Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 748 · 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 ₹26500 at 25% per year for 1 year, compounded every year (in ₹).
2. 2.What is the difference between the compound interest and the simple interest on ₹15500 at 10% per year for 2 years (in ₹)?
3. 3.What amount will ₹58000 grow to in 2 years at 5% per year compound interest (in ₹)?
4. 4.Find the compound interest on ₹35600 at 12% per year for 1 year, compounded every year (in ₹).
5. 5.A town has 2000 people. The population grows by 20% every year. What will the population be after 3 years?
6. 6.What is the difference between the compound interest and the simple interest on ₹49700 at 20% per year for 2 years (in ₹)?
7. 7.Find the compound interest on ₹16500 at 12% per year for 1 year, compounded every year (in ₹).
8. 8.What amount will ₹10700 grow to in 1 year at 4% per year compound interest (in ₹)?
9. 9.Find the compound interest on ₹12200 at 12% per year for 1 year, compounded every year (in ₹).
10. 10.What is the difference between the compound interest and the simple interest on ₹57500 at 8% per year for 2 years (in ₹)?
11. 11.A scooter is worth ₹12800. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
12. 12.Find the compound interest on ₹40100 at 5% per year for 1 year, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹55600 at 5% per year for 2 years (in ₹)?
14. 14.A town has 59200 people. The population grows by 15% every year. What will the population be after 2 years?
15. 15.Find the compound interest on ₹50500 at 10% per year for 2 years, compounded every year (in ₹).
16. 16.Find the compound interest on ₹5000 at 12% per year for 2 years, compounded every year (in ₹).
17. 17.Find the compound interest on ₹8300 at 20% per year for 2 years, compounded every year (in ₹).
18. 18.What is the difference between the compound interest and the simple interest on ₹56800 at 20% per year for 2 years (in ₹)?
19. 19.Find the compound interest on ₹15000 at 25% per year for 1 year, compounded every year (in ₹).
20. 20.Find the compound interest on ₹12400 at 4% per year for 1 year, compounded every year (in ₹).
21. 21.What is the difference between the compound interest and the simple interest on ₹46000 at 5% per year for 2 years (in ₹)?
22. 22.Find the compound interest on ₹42800 at 15% per year for 1 year, compounded every year (in ₹).
23. 23.What is the difference between the compound interest and the simple interest on ₹18400 at 5% per year for 2 years (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹50900 at 20% per year for 2 years (in ₹)?
25. 25.Find the compound interest on ₹45000 at 15% per year for 1 year, compounded every year (in ₹).
26. 26.What is the difference between the compound interest and the simple interest on ₹37200 at 15% per year for 2 years (in ₹)?
27. 27.Find the compound interest on ₹45000 at 20% per year for 3 years, compounded every year (in ₹).
28. 28.Find the compound interest on ₹40000 at 5% per year for 3 years, compounded every year (in ₹).
29. 29.A scooter is worth ₹20000. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
30. 30.What amount will ₹34000 grow to in 3 years at 10% per year compound interest (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹17700 at 10% per year for 2 years (in ₹)?
32. 32.What amount will ₹14800 grow to in 1 year at 25% per year compound interest (in ₹)?
33. 33.Find the compound interest on ₹42400 at 15% per year for 2 years, compounded every year (in ₹).
34. 34.What amount will ₹19800 grow to in 1 year at 12% per year compound interest (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹40000 at 4% per year for 2 years (in ₹)?
36. 36.Find the compound interest on ₹30100 at 10% per year for 1 year, compounded every year (in ₹).
37. 37.A scooter is worth ₹22500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹29200 at 15% per year for 2 years (in ₹)?
39. 39.What amount will ₹10000 grow to in 2 years at 4% per year compound interest (in ₹)?
40. 40.What amount will ₹50600 grow to in 1 year at 12% per year compound interest (in ₹)?

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