Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 862 · 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 ₹41900 at 5% per year for 1 year, compounded every year (in ₹).
2. 2.A town has 28000 people. The population grows by 10% every year. What will the population be after 2 years?
3. 3.A scooter is worth ₹34400. Its value falls by 8% 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 ₹60000 at 12% per year for 2 years (in ₹)?
5. 5.What amount will ₹56000 grow to in 3 years at 15% per year compound interest (in ₹)?
6. 6.What amount will ₹14800 grow to in 2 years at 5% per year compound interest (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹35000 at 4% per year for 2 years (in ₹)?
8. 8.What is the difference between the compound interest and the simple interest on ₹15900 at 20% per year for 2 years (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹10000 at 5% per year for 2 years (in ₹)?
10. 10.What amount will ₹40800 grow to in 1 year at 10% per year compound interest (in ₹)?
11. 11.Find the compound interest on ₹12900 at 25% per year for 1 year, compounded every year (in ₹).
12. 12.What amount will ₹44400 grow to in 2 years at 15% per year compound interest (in ₹)?
13. 13.What is the difference between the compound interest and the simple interest on ₹7600 at 15% per year for 2 years (in ₹)?
14. 14.A scooter is worth ₹54600. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
15. 15.Find the compound interest on ₹27000 at 10% per year for 1 year, compounded every year (in ₹).
16. 16.Find the compound interest on ₹11000 at 15% per year for 1 year, compounded every year (in ₹).
17. 17.A scooter is worth ₹33200. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
18. 18.Find the compound interest on ₹26900 at 10% per year for 1 year, compounded every year (in ₹).
19. 19.What amount will ₹4600 grow to in 1 year at 5% per year compound interest (in ₹)?
20. 20.Find the compound interest on ₹15000 at 4% per year for 2 years, compounded every year (in ₹).
21. 21.A scooter is worth ₹48000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
22. 22.What amount will ₹22900 grow to in 1 year at 10% per year compound interest (in ₹)?
23. 23.What amount will ₹27500 grow to in 2 years at 8% per year compound interest (in ₹)?
24. 24.A scooter is worth ₹14500. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
25. 25.What amount will ₹24000 grow to in 3 years at 15% per year compound interest (in ₹)?
26. 26.Find the compound interest on ₹20800 at 10% per year for 1 year, compounded every year (in ₹).
27. 27.What is the difference between the compound interest and the simple interest on ₹35200 at 15% per year for 2 years (in ₹)?
28. 28.Find the compound interest on ₹25000 at 12% per year for 2 years, compounded every year (in ₹).
29. 29.A town has 5900 people. The population grows by 10% every year. What will the population be after 2 years?
30. 30.What amount will ₹46800 grow to in 2 years at 15% per year compound interest (in ₹)?
31. 31.What amount will ₹59800 grow to in 2 years at 10% per year compound interest (in ₹)?
32. 32.What amount will ₹11000 grow to in 3 years at 20% per year compound interest (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹43200 at 5% per year for 2 years (in ₹)?
34. 34.A scooter is worth ₹12100. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
35. 35.Find the compound interest on ₹29200 at 25% per year for 2 years, compounded every year (in ₹).
36. 36.Find the compound interest on ₹28400 at 25% per year for 2 years, compounded every year (in ₹).
37. 37.What amount will ₹37500 grow to in 2 years at 12% per year compound interest (in ₹)?
38. 38.Find the compound interest on ₹40100 at 8% per year for 1 year, compounded every year (in ₹).
39. 39.What is the difference between the compound interest and the simple interest on ₹25000 at 4% per year for 2 years (in ₹)?
40. 40.Find the compound interest on ₹8400 at 25% per year for 2 years, compounded every year (in ₹).

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