Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 159 · 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 is the difference between the compound interest and the simple interest on ₹45200 at 25% per year for 2 years (in ₹)?
2. 2.Find the compound interest on ₹46400 at 10% per year for 1 year, compounded every year (in ₹).
3. 3.What is the difference between the compound interest and the simple interest on ₹7500 at 8% per year for 2 years (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹40000 at 4% per year for 2 years (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹50000 at 4% per year for 2 years (in ₹)?
6. 6.Find the compound interest on ₹30000 at 8% per year for 2 years, compounded every year (in ₹).
7. 7.What is the difference between the compound interest and the simple interest on ₹22000 at 15% per year for 2 years (in ₹)?
8. 8.Find the compound interest on ₹20000 at 4% per year for 2 years, compounded every year (in ₹).
9. 9.What amount will ₹41400 grow to in 1 year at 25% per year compound interest (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹53200 at 5% per year for 2 years (in ₹)?
11. 11.A scooter is worth ₹6000. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
12. 12.Find the compound interest on ₹7500 at 8% per year for 2 years, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹35700 at 20% per year for 2 years (in ₹)?
14. 14.Find the compound interest on ₹52400 at 15% per year for 2 years, compounded every year (in ₹).
15. 15.What amount will ₹43300 grow to in 1 year at 15% per year compound interest (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹27500 at 8% per year for 2 years (in ₹)?
17. 17.A town has 6400 people. The population grows by 15% every year. What will the population be after 2 years?
18. 18.A scooter is worth ₹5000. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
19. 19.What amount will ₹5400 grow to in 1 year at 25% per year compound interest (in ₹)?
20. 20.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹14400 at 5% per year for 2 years (in ₹)?
22. 22.A town has 41000 people. The population grows by 10% every year. What will the population be after 3 years?
23. 23.Find the compound interest on ₹56000 at 5% per year for 2 years, compounded every year (in ₹).
24. 24.Find the compound interest on ₹37600 at 5% per year for 1 year, compounded every year (in ₹).
25. 25.A scooter is worth ₹24600. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
26. 26.What amount will ₹52800 grow to in 2 years at 15% per year compound interest (in ₹)?
27. 27.Find the compound interest on ₹43600 at 25% per year for 1 year, compounded every year (in ₹).
28. 28.Find the compound interest on ₹12400 at 20% per year for 2 years, compounded every year (in ₹).
29. 29.A town has 48000 people. The population grows by 25% every year. What will the population be after 3 years?
30. 30.Find the compound interest on ₹41200 at 25% per year for 2 years, compounded every year (in ₹).
31. 31.A town has 32500 people. The population grows by 12% every year. What will the population be after 2 years?
32. 32.What amount will ₹8000 grow to in 3 years at 25% per year compound interest (in ₹)?
33. 33.What amount will ₹56200 grow to in 1 year at 10% per year compound interest (in ₹)?
34. 34.What amount will ₹12500 grow to in 2 years at 12% per year compound interest (in ₹)?
35. 35.Find the compound interest on ₹43100 at 10% per year for 2 years, compounded every year (in ₹).
36. 36.What amount will ₹59900 grow to in 1 year at 20% per year compound interest (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹17200 at 15% per year for 2 years (in ₹)?
38. 38.What amount will ₹45700 grow to in 1 year at 5% per year compound interest (in ₹)?
39. 39.What amount will ₹48400 grow to in 2 years at 15% per year compound interest (in ₹)?
40. 40.Find the compound interest on ₹7400 at 5% per year for 1 year, compounded every year (in ₹).

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