Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 109 · 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 scooter is worth ₹27900. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹15000 at 4% per year for 2 years (in ₹)?
3. 3.Find the compound interest on ₹16000 at 5% per year for 3 years, compounded every year (in ₹).
4. 4.What amount will ₹48900 grow to in 1 year at 12% per year compound interest (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹42500 at 8% per year for 2 years (in ₹)?
6. 6.What amount will ₹40200 grow to in 1 year at 4% per year compound interest (in ₹)?
7. 7.Find the compound interest on ₹7600 at 15% per year for 1 year, compounded every year (in ₹).
8. 8.What is the difference between the compound interest and the simple interest on ₹36000 at 5% per year for 2 years (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹8700 at 10% per year for 2 years (in ₹)?
10. 10.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
11. 11.What is the difference between the compound interest and the simple interest on ₹2500 at 12% per year for 2 years (in ₹)?
12. 12.What amount will ₹9400 grow to in 1 year at 8% per year compound interest (in ₹)?
13. 13.What is the difference between the compound interest and the simple interest on ₹26800 at 25% per year for 2 years (in ₹)?
14. 14.Find the compound interest on ₹20900 at 4% per year for 1 year, compounded every year (in ₹).
15. 15.What amount will ₹30000 grow to in 3 years at 10% per year compound interest (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹5300 at 10% per year for 2 years (in ₹)?
17. 17.Find the compound interest on ₹10000 at 12% per year for 2 years, compounded every year (in ₹).
18. 18.Find the compound interest on ₹57200 at 5% per year for 2 years, compounded every year (in ₹).
19. 19.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).
20. 20.What amount will ₹8000 grow to in 3 years at 10% per year compound interest (in ₹)?
21. 21.A town has 17600 people. The population grows by 25% every year. What will the population be after 3 years?
22. 22.What amount will ₹23800 grow to in 1 year at 4% per year compound interest (in ₹)?
23. 23.Find the compound interest on ₹23700 at 5% per year for 1 year, compounded every year (in ₹).
24. 24.Find the compound interest on ₹52800 at 25% per year for 2 years, compounded every year (in ₹).
25. 25.A town has 48000 people. The population grows by 5% every year. What will the population be after 3 years?
26. 26.What amount will ₹3200 grow to in 3 years at 25% per year compound interest (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹42500 at 12% per year for 2 years (in ₹)?
28. 28.A scooter is worth ₹49400. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
29. 29.What amount will ₹53200 grow to in 2 years at 15% per year compound interest (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹60000 at 8% per year for 2 years (in ₹)?
31. 31.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹56400 at 5% per year for 2 years (in ₹)?
33. 33.A scooter is worth ₹14300. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
34. 34.Find the compound interest on ₹52400 at 25% per year for 2 years, compounded every year (in ₹).
35. 35.A scooter is worth ₹33800. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
36. 36.What amount will ₹36400 grow to in 1 year at 4% per year compound interest (in ₹)?
37. 37.What amount will ₹49000 grow to in 3 years at 20% per year compound interest (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹57500 at 4% per year for 2 years (in ₹)?
39. 39.What amount will ₹10600 grow to in 2 years at 20% per year compound interest (in ₹)?
40. 40.Find the compound interest on ₹31500 at 20% per year for 3 years, compounded every year (in ₹).

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