Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 958 · 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 ₹4700 grow to in 1 year at 8% per year compound interest (in ₹)?
2. 2.A scooter is worth ₹55600. Its value falls by 25% every year. What will it be worth after 2 years (in ₹)?
3. 3.A scooter is worth ₹19800. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
4. 4.A scooter is worth ₹35100. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹15000 at 4% per year for 2 years (in ₹)?
6. 6.A scooter is worth ₹18000. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
7. 7.A scooter is worth ₹45000. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
8. 8.Find the compound interest on ₹24100 at 4% per year for 1 year, compounded every year (in ₹).
9. 9.What amount will ₹17500 grow to in 2 years at 4% per year compound interest (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹31600 at 20% per year for 2 years (in ₹)?
11. 11.A scooter is worth ₹33800. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
12. 12.A town has 51600 people. The population grows by 25% every year. What will the population be after 2 years?
13. 13.Find the compound interest on ₹55600 at 20% per year for 1 year, compounded every year (in ₹).
14. 14.Find the compound interest on ₹51100 at 12% per year for 1 year, compounded every year (in ₹).
15. 15.What amount will ₹47500 grow to in 2 years at 12% per year compound interest (in ₹)?
16. 16.Find the compound interest on ₹22900 at 12% per year for 1 year, compounded every year (in ₹).
17. 17.Find the compound interest on ₹10000 at 10% per year for 3 years, compounded every year (in ₹).
18. 18.Find the compound interest on ₹9000 at 10% per year for 3 years, compounded every year (in ₹).
19. 19.What is the difference between the compound interest and the simple interest on ₹17500 at 4% per year for 2 years (in ₹)?
20. 20.Find the compound interest on ₹13000 at 4% per year for 1 year, compounded every year (in ₹).
21. 21.Find the compound interest on ₹37600 at 15% per year for 2 years, compounded every year (in ₹).
22. 22.Find the compound interest on ₹52000 at 15% per year for 2 years, compounded every year (in ₹).
23. 23.What is the difference between the compound interest and the simple interest on ₹8900 at 20% per year for 2 years (in ₹)?
24. 24.What amount will ₹42700 grow to in 2 years at 20% per year compound interest (in ₹)?
25. 25.Find the compound interest on ₹18000 at 25% per year for 2 years, compounded every year (in ₹).
26. 26.What is the difference between the compound interest and the simple interest on ₹10000 at 12% per year for 2 years (in ₹)?
27. 27.What amount will ₹27500 grow to in 2 years at 12% per year compound interest (in ₹)?
28. 28.What amount will ₹48000 grow to in 3 years at 5% per year compound interest (in ₹)?
29. 29.What is the difference between the compound interest and the simple interest on ₹47600 at 5% per year for 2 years (in ₹)?
30. 30.Find the compound interest on ₹18500 at 12% per year for 1 year, compounded every year (in ₹).
31. 31.What is the difference between the compound interest and the simple interest on ₹18400 at 15% per year for 2 years (in ₹)?
32. 32.What amount will ₹34300 grow to in 2 years at 20% per year compound interest (in ₹)?
33. 33.A town has 19200 people. The population grows by 25% every year. What will the population be after 3 years?
34. 34.Find the compound interest on ₹55200 at 20% per year for 1 year, compounded every year (in ₹).
35. 35.A scooter is worth ₹30000. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
36. 36.Find the compound interest on ₹21600 at 25% per year for 2 years, compounded every year (in ₹).
37. 37.Find the compound interest on ₹16000 at 15% per year for 3 years, compounded every year (in ₹).
38. 38.Find the compound interest on ₹43200 at 25% per year for 3 years, compounded every year (in ₹).
39. 39.Find the compound interest on ₹2500 at 8% per year for 2 years, compounded every year (in ₹).
40. 40.What amount will ₹30000 grow to in 3 years at 10% per year compound interest (in ₹)?

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