Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 224 · 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.A town has 22500 people. The population grows by 8% every year. What will the population be after 2 years?
2. 2.What amount will ₹59200 grow to in 3 years at 25% per year compound interest (in ₹)?
3. 3.Find the compound interest on ₹36600 at 20% per year for 2 years, compounded every year (in ₹).
4. 4.Find the compound interest on ₹24300 at 12% per year for 1 year, compounded every year (in ₹).
5. 5.Find the compound interest on ₹8800 at 12% per year for 1 year, compounded every year (in ₹).
6. 6.A scooter is worth ₹59800. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹22500 at 12% per year for 2 years (in ₹)?
8. 8.A scooter is worth ₹33200. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
9. 9.What amount will ₹40100 grow to in 1 year at 12% per year compound interest (in ₹)?
10. 10.A town has 14800 people. The population grows by 15% every year. What will the population be after 2 years?
11. 11.What amount will ₹50100 grow to in 1 year at 25% per year compound interest (in ₹)?
12. 12.Find the compound interest on ₹19000 at 10% per year for 3 years, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹54400 at 25% per year for 2 years (in ₹)?
14. 14.A town has 50000 people. The population grows by 5% every year. What will the population be after 2 years?
15. 15.What is the difference between the compound interest and the simple interest on ₹58000 at 15% per year for 2 years (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹44400 at 5% per year for 2 years (in ₹)?
17. 17.What amount will ₹30800 grow to in 2 years at 5% per year compound interest (in ₹)?
18. 18.Find the compound interest on ₹52500 at 12% per year for 2 years, compounded every year (in ₹).
19. 19.What amount will ₹50000 grow to in 2 years at 4% per year compound interest (in ₹)?
20. 20.A town has 40800 people. The population grows by 25% every year. What will the population be after 2 years?
21. 21.What amount will ₹55000 grow to in 2 years at 12% per year compound interest (in ₹)?
22. 22.What amount will ₹10800 grow to in 2 years at 5% per year compound interest (in ₹)?
23. 23.A scooter is worth ₹6100. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹59600 at 5% per year for 2 years (in ₹)?
25. 25.What amount will ₹5000 grow to in 2 years at 8% per year compound interest (in ₹)?
26. 26.Find the compound interest on ₹55000 at 10% per year for 3 years, compounded every year (in ₹).
27. 27.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹48400 at 5% per year for 2 years (in ₹)?
29. 29.A town has 30400 people. The population grows by 25% every year. What will the population be after 2 years?
30. 30.Find the compound interest on ₹34800 at 25% per year for 1 year, compounded every year (in ₹).
31. 31.Find the compound interest on ₹5000 at 12% per year for 2 years, compounded every year (in ₹).
32. 32.What is the difference between the compound interest and the simple interest on ₹22500 at 4% per year for 2 years (in ₹)?
33. 33.Find the compound interest on ₹16800 at 25% per year for 2 years, compounded every year (in ₹).
34. 34.Find the compound interest on ₹57500 at 8% per year for 2 years, compounded every year (in ₹).
35. 35.A scooter is worth ₹32000. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹55000 at 12% per year for 2 years (in ₹)?
37. 37.What amount will ₹35000 grow to in 2 years at 10% per year compound interest (in ₹)?
38. 38.Find the compound interest on ₹21600 at 5% per year for 2 years, compounded every year (in ₹).
39. 39.What is the difference between the compound interest and the simple interest on ₹37500 at 4% per year for 2 years (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹13600 at 20% per year for 2 years (in ₹)?

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