Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 444 · 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 15% every year. What will the population be after 3 years?
2. 2.What amount will ₹15200 grow to in 1 year at 8% per year compound interest (in ₹)?
3. 3.A scooter is worth ₹27000. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
4. 4.What amount will ₹58000 grow to in 3 years at 10% per year compound interest (in ₹)?
5. 5.Find the compound interest on ₹8900 at 10% per year for 2 years, compounded every year (in ₹).
6. 6.What amount will ₹15600 grow to in 2 years at 5% per year compound interest (in ₹)?
7. 7.What amount will ₹19800 grow to in 1 year at 10% per year compound interest (in ₹)?
8. 8.What amount will ₹60000 grow to in 2 years at 8% per year compound interest (in ₹)?
9. 9.A scooter is worth ₹57700. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹15000 at 4% per year for 2 years (in ₹)?
11. 11.What amount will ₹10000 grow to in 2 years at 12% per year compound interest (in ₹)?
12. 12.Find the compound interest on ₹14800 at 25% per year for 2 years, compounded every year (in ₹).
13. 13.Find the compound interest on ₹30400 at 25% per year for 3 years, compounded every year (in ₹).
14. 14.Find the compound interest on ₹28200 at 5% per year for 1 year, compounded every year (in ₹).
15. 15.What is the difference between the compound interest and the simple interest on ₹50000 at 12% per year for 2 years (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹18400 at 25% per year for 2 years (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹52400 at 25% per year for 2 years (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹10200 at 10% per year for 2 years (in ₹)?
19. 19.A town has 44500 people. The population grows by 20% every year. What will the population be after 3 years?
20. 20.What is the difference between the compound interest and the simple interest on ₹5100 at 10% per year for 2 years (in ₹)?
21. 21.Find the compound interest on ₹49400 at 20% per year for 2 years, compounded every year (in ₹).
22. 22.What is the difference between the compound interest and the simple interest on ₹8000 at 25% per year for 2 years (in ₹)?
23. 23.Find the compound interest on ₹40000 at 5% per year for 3 years, compounded every year (in ₹).
24. 24.Find the compound interest on ₹55000 at 10% per year for 3 years, compounded every year (in ₹).
25. 25.Find the compound interest on ₹10000 at 12% per year for 2 years, compounded every year (in ₹).
26. 26.A town has 14200 people. The population grows by 10% every year. What will the population be after 2 years?
27. 27.What is the difference between the compound interest and the simple interest on ₹55000 at 8% per year for 2 years (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹56600 at 10% per year for 2 years (in ₹)?
29. 29.A town has 24000 people. The population grows by 5% every year. What will the population be after 3 years?
30. 30.What is the difference between the compound interest and the simple interest on ₹30000 at 15% per year for 2 years (in ₹)?
31. 31.What amount will ₹42500 grow to in 2 years at 4% per year compound interest (in ₹)?
32. 32.What amount will ₹12800 grow to in 2 years at 15% per year compound interest (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹17500 at 4% per year for 2 years (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹13600 at 25% per year for 2 years (in ₹)?
35. 35.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
36. 36.A scooter is worth ₹14500. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
37. 37.A scooter is worth ₹17000. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
38. 38.Find the compound interest on ₹50000 at 12% per year for 2 years, compounded every year (in ₹).
39. 39.Find the compound interest on ₹30000 at 25% per year for 1 year, compounded every year (in ₹).
40. 40.What is the difference between the compound interest and the simple interest on ₹38600 at 20% per year for 2 years (in ₹)?

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