Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 425 · 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 scooter is worth ₹22900. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
2. 2.What amount will ₹41200 grow to in 2 years at 25% per year compound interest (in ₹)?
3. 3.Find the compound interest on ₹13500 at 5% per year for 1 year, compounded every year (in ₹).
4. 4.What amount will ₹48000 grow to in 3 years at 5% per year compound interest (in ₹)?
5. 5.Find the compound interest on ₹48000 at 5% per year for 3 years, compounded every year (in ₹).
6. 6.What amount will ₹52400 grow to in 2 years at 5% per year compound interest (in ₹)?
7. 7.Find the compound interest on ₹10000 at 4% per year for 2 years, compounded every year (in ₹).
8. 8.Find the compound interest on ₹39000 at 10% per year for 3 years, compounded every year (in ₹).
9. 9.A scooter is worth ₹33200. Its value falls by 20% 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 ₹57200 at 10% per year for 2 years (in ₹)?
11. 11.What is the difference between the compound interest and the simple interest on ₹35400 at 20% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹60000 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 ₹18000 at 20% per year for 2 years (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹22400 at 15% per year for 2 years (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹15200 at 15% per year for 2 years (in ₹)?
16. 16.A scooter is worth ₹14000. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
17. 17.Find the compound interest on ₹42800 at 25% per year for 2 years, compounded every year (in ₹).
18. 18.What is the difference between the compound interest and the simple interest on ₹2500 at 12% per year for 2 years (in ₹)?
19. 19.A scooter is worth ₹27800. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
20. 20.Find the compound interest on ₹30000 at 4% per year for 2 years, compounded every year (in ₹).
21. 21.Find the compound interest on ₹47000 at 20% per year for 3 years, compounded every year (in ₹).
22. 22.What amount will ₹20800 grow to in 2 years at 5% per year compound interest (in ₹)?
23. 23.Find the compound interest on ₹48800 at 20% per year for 1 year, compounded every year (in ₹).
24. 24.A town has 47200 people. The population grows by 8% every year. What will the population be after 1 year?
25. 25.Find the compound interest on ₹27900 at 12% per year for 1 year, compounded every year (in ₹).
26. 26.Find the compound interest on ₹8000 at 12% per year for 1 year, compounded every year (in ₹).
27. 27.Find the compound interest on ₹12500 at 12% per year for 2 years, compounded every year (in ₹).
28. 28.What is the difference between the compound interest and the simple interest on ₹2500 at 4% per year for 2 years (in ₹)?
29. 29.Find the compound interest on ₹16400 at 20% per year for 1 year, compounded every year (in ₹).
30. 30.What is the difference between the compound interest and the simple interest on ₹36100 at 20% per year for 2 years (in ₹)?
31. 31.What amount will ₹20600 grow to in 1 year at 5% per year compound interest (in ₹)?
32. 32.What amount will ₹36000 grow to in 3 years at 10% per year compound interest (in ₹)?
33. 33.What amount will ₹52900 grow to in 1 year at 20% per year compound interest (in ₹)?
34. 34.Find the compound interest on ₹16000 at 5% per year for 3 years, compounded every year (in ₹).
35. 35.A town has 47300 people. The population grows by 10% every year. What will the population be after 1 year?
36. 36.What is the difference between the compound interest and the simple interest on ₹9200 at 25% per year for 2 years (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹7500 at 12% per year for 2 years (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹54000 at 5% per year for 2 years (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹2000 at 5% per year for 2 years (in ₹)?
40. 40.What amount will ₹13500 grow to in 1 year at 8% per year compound interest (in ₹)?

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