Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 833 · 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 ₹48800 grow to in 2 years at 25% per year compound interest (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹45200 at 10% per year for 2 years (in ₹)?
3. 3.A scooter is worth ₹46300. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹22800 at 15% per year for 2 years (in ₹)?
5. 5.What amount will ₹30000 grow to in 2 years at 12% per year compound interest (in ₹)?
6. 6.What amount will ₹28800 grow to in 2 years at 15% per year compound interest (in ₹)?
7. 7.What amount will ₹55700 grow to in 2 years at 10% per year compound interest (in ₹)?
8. 8.What is the difference between the compound interest and the simple interest on ₹30000 at 4% per year for 2 years (in ₹)?
9. 9.Find the compound interest on ₹49600 at 15% per year for 1 year, compounded every year (in ₹).
10. 10.A scooter is worth ₹32000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
11. 11.What is the difference between the compound interest and the simple interest on ₹45600 at 10% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹33000 at 20% per year for 2 years, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹54600 at 10% per year for 2 years (in ₹)?
14. 14.What amount will ₹10100 grow to in 1 year at 4% per year compound interest (in ₹)?
15. 15.A scooter is worth ₹27500. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
16. 16.A scooter is worth ₹60000. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
17. 17.What amount will ₹35100 grow to in 1 year at 5% per year compound interest (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹26000 at 15% per year for 2 years (in ₹)?
19. 19.What amount will ₹16800 grow to in 2 years at 10% per year compound interest (in ₹)?
20. 20.A town has 56000 people. The population grows by 5% every year. What will the population be after 3 years?
21. 21.Find the compound interest on ₹30000 at 15% per year for 1 year, compounded every year (in ₹).
22. 22.What is the difference between the compound interest and the simple interest on ₹17500 at 8% per year for 2 years (in ₹)?
23. 23.What amount will ₹6500 grow to in 3 years at 20% per year compound interest (in ₹)?
24. 24.Find the compound interest on ₹14400 at 25% per year for 1 year, compounded every year (in ₹).
25. 25.What amount will ₹5600 grow to in 1 year at 12% per year compound interest (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹38600 at 20% per year for 2 years (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹27500 at 8% per year for 2 years (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹22500 at 12% per year for 2 years (in ₹)?
29. 29.Find the compound interest on ₹36900 at 5% per year for 1 year, compounded every year (in ₹).
30. 30.What amount will ₹10400 grow to in 2 years at 25% per year compound interest (in ₹)?
31. 31.Find the compound interest on ₹6900 at 25% per year for 1 year, compounded every year (in ₹).
32. 32.A scooter is worth ₹32500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹6400 at 15% per year for 2 years (in ₹)?
34. 34.What amount will ₹59400 grow to in 1 year at 8% per year compound interest (in ₹)?
35. 35.Find the compound interest on ₹37600 at 5% per year for 2 years, compounded every year (in ₹).
36. 36.A scooter is worth ₹57100. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
37. 37.Find the compound interest on ₹48000 at 15% per year for 3 years, compounded every year (in ₹).
38. 38.What amount will ₹20000 grow to in 2 years at 4% per year compound interest (in ₹)?
39. 39.What amount will ₹54700 grow to in 1 year at 12% per year compound interest (in ₹)?
40. 40.What amount will ₹11200 grow to in 3 years at 25% per year compound interest (in ₹)?

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