Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 768 · 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.Find the compound interest on ₹60000 at 12% per year for 2 years, compounded every year (in ₹).
2. 2.What amount will ₹38100 grow to in 1 year at 10% per year compound interest (in ₹)?
3. 3.Find the compound interest on ₹20000 at 4% per year for 1 year, compounded every year (in ₹).
4. 4.What is the difference between the compound interest and the simple interest on ₹44800 at 20% per year for 2 years (in ₹)?
5. 5.What amount will ₹9300 grow to in 1 year at 15% per year compound interest (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹43100 at 10% per year for 2 years (in ₹)?
7. 7.What amount will ₹60000 grow to in 1 year at 4% per year compound interest (in ₹)?
8. 8.A scooter is worth ₹48000. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
9. 9.Find the compound interest on ₹20000 at 20% per year for 3 years, compounded every year (in ₹).
10. 10.A scooter is worth ₹45000. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
11. 11.A town has 2500 people. The population grows by 8% every year. What will the population be after 2 years?
12. 12.What amount will ₹8000 grow to in 3 years at 5% per year compound interest (in ₹)?
13. 13.What is the difference between the compound interest and the simple interest on ₹50000 at 15% per year for 2 years (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹15000 at 12% per year for 2 years (in ₹)?
15. 15.Find the compound interest on ₹14400 at 25% per year for 3 years, compounded every year (in ₹).
16. 16.Find the compound interest on ₹25000 at 12% per year for 1 year, compounded every year (in ₹).
17. 17.What amount will ₹29700 grow to in 1 year at 5% per year compound interest (in ₹)?
18. 18.A scooter is worth ₹3000. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
19. 19.Find the compound interest on ₹15600 at 25% per year for 2 years, compounded every year (in ₹).
20. 20.What amount will ₹56000 grow to in 3 years at 5% per year compound interest (in ₹)?
21. 21.Find the compound interest on ₹38600 at 20% per year for 1 year, compounded every year (in ₹).
22. 22.A scooter is worth ₹54900. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
23. 23.Find the compound interest on ₹27500 at 4% per year for 2 years, compounded every year (in ₹).
24. 24.What amount will ₹34700 grow to in 2 years at 20% per year compound interest (in ₹)?
25. 25.What amount will ₹51000 grow to in 2 years at 20% per year compound interest (in ₹)?
26. 26.A town has 11700 people. The population grows by 25% every year. What will the population be after 1 year?
27. 27.Find the compound interest on ₹18300 at 8% per year for 1 year, compounded every year (in ₹).
28. 28.What is the difference between the compound interest and the simple interest on ₹58800 at 15% per year for 2 years (in ₹)?
29. 29.Find the compound interest on ₹40100 at 20% per year for 1 year, compounded every year (in ₹).
30. 30.What amount will ₹27000 grow to in 1 year at 5% per year compound interest (in ₹)?
31. 31.Find the compound interest on ₹27000 at 10% per year for 3 years, compounded every year (in ₹).
32. 32.What is the difference between the compound interest and the simple interest on ₹55000 at 8% per year for 2 years (in ₹)?
33. 33.What amount will ₹29000 grow to in 3 years at 10% per year compound interest (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹2500 at 12% per year for 2 years (in ₹)?
35. 35.Find the compound interest on ₹21100 at 5% per year for 1 year, compounded every year (in ₹).
36. 36.A scooter is worth ₹20700. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹6400 at 25% per year for 2 years (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹58000 at 5% per year for 2 years (in ₹)?
39. 39.A town has 30900 people. The population grows by 10% every year. What will the population be after 1 year?
40. 40.What is the difference between the compound interest and the simple interest on ₹25000 at 12% per year for 2 years (in ₹)?

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