Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 616 · 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 ₹16000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
2. 2.Find the compound interest on ₹48000 at 5% per year for 3 years, compounded every year (in ₹).
3. 3.Find the compound interest on ₹40000 at 8% per year for 2 years, compounded every year (in ₹).
4. 4.What is the difference between the compound interest and the simple interest on ₹27500 at 4% per year for 2 years (in ₹)?
5. 5.What amount will ₹52200 grow to in 1 year at 10% per year compound interest (in ₹)?
6. 6.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
7. 7.What amount will ₹40800 grow to in 2 years at 20% per year compound interest (in ₹)?
8. 8.What is the difference between the compound interest and the simple interest on ₹12500 at 12% per year for 2 years (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹14000 at 25% per year for 2 years (in ₹)?
10. 10.What amount will ₹57700 grow to in 1 year at 8% per year compound interest (in ₹)?
11. 11.A town has 26800 people. The population grows by 5% every year. What will the population be after 2 years?
12. 12.Find the compound interest on ₹40600 at 10% per year for 1 year, compounded every year (in ₹).
13. 13.What amount will ₹34500 grow to in 1 year at 25% per year compound interest (in ₹)?
14. 14.A town has 51000 people. The population grows by 10% every year. What will the population be after 3 years?
15. 15.What is the difference between the compound interest and the simple interest on ₹57000 at 20% per year for 2 years (in ₹)?
16. 16.Find the compound interest on ₹24000 at 15% per year for 3 years, compounded every year (in ₹).
17. 17.A scooter is worth ₹49500. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
18. 18.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?
19. 19.Find the compound interest on ₹10500 at 20% per year for 3 years, compounded every year (in ₹).
20. 20.Find the compound interest on ₹28800 at 25% per year for 3 years, compounded every year (in ₹).
21. 21.What is the difference between the compound interest and the simple interest on ₹25600 at 25% per year for 2 years (in ₹)?
22. 22.A scooter is worth ₹27300. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹25000 at 12% per year for 2 years (in ₹)?
24. 24.Find the compound interest on ₹30000 at 10% per year for 3 years, compounded every year (in ₹).
25. 25.Find the compound interest on ₹17200 at 10% per year for 2 years, compounded every year (in ₹).
26. 26.A scooter is worth ₹3200. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
27. 27.A scooter is worth ₹40000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
28. 28.Find the compound interest on ₹42100 at 10% per year for 2 years, compounded every year (in ₹).
29. 29.What amount will ₹9300 grow to in 1 year at 4% per year compound interest (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹42600 at 20% per year for 2 years (in ₹)?
31. 31.Find the compound interest on ₹39700 at 10% per year for 2 years, compounded every year (in ₹).
32. 32.What is the difference between the compound interest and the simple interest on ₹42000 at 5% per year for 2 years (in ₹)?
33. 33.A town has 48000 people. The population grows by 15% every year. What will the population be after 3 years?
34. 34.A scooter is worth ₹31600. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
35. 35.A scooter is worth ₹52500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
36. 36.What amount will ₹37500 grow to in 2 years at 8% per year compound interest (in ₹)?
37. 37.Find the compound interest on ₹13600 at 5% per year for 2 years, compounded every year (in ₹).
38. 38.What amount will ₹8800 grow to in 1 year at 12% per year compound interest (in ₹)?
39. 39.Find the compound interest on ₹3200 at 5% per year for 2 years, compounded every year (in ₹).
40. 40.What is the difference between the compound interest and the simple interest on ₹24400 at 5% per year for 2 years (in ₹)?

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