Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 478 · 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 ₹37500 at 12% per year for 2 years (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹7500 at 4% per year for 2 years (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹35200 at 5% per year for 2 years (in ₹)?
4. 4.What amount will ₹24800 grow to in 1 year at 10% per year compound interest (in ₹)?
5. 5.What amount will ₹60000 grow to in 2 years at 8% per year compound interest (in ₹)?
6. 6.A town has 57500 people. The population grows by 8% every year. What will the population be after 2 years?
7. 7.Find the compound interest on ₹7600 at 4% per year for 1 year, compounded every year (in ₹).
8. 8.Find the compound interest on ₹24000 at 15% per year for 3 years, compounded every year (in ₹).
9. 9.Find the compound interest on ₹4000 at 25% per year for 2 years, compounded every year (in ₹).
10. 10.What amount will ₹5400 grow to in 1 year at 4% per year compound interest (in ₹)?
11. 11.Find the compound interest on ₹56000 at 15% per year for 3 years, compounded every year (in ₹).
12. 12.What is the difference between the compound interest and the simple interest on ₹44000 at 5% per year for 2 years (in ₹)?
13. 13.What is the difference between the compound interest and the simple interest on ₹6800 at 15% per year for 2 years (in ₹)?
14. 14.What amount will ₹37500 grow to in 2 years at 8% per year compound interest (in ₹)?
15. 15.A scooter is worth ₹5600. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
16. 16.Find the compound interest on ₹59200 at 5% per year for 2 years, compounded every year (in ₹).
17. 17.Find the compound interest on ₹24800 at 10% per year for 1 year, compounded every year (in ₹).
18. 18.Find the compound interest on ₹25000 at 20% per year for 3 years, compounded every year (in ₹).
19. 19.A scooter is worth ₹49500. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
20. 20.A scooter is worth ₹37100. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹22500 at 4% per year for 2 years (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹54400 at 5% per year for 2 years (in ₹)?
23. 23.A scooter is worth ₹48000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
24. 24.What amount will ₹17900 grow to in 1 year at 8% per year compound interest (in ₹)?
25. 25.A town has 25600 people. The population grows by 15% every year. What will the population be after 2 years?
26. 26.A town has 15200 people. The population grows by 5% every year. What will the population be after 2 years?
27. 27.What is the difference between the compound interest and the simple interest on ₹10000 at 15% per year for 2 years (in ₹)?
28. 28.A scooter is worth ₹16800. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
29. 29.A scooter is worth ₹56400. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹52500 at 8% per year for 2 years (in ₹)?
31. 31.A town has 57600 people. The population grows by 15% every year. What will the population be after 2 years?
32. 32.Find the compound interest on ₹33600 at 25% per year for 2 years, compounded every year (in ₹).
33. 33.What is the difference between the compound interest and the simple interest on ₹32400 at 5% per year for 2 years (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹45000 at 8% per year for 2 years (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹50000 at 20% per year for 2 years (in ₹)?
36. 36.Find the compound interest on ₹59500 at 20% per year for 1 year, compounded every year (in ₹).
37. 37.Find the compound interest on ₹41900 at 20% per year for 2 years, compounded every year (in ₹).
38. 38.A scooter is worth ₹22500. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
39. 39.What amount will ₹37200 grow to in 1 year at 4% per year compound interest (in ₹)?
40. 40.Find the compound interest on ₹15000 at 15% per year for 1 year, compounded every year (in ₹).

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