Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 583 · 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.A town has 46300 people. The population grows by 10% every year. What will the population be after 2 years?
2. 2.Find the compound interest on ₹7700 at 15% per year for 1 year, compounded every year (in ₹).
3. 3.Find the compound interest on ₹59900 at 5% per year for 1 year, compounded every year (in ₹).
4. 4.What is the difference between the compound interest and the simple interest on ₹16900 at 10% per year for 2 years (in ₹)?
5. 5.Find the compound interest on ₹3700 at 10% per year for 1 year, compounded every year (in ₹).
6. 6.What is the difference between the compound interest and the simple interest on ₹48800 at 10% per year for 2 years (in ₹)?
7. 7.What amount will ₹22500 grow to in 2 years at 8% per year compound interest (in ₹)?
8. 8.What amount will ₹28100 grow to in 2 years at 10% per year compound interest (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹56100 at 10% per year for 2 years (in ₹)?
10. 10.Find the compound interest on ₹26800 at 20% per year for 2 years, compounded every year (in ₹).
11. 11.A scooter is worth ₹25600. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
12. 12.What is the difference between the compound interest and the simple interest on ₹35600 at 15% per year for 2 years (in ₹)?
13. 13.Find the compound interest on ₹49700 at 5% per year for 1 year, compounded every year (in ₹).
14. 14.Find the compound interest on ₹16000 at 15% per year for 3 years, compounded every year (in ₹).
15. 15.Find the compound interest on ₹55100 at 8% per year for 1 year, compounded every year (in ₹).
16. 16.What is the difference between the compound interest and the simple interest on ₹2800 at 5% per year for 2 years (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹43600 at 20% per year for 2 years (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹33200 at 25% per year for 2 years (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹15000 at 12% per year for 2 years (in ₹)?
20. 20.Find the compound interest on ₹11200 at 25% per year for 3 years, compounded every year (in ₹).
21. 21.Find the compound interest on ₹17500 at 12% per year for 2 years, compounded every year (in ₹).
22. 22.A scooter is worth ₹55800. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
23. 23.What amount will ₹30000 grow to in 1 year at 15% per year compound interest (in ₹)?
24. 24.A town has 15900 people. The population grows by 8% every year. What will the population be after 1 year?
25. 25.Find the compound interest on ₹24000 at 5% per year for 2 years, compounded every year (in ₹).
26. 26.Find the compound interest on ₹32600 at 10% per year for 2 years, compounded every year (in ₹).
27. 27.What is the difference between the compound interest and the simple interest on ₹26800 at 25% per year for 2 years (in ₹)?
28. 28.A town has 28100 people. The population grows by 25% every year. What will the population be after 1 year?
29. 29.Find the compound interest on ₹34800 at 5% per year for 2 years, compounded every year (in ₹).
30. 30.Find the compound interest on ₹56000 at 8% per year for 1 year, compounded every year (in ₹).
31. 31.What amount will ₹4000 grow to in 3 years at 10% per year compound interest (in ₹)?
32. 32.A scooter is worth ₹56000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹2000 at 15% per year for 2 years (in ₹)?
34. 34.What amount will ₹8800 grow to in 2 years at 25% per year compound interest (in ₹)?
35. 35.Find the compound interest on ₹12000 at 5% per year for 2 years, compounded every year (in ₹).
36. 36.What amount will ₹56000 grow to in 3 years at 15% per year compound interest (in ₹)?
37. 37.A scooter is worth ₹25600. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹22000 at 10% per year for 2 years (in ₹)?
39. 39.A scooter is worth ₹2300. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
40. 40.A scooter is worth ₹58000. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?

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