (in ₹)?
32. 32.Find the compound interest on ₹24000 at 15% per year for 3 years, compounded every year (in ₹).
33. 33.A town has 51200 people. The population grows by 25% every year. What will the population be after 2 years?
34. 34.Find the compound interest on ₹31200 at 20% per year for 2 years, compounded every year (in ₹).
35. 35.What is the difference between the compound interest and the simple interest on ₹35000 at 4% per year for 2 years (in ₹)?
36. 36.Find the compound interest on ₹15200 at 10% per year for 2 years, compounded every year (in ₹).
37. 37.Find the compound interest on ₹32000 at 5% per year for 3 years, compounded every year (in ₹).
38. 38.What amount will ₹22800 grow to in 2 years at 5% per year compound interest (in ₹)?
39. 39.Find the compound interest on ₹28700 at 8% per year for 1 year, compounded every year (in ₹).
40. 40.A scooter is worth ₹49000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?

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