Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 211 · 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 ₹32900 grow to in 1 year at 10% per year compound interest (in ₹)?
2. 2.A scooter is worth ₹35000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
3. 3.What amount will ₹52000 grow to in 1 year at 12% per year compound interest (in ₹)?
4. 4.Find the compound interest on ₹26400 at 5% per year for 2 years, compounded every year (in ₹).
5. 5.Find the compound interest on ₹43600 at 5% per year for 2 years, compounded every year (in ₹).
6. 6.A town has 16000 people. The population grows by 15% every year. What will the population be after 3 years?
7. 7.What is the difference between the compound interest and the simple interest on ₹43000 at 20% per year for 2 years (in ₹)?
8. 8.A scooter is worth ₹54400. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
9. 9.Find the compound interest on ₹5300 at 20% per year for 1 year, compounded every year (in ₹).
10. 10.Find the compound interest on ₹3600 at 8% per year for 1 year, compounded every year (in ₹).
11. 11.What is the difference between the compound interest and the simple interest on ₹13900 at 20% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹46400 at 8% per year for 1 year, compounded every year (in ₹).
13. 13.A scooter is worth ₹31400. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
14. 14.What amount will ₹12500 grow to in 2 years at 8% per year compound interest (in ₹)?
15. 15.What amount will ₹57500 grow to in 3 years at 20% per year compound interest (in ₹)?
16. 16.What amount will ₹55200 grow to in 2 years at 5% per year compound interest (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹7800 at 10% per year for 2 years (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹45600 at 15% per year for 2 years (in ₹)?
19. 19.What amount will ₹51200 grow to in 1 year at 4% per year compound interest (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹27500 at 12% per year for 2 years (in ₹)?
21. 21.Find the compound interest on ₹19000 at 25% per year for 1 year, compounded every year (in ₹).
22. 22.A scooter is worth ₹10900. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹2500 at 4% per year for 2 years (in ₹)?
24. 24.Find the compound interest on ₹45000 at 10% per year for 3 years, compounded every year (in ₹).
25. 25.Find the compound interest on ₹15000 at 12% per year for 2 years, compounded every year (in ₹).
26. 26.What is the difference between the compound interest and the simple interest on ₹27500 at 4% per year for 2 years (in ₹)?
27. 27.Find the compound interest on ₹16500 at 20% per year for 1 year, compounded every year (in ₹).
28. 28.What amount will ₹30000 grow to in 2 years at 4% per year compound interest (in ₹)?
29. 29.A scooter is worth ₹37900. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
30. 30.What amount will ₹56300 grow to in 1 year at 8% per year compound interest (in ₹)?
31. 31.What amount will ₹56000 grow to in 3 years at 15% per year compound interest (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹15000 at 12% per year for 2 years (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹8400 at 5% per year for 2 years (in ₹)?
34. 34.What amount will ₹54800 grow to in 1 year at 5% per year compound interest (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹9200 at 15% per year for 2 years (in ₹)?
36. 36.What amount will ₹5000 grow to in 3 years at 10% per year compound interest (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹43600 at 15% per year for 2 years (in ₹)?
38. 38.What amount will ₹4200 grow to in 2 years at 20% per year compound interest (in ₹)?
39. 39.Find the compound interest on ₹33200 at 20% per year for 1 year, compounded every year (in ₹).
40. 40.Find the compound interest on ₹54800 at 25% per year for 1 year, compounded every year (in ₹).

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