Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 629 · 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 ₹2500 at 4% per year for 2 years (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹6400 at 5% per year for 2 years (in ₹)?
3. 3.Find the compound interest on ₹57100 at 15% per year for 1 year, compounded every year (in ₹).
4. 4.A town has 41100 people. The population grows by 10% every year. What will the population be after 1 year?
5. 5.Find the compound interest on ₹52700 at 4% per year for 1 year, compounded every year (in ₹).
6. 6.What is the difference between the compound interest and the simple interest on ₹39200 at 25% per year for 2 years (in ₹)?
7. 7.What amount will ₹57500 grow to in 2 years at 12% per year compound interest (in ₹)?
8. 8.Find the compound interest on ₹32500 at 12% per year for 2 years, compounded every year (in ₹).
9. 9.What is the difference between the compound interest and the simple interest on ₹36400 at 5% per year for 2 years (in ₹)?
10. 10.A scooter is worth ₹20800. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
11. 11.A town has 9800 people. The population grows by 20% every year. What will the population be after 1 year?
12. 12.Find the compound interest on ₹4500 at 10% per year for 2 years, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹20800 at 25% per year for 2 years (in ₹)?
14. 14.Find the compound interest on ₹32000 at 5% per year for 3 years, compounded every year (in ₹).
15. 15.Find the compound interest on ₹47700 at 25% per year for 1 year, compounded every year (in ₹).
16. 16.What is the difference between the compound interest and the simple interest on ₹5600 at 25% per year for 2 years (in ₹)?
17. 17.Find the compound interest on ₹28800 at 5% per year for 1 year, compounded every year (in ₹).
18. 18.Find the compound interest on ₹14400 at 15% per year for 2 years, compounded every year (in ₹).
19. 19.What is the difference between the compound interest and the simple interest on ₹48000 at 15% per year for 2 years (in ₹)?
20. 20.What amount will ₹40000 grow to in 3 years at 10% per year compound interest (in ₹)?
21. 21.Find the compound interest on ₹8000 at 15% per year for 3 years, compounded every year (in ₹).
22. 22.What amount will ₹13500 grow to in 2 years at 10% per year compound interest (in ₹)?
23. 23.Find the compound interest on ₹45200 at 25% per year for 2 years, compounded every year (in ₹).
24. 24.What is the difference between the compound interest and the simple interest on ₹14200 at 10% per year for 2 years (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹45000 at 4% per year for 2 years (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹7500 at 8% per year for 2 years (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹30000 at 8% per year for 2 years (in ₹)?
28. 28.What amount will ₹35000 grow to in 3 years at 10% per year compound interest (in ₹)?
29. 29.A scooter is worth ₹14800. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
30. 30.A town has 25400 people. The population grows by 10% every year. What will the population be after 1 year?
31. 31.Find the compound interest on ₹56000 at 5% per year for 3 years, compounded every year (in ₹).
32. 32.What amount will ₹40000 grow to in 2 years at 8% per year compound interest (in ₹)?
33. 33.What amount will ₹40400 grow to in 2 years at 15% per year compound interest (in ₹)?
34. 34.A scooter is worth ₹14500. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹24100 at 10% per year for 2 years (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹25000 at 12% per year for 2 years (in ₹)?
37. 37.Find the compound interest on ₹16100 at 10% per year for 2 years, compounded every year (in ₹).
38. 38.Find the compound interest on ₹44000 at 10% per year for 3 years, compounded every year (in ₹).
39. 39.What is the difference between the compound interest and the simple interest on ₹13600 at 5% per year for 2 years (in ₹)?
40. 40.Find the compound interest on ₹18800 at 15% per year for 2 years, compounded every year (in ₹).

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