Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 673 · 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 ₹6000 at 15% per year for 2 years, compounded every year (in ₹).
2. 2.Find the compound interest on ₹3000 at 20% per year for 3 years, compounded every year (in ₹).
3. 3.What amount will ₹20200 grow to in 1 year at 20% per year compound interest (in ₹)?
4. 4.A scooter is worth ₹4000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
5. 5.A town has 14000 people. The population grows by 10% every year. What will the population be after 1 year?
6. 6.Find the compound interest on ₹45500 at 15% per year for 1 year, compounded every year (in ₹).
7. 7.What amount will ₹45000 grow to in 3 years at 10% per year compound interest (in ₹)?
8. 8.What is the difference between the compound interest and the simple interest on ₹31200 at 5% per year for 2 years (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹57600 at 5% per year for 2 years (in ₹)?
10. 10.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).
11. 11.A scooter is worth ₹31700. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
12. 12.Find the compound interest on ₹40700 at 10% per year for 2 years, compounded every year (in ₹).
13. 13.A town has 40300 people. The population grows by 10% every year. What will the population be after 2 years?
14. 14.A scooter is worth ₹8000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
15. 15.What amount will ₹56000 grow to in 3 years at 5% per year compound interest (in ₹)?
16. 16.A town has 55200 people. The population grows by 25% every year. What will the population be after 2 years?
17. 17.What is the difference between the compound interest and the simple interest on ₹40000 at 12% per year for 2 years (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹12500 at 8% per year for 2 years (in ₹)?
19. 19.What amount will ₹16700 grow to in 1 year at 5% per year compound interest (in ₹)?
20. 20.Find the compound interest on ₹31600 at 5% per year for 2 years, compounded every year (in ₹).
21. 21.What is the difference between the compound interest and the simple interest on ₹10000 at 12% per year for 2 years (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹2400 at 5% per year for 2 years (in ₹)?
23. 23.A scooter is worth ₹10000. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹38800 at 5% per year for 2 years (in ₹)?
25. 25.What amount will ₹32300 grow to in 1 year at 5% per year compound interest (in ₹)?
26. 26.Find the compound interest on ₹44500 at 15% per year for 1 year, compounded every year (in ₹).
27. 27.Find the compound interest on ₹7000 at 5% per year for 1 year, compounded every year (in ₹).
28. 28.What is the difference between the compound interest and the simple interest on ₹29000 at 20% per year for 2 years (in ₹)?
29. 29.What is the difference between the compound interest and the simple interest on ₹44800 at 15% per year for 2 years (in ₹)?
30. 30.A town has 17900 people. The population grows by 10% every year. What will the population be after 2 years?
31. 31.What amount will ₹48000 grow to in 1 year at 15% per year compound interest (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹16000 at 5% per year for 2 years (in ₹)?
33. 33.Find the compound interest on ₹56000 at 5% per year for 3 years, compounded every year (in ₹).
34. 34.What amount will ₹6400 grow to in 3 years at 25% per year compound interest (in ₹)?
35. 35.A town has 8400 people. The population grows by 5% every year. What will the population be after 1 year?
36. 36.Find the compound interest on ₹16000 at 10% per year for 3 years, compounded every year (in ₹).
37. 37.Find the compound interest on ₹3100 at 15% per year for 1 year, compounded every year (in ₹).
38. 38.Find the compound interest on ₹12500 at 12% per year for 2 years, compounded every year (in ₹).
39. 39.What amount will ₹56600 grow to in 2 years at 10% per year compound interest (in ₹)?
40. 40.A town has 21500 people. The population grows by 25% every year. What will the population be after 1 year?

Free maths worksheets lessons, practice and worksheets at talentjr.in/maths-worksheets