Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 588 · 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 ₹19200 grow to in 3 years at 25% per year compound interest (in ₹)?
2. 2.Find the compound interest on ₹24400 at 25% per year for 2 years, compounded every year (in ₹).
3. 3.A scooter is worth ₹37500. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
4. 4.What amount will ₹54300 grow to in 1 year at 12% per year compound interest (in ₹)?
5. 5.A town has 59100 people. The population grows by 25% every year. What will the population be after 1 year?
6. 6.Find the compound interest on ₹29000 at 10% per year for 3 years, compounded every year (in ₹).
7. 7.A scooter is worth ₹33600. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
8. 8.Find the compound interest on ₹30400 at 25% per year for 2 years, compounded every year (in ₹).
9. 9.What amount will ₹32000 grow to in 3 years at 10% per year compound interest (in ₹)?
10. 10.What amount will ₹19100 grow to in 1 year at 12% per year compound interest (in ₹)?
11. 11.A town has 30000 people. The population grows by 4% every year. What will the population be after 2 years?
12. 12.What amount will ₹13400 grow to in 1 year at 5% per year compound interest (in ₹)?
13. 13.Find the compound interest on ₹6300 at 12% per year for 1 year, compounded every year (in ₹).
14. 14.What is the difference between the compound interest and the simple interest on ₹31000 at 10% per year for 2 years (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹23200 at 25% per year for 2 years (in ₹)?
16. 16.What amount will ₹7600 grow to in 2 years at 15% per year compound interest (in ₹)?
17. 17.Find the compound interest on ₹4000 at 10% per year for 3 years, compounded every year (in ₹).
18. 18.Find the compound interest on ₹16200 at 15% per year for 1 year, compounded every year (in ₹).
19. 19.What amount will ₹49000 grow to in 3 years at 10% per year compound interest (in ₹)?
20. 20.A scooter is worth ₹14000. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
21. 21.What amount will ₹32000 grow to in 3 years at 5% per year compound interest (in ₹)?
22. 22.Find the compound interest on ₹53400 at 8% per year for 1 year, compounded every year (in ₹).
23. 23.What amount will ₹21500 grow to in 1 year at 25% per year compound interest (in ₹)?
24. 24.What amount will ₹30800 grow to in 2 years at 25% per year compound interest (in ₹)?
25. 25.Find the compound interest on ₹50000 at 4% per year for 2 years, compounded every year (in ₹).
26. 26.Find the compound interest on ₹20000 at 4% per year for 2 years, compounded every year (in ₹).
27. 27.What is the difference between the compound interest and the simple interest on ₹57600 at 20% per year for 2 years (in ₹)?
28. 28.What amount will ₹59900 grow to in 1 year at 25% per year compound interest (in ₹)?
29. 29.What amount will ₹20500 grow to in 3 years at 20% per year compound interest (in ₹)?
30. 30.Find the compound interest on ₹36000 at 5% per year for 1 year, compounded every year (in ₹).
31. 31.A scooter is worth ₹52400. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
32. 32.Find the compound interest on ₹35000 at 10% per year for 3 years, compounded every year (in ₹).
33. 33.Find the compound interest on ₹33500 at 25% per year for 1 year, compounded every year (in ₹).
34. 34.What amount will ₹24000 grow to in 3 years at 5% per year compound interest (in ₹)?
35. 35.Find the compound interest on ₹48400 at 15% per year for 2 years, compounded every year (in ₹).
36. 36.A scooter is worth ₹7300. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
37. 37.A scooter is worth ₹42000. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
38. 38.Find the compound interest on ₹10400 at 25% per year for 2 years, compounded every year (in ₹).
39. 39.What is the difference between the compound interest and the simple interest on ₹15000 at 8% per year for 2 years (in ₹)?
40. 40.Find the compound interest on ₹32900 at 20% per year for 1 year, compounded every year (in ₹).

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