Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 104 · 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 28200 people. The population grows by 15% every year. What will the population be after 1 year?
2. 2.What amount will ₹42400 grow to in 2 years at 25% per year compound interest (in ₹)?
3. 3.Find the compound interest on ₹7200 at 5% per year for 2 years, compounded every year (in ₹).
4. 4.A scooter is worth ₹56000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
5. 5.What amount will ₹16500 grow to in 1 year at 15% per year compound interest (in ₹)?
6. 6.A scooter is worth ₹49600. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹7600 at 25% per year for 2 years (in ₹)?
8. 8.Find the compound interest on ₹2500 at 20% per year for 3 years, compounded every year (in ₹).
9. 9.What is the difference between the compound interest and the simple interest on ₹10000 at 4% per year for 2 years (in ₹)?
10. 10.Find the compound interest on ₹16000 at 20% per year for 3 years, compounded every year (in ₹).
11. 11.Find the compound interest on ₹37500 at 12% per year for 2 years, compounded every year (in ₹).
12. 12.What is the difference between the compound interest and the simple interest on ₹55600 at 5% per year for 2 years (in ₹)?
13. 13.Find the compound interest on ₹43900 at 15% per year for 1 year, compounded every year (in ₹).
14. 14.Find the compound interest on ₹36100 at 10% per year for 1 year, compounded every year (in ₹).
15. 15.What is the difference between the compound interest and the simple interest on ₹25200 at 5% per year for 2 years (in ₹)?
16. 16.Find the compound interest on ₹21200 at 8% per year for 1 year, compounded every year (in ₹).
17. 17.A scooter is worth ₹6800. Its value falls by 25% every year. What will it be worth after 2 years (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹10000 at 12% per year for 2 years (in ₹)?
19. 19.A scooter is worth ₹52800. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
20. 20.A scooter is worth ₹7700. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
21. 21.A scooter is worth ₹10000. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
22. 22.Find the compound interest on ₹59200 at 25% per year for 3 years, compounded every year (in ₹).
23. 23.What is the difference between the compound interest and the simple interest on ₹26900 at 20% per year for 2 years (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹13600 at 20% per year for 2 years (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹34400 at 25% per year for 2 years (in ₹)?
26. 26.Find the compound interest on ₹56300 at 8% per year for 1 year, compounded every year (in ₹).
27. 27.What amount will ₹39600 grow to in 2 years at 20% per year compound interest (in ₹)?
28. 28.Find the compound interest on ₹53600 at 25% per year for 2 years, compounded every year (in ₹).
29. 29.What amount will ₹29000 grow to in 1 year at 15% per year compound interest (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹26600 at 10% per year for 2 years (in ₹)?
31. 31.Find the compound interest on ₹32500 at 8% per year for 2 years, compounded every year (in ₹).
32. 32.What is the difference between the compound interest and the simple interest on ₹33900 at 10% per year for 2 years (in ₹)?
33. 33.Find the compound interest on ₹7500 at 4% per year for 2 years, compounded every year (in ₹).
34. 34.What amount will ₹28700 grow to in 1 year at 20% per year compound interest (in ₹)?
35. 35.A scooter is worth ₹22400. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹52400 at 25% per year for 2 years (in ₹)?
37. 37.A town has 10000 people. The population grows by 8% every year. What will the population be after 2 years?
38. 38.What amount will ₹58500 grow to in 2 years at 10% per year compound interest (in ₹)?
39. 39.Find the compound interest on ₹33500 at 5% per year for 1 year, compounded every year (in ₹).
40. 40.What is the difference between the compound interest and the simple interest on ₹59200 at 5% per year for 2 years (in ₹)?

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