Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 479 · 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 ₹57500 at 8% per year for 2 years (in ₹)?
2. 2.Find the compound interest on ₹33000 at 10% per year for 3 years, compounded every year (in ₹).
3. 3.Find the compound interest on ₹32500 at 12% per year for 2 years, compounded every year (in ₹).
4. 4.A scooter is worth ₹56000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
5. 5.Find the compound interest on ₹53500 at 20% per year for 3 years, compounded every year (in ₹).
6. 6.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
7. 7.Find the compound interest on ₹40000 at 15% per year for 3 years, compounded every year (in ₹).
8. 8.What amount will ₹40400 grow to in 2 years at 25% per year compound interest (in ₹)?
9. 9.Find the compound interest on ₹9700 at 10% per year for 2 years, compounded every year (in ₹).
10. 10.What amount will ₹20900 grow to in 1 year at 20% per year compound interest (in ₹)?
11. 11.What is the difference between the compound interest and the simple interest on ₹35000 at 12% per year for 2 years (in ₹)?
12. 12.What amount will ₹17600 grow to in 2 years at 5% per year compound interest (in ₹)?
13. 13.Find the compound interest on ₹6800 at 15% per year for 2 years, compounded every year (in ₹).
14. 14.A town has 45400 people. The population grows by 10% every year. What will the population be after 1 year?
15. 15.What amount will ₹17200 grow to in 2 years at 10% per year compound interest (in ₹)?
16. 16.Find the compound interest on ₹24000 at 25% per year for 3 years, compounded every year (in ₹).
17. 17.Find the compound interest on ₹31300 at 10% per year for 1 year, compounded every year (in ₹).
18. 18.What is the difference between the compound interest and the simple interest on ₹23200 at 10% per year for 2 years (in ₹)?
19. 19.What amount will ₹2400 grow to in 1 year at 4% per year compound interest (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹7500 at 8% per year for 2 years (in ₹)?
21. 21.A scooter is worth ₹12000. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
22. 22.Find the compound interest on ₹40300 at 15% per year for 1 year, compounded every year (in ₹).
23. 23.What amount will ₹53200 grow to in 2 years at 25% per year compound interest (in ₹)?
24. 24.What amount will ₹49200 grow to in 2 years at 25% per year compound interest (in ₹)?
25. 25.A scooter is worth ₹5000. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
26. 26.What amount will ₹56400 grow to in 2 years at 5% per year compound interest (in ₹)?
27. 27.What amount will ₹32000 grow to in 3 years at 5% per year compound interest (in ₹)?
28. 28.A scooter is worth ₹7000. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
29. 29.A scooter is worth ₹17400. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹50800 at 25% per year for 2 years (in ₹)?
31. 31.Find the compound interest on ₹3200 at 25% per year for 3 years, compounded every year (in ₹).
32. 32.What amount will ₹40000 grow to in 3 years at 5% per year compound interest (in ₹)?
33. 33.What amount will ₹14500 grow to in 3 years at 20% per year compound interest (in ₹)?
34. 34.What amount will ₹48800 grow to in 2 years at 15% per year compound interest (in ₹)?
35. 35.A scooter is worth ₹40700. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
36. 36.What amount will ₹4800 grow to in 2 years at 15% per year compound interest (in ₹)?
37. 37.What amount will ₹44900 grow to in 2 years at 10% per year compound interest (in ₹)?
38. 38.Find the compound interest on ₹8000 at 15% per year for 3 years, compounded every year (in ₹).
39. 39.What is the difference between the compound interest and the simple interest on ₹27600 at 15% per year for 2 years (in ₹)?
40. 40.Find the compound interest on ₹13200 at 25% per year for 2 years, compounded every year (in ₹).

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