Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 934 · 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 amount will ₹57000 grow to in 3 years at 10% per year compound interest (in ₹)?
2. 2.What amount will ₹38400 grow to in 2 years at 10% per year compound interest (in ₹)?
3. 3.Find the compound interest on ₹39200 at 25% per year for 2 years, compounded every year (in ₹).
4. 4.What amount will ₹8000 grow to in 3 years at 5% per year compound interest (in ₹)?
5. 5.What amount will ₹52800 grow to in 3 years at 25% per year compound interest (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹40400 at 15% per year for 2 years (in ₹)?
7. 7.A scooter is worth ₹13400. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
8. 8.What is the difference between the compound interest and the simple interest on ₹19200 at 20% per year for 2 years (in ₹)?
9. 9.A scooter is worth ₹43000. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹39600 at 5% per year for 2 years (in ₹)?
11. 11.Find the compound interest on ₹2500 at 4% per year for 2 years, compounded every year (in ₹).
12. 12.Find the compound interest on ₹54400 at 10% per year for 1 year, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹58900 at 20% per year for 2 years (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹58500 at 10% per year for 2 years (in ₹)?
15. 15.Find the compound interest on ₹57700 at 10% per year for 1 year, compounded every year (in ₹).
16. 16.Find the compound interest on ₹22500 at 8% per year for 2 years, compounded every year (in ₹).
17. 17.A town has 28000 people. The population grows by 25% every year. What will the population be after 2 years?
18. 18.Find the compound interest on ₹36200 at 25% per year for 1 year, compounded every year (in ₹).
19. 19.A scooter is worth ₹55300. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
20. 20.Find the compound interest on ₹25600 at 15% per year for 2 years, compounded every year (in ₹).
21. 21.A scooter is worth ₹37300. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
22. 22.What amount will ₹19700 grow to in 2 years at 10% per year compound interest (in ₹)?
23. 23.A scooter is worth ₹9300. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
24. 24.Find the compound interest on ₹58000 at 10% per year for 3 years, compounded every year (in ₹).
25. 25.What is the difference between the compound interest and the simple interest on ₹16000 at 25% per year for 2 years (in ₹)?
26. 26.A town has 3100 people. The population grows by 10% 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 ₹13900 at 20% per year for 2 years (in ₹)?
28. 28.Find the compound interest on ₹51000 at 20% per year for 3 years, compounded every year (in ₹).
29. 29.What is the difference between the compound interest and the simple interest on ₹8300 at 10% per year for 2 years (in ₹)?
30. 30.A town has 53000 people. The population grows by 10% every year. What will the population be after 3 years?
31. 31.A scooter is worth ₹20300. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
32. 32.What amount will ₹14400 grow to in 3 years at 25% per year compound interest (in ₹)?
33. 33.Find the compound interest on ₹57500 at 8% per year for 2 years, compounded every year (in ₹).
34. 34.Find the compound interest on ₹12500 at 12% per year for 2 years, compounded every year (in ₹).
35. 35.What amount will ₹4000 grow to in 2 years at 25% per year compound interest (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹45000 at 4% per year for 2 years (in ₹)?
37. 37.Find the compound interest on ₹13300 at 8% per year for 1 year, compounded every year (in ₹).
38. 38.What is the difference between the compound interest and the simple interest on ₹20700 at 10% per year for 2 years (in ₹)?
39. 39.Find the compound interest on ₹16000 at 15% per year for 3 years, compounded every year (in ₹).
40. 40.Find the compound interest on ₹19300 at 10% per year for 1 year, compounded every year (in ₹).

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