Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 215 · 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 8000 people. The population grows by 5% every year. What will the population be after 3 years?
2. 2.What amount will ₹15200 grow to in 2 years at 5% per year compound interest (in ₹)?
3. 3.What amount will ₹17600 grow to in 2 years at 5% per year compound interest (in ₹)?
4. 4.Find the compound interest on ₹1600 at 25% per year for 3 years, compounded every year (in ₹).
5. 5.Find the compound interest on ₹23800 at 8% per year for 1 year, compounded every year (in ₹).
6. 6.Find the compound interest on ₹30000 at 12% per year for 2 years, compounded every year (in ₹).
7. 7.Find the compound interest on ₹37200 at 4% per year for 1 year, compounded every year (in ₹).
8. 8.What amount will ₹23600 grow to in 2 years at 15% per year compound interest (in ₹)?
9. 9.What amount will ₹10000 grow to in 2 years at 8% per year compound interest (in ₹)?
10. 10.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).
11. 11.What is the difference between the compound interest and the simple interest on ₹50000 at 4% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹26000 at 25% per year for 2 years, compounded every year (in ₹).
13. 13.What amount will ₹45700 grow to in 1 year at 25% per year compound interest (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹32000 at 25% per year for 2 years (in ₹)?
15. 15.What amount will ₹32100 grow to in 1 year at 25% per year compound interest (in ₹)?
16. 16.What amount will ₹8100 grow to in 1 year at 5% per year compound interest (in ₹)?
17. 17.Find the compound interest on ₹16000 at 25% per year for 3 years, compounded every year (in ₹).
18. 18.What amount will ₹7800 grow to in 1 year at 4% per year compound interest (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹41800 at 10% per year for 2 years (in ₹)?
20. 20.A scooter is worth ₹32600. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
21. 21.What amount will ₹51700 grow to in 2 years at 10% per year compound interest (in ₹)?
22. 22.What amount will ₹5600 grow to in 1 year at 12% per year compound interest (in ₹)?
23. 23.A scooter is worth ₹40800. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
24. 24.A town has 17500 people. The population grows by 12% every year. What will the population be after 2 years?
25. 25.A scooter is worth ₹2000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
26. 26.A scooter is worth ₹11200. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
27. 27.What amount will ₹2400 grow to in 1 year at 10% per year compound interest (in ₹)?
28. 28.A town has 27100 people. The population grows by 10% every year. What will the population be after 2 years?
29. 29.What is the difference between the compound interest and the simple interest on ₹30400 at 5% per year for 2 years (in ₹)?
30. 30.What amount will ₹59200 grow to in 2 years at 5% per year compound interest (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹12800 at 25% per year for 2 years (in ₹)?
32. 32.What amount will ₹56000 grow to in 1 year at 12% per year compound interest (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹34900 at 10% per year for 2 years (in ₹)?
34. 34.Find the compound interest on ₹45500 at 20% per year for 1 year, compounded every year (in ₹).
35. 35.What is the difference between the compound interest and the simple interest on ₹5000 at 12% per year for 2 years (in ₹)?
36. 36.What amount will ₹56000 grow to in 3 years at 15% per year compound interest (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹13200 at 5% per year for 2 years (in ₹)?
38. 38.What amount will ₹22800 grow to in 2 years at 5% per year compound interest (in ₹)?
39. 39.A town has 39600 people. The population grows by 10% every year. What will the population be after 1 year?
40. 40.A scooter is worth ₹16600. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?

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