Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 263 · 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 ₹25000 at 12% per year for 2 years, compounded every year (in ₹).
2. 2.A scooter is worth ₹35600. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
3. 3.What amount will ₹17500 grow to in 2 years at 8% per year compound interest (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹35000 at 12% per year for 2 years (in ₹)?
5. 5.What amount will ₹13100 grow to in 1 year at 25% per year compound interest (in ₹)?
6. 6.Find the compound interest on ₹36400 at 8% per year for 1 year, compounded every year (in ₹).
7. 7.A scooter is worth ₹42000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
8. 8.What is the difference between the compound interest and the simple interest on ₹26000 at 25% per year for 2 years (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹18100 at 10% per year for 2 years (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹23400 at 10% per year for 2 years (in ₹)?
11. 11.A scooter is worth ₹2900. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
12. 12.A town has 3200 people. The population grows by 25% every year. What will the population be after 3 years?
13. 13.A scooter is worth ₹58800. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
14. 14.A scooter is worth ₹14200. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
15. 15.A scooter is worth ₹25000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
16. 16.What amount will ₹40000 grow to in 3 years at 5% per year compound interest (in ₹)?
17. 17.Find the compound interest on ₹12500 at 10% per year for 2 years, compounded every year (in ₹).
18. 18.What is the difference between the compound interest and the simple interest on ₹17500 at 8% per year for 2 years (in ₹)?
19. 19.What amount will ₹49000 grow to in 3 years at 10% per year compound interest (in ₹)?
20. 20.Find the compound interest on ₹18000 at 8% per year for 1 year, compounded every year (in ₹).
21. 21.What is the difference between the compound interest and the simple interest on ₹8100 at 10% per year for 2 years (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹56000 at 25% per year for 2 years (in ₹)?
23. 23.What amount will ₹44200 grow to in 2 years at 20% per year compound interest (in ₹)?
24. 24.Find the compound interest on ₹16000 at 15% per year for 3 years, compounded every year (in ₹).
25. 25.What amount will ₹24000 grow to in 1 year at 15% per year compound interest (in ₹)?
26. 26.Find the compound interest on ₹31700 at 12% per year for 1 year, compounded every year (in ₹).
27. 27.What is the difference between the compound interest and the simple interest on ₹52800 at 25% per year for 2 years (in ₹)?
28. 28.Find the compound interest on ₹27000 at 20% per year for 2 years, compounded every year (in ₹).
29. 29.Find the compound interest on ₹26800 at 4% per year for 1 year, compounded every year (in ₹).
30. 30.What is the difference between the compound interest and the simple interest on ₹22500 at 8% per year for 2 years (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹27500 at 4% per year for 2 years (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹52500 at 12% per year for 2 years (in ₹)?
33. 33.Find the compound interest on ₹32000 at 5% per year for 3 years, compounded every year (in ₹).
34. 34.Find the compound interest on ₹39400 at 20% per year for 1 year, compounded every year (in ₹).
35. 35.What amount will ₹42500 grow to in 2 years at 4% per year compound interest (in ₹)?
36. 36.Find the compound interest on ₹10400 at 25% per year for 2 years, compounded every year (in ₹).
37. 37.Find the compound interest on ₹46400 at 8% per year for 1 year, compounded every year (in ₹).
38. 38.Find the compound interest on ₹5000 at 4% per year for 2 years, compounded every year (in ₹).
39. 39.What amount will ₹7700 grow to in 1 year at 20% per year compound interest (in ₹)?
40. 40.A town has 24000 people. The population grows by 5% every year. What will the population be after 3 years?

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