Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 227 · 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 ₹13200 at 5% per year for 1 year, compounded every year (in ₹).
2. 2.A scooter is worth ₹16000. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹28800 at 5% per year for 2 years (in ₹)?
4. 4.Find the compound interest on ₹44800 at 25% per year for 2 years, compounded every year (in ₹).
5. 5.What is the difference between the compound interest and the simple interest on ₹37500 at 8% per year for 2 years (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹55000 at 8% per year for 2 years (in ₹)?
7. 7.Find the compound interest on ₹15000 at 8% per year for 2 years, compounded every year (in ₹).
8. 8.Find the compound interest on ₹37500 at 4% per year for 1 year, compounded every year (in ₹).
9. 9.A town has 7400 people. The population grows by 20% every year. What will the population be after 1 year?
10. 10.What amount will ₹20000 grow to in 1 year at 10% per year compound interest (in ₹)?
11. 11.What amount will ₹49000 grow to in 1 year at 10% per year compound interest (in ₹)?
12. 12.What is the difference between the compound interest and the simple interest on ₹7500 at 4% per year for 2 years (in ₹)?
13. 13.What is the difference between the compound interest and the simple interest on ₹6800 at 15% per year for 2 years (in ₹)?
14. 14.Find the compound interest on ₹26000 at 5% per year for 2 years, compounded every year (in ₹).
15. 15.A town has 17900 people. The population grows by 15% every year. What will the population be after 1 year?
16. 16.What amount will ₹18700 grow to in 1 year at 4% per year compound interest (in ₹)?
17. 17.What amount will ₹38400 grow to in 3 years at 25% per year compound interest (in ₹)?
18. 18.Find the compound interest on ₹7600 at 25% per year for 2 years, compounded every year (in ₹).
19. 19.What is the difference between the compound interest and the simple interest on ₹26800 at 25% per year for 2 years (in ₹)?
20. 20.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
21. 21.What amount will ₹40600 grow to in 1 year at 25% per year compound interest (in ₹)?
22. 22.A town has 52500 people. The population grows by 5% every year. What will the population be after 1 year?
23. 23.What is the difference between the compound interest and the simple interest on ₹10400 at 15% per year for 2 years (in ₹)?
24. 24.Find the compound interest on ₹13000 at 20% per year for 1 year, compounded every year (in ₹).
25. 25.What amount will ₹40000 grow to in 3 years at 15% per year compound interest (in ₹)?
26. 26.What amount will ₹23500 grow to in 2 years at 10% per year compound interest (in ₹)?
27. 27.A town has 38600 people. The population grows by 8% every year. What will the population be after 1 year?
28. 28.Find the compound interest on ₹5700 at 20% per year for 1 year, compounded every year (in ₹).
29. 29.A town has 43900 people. The population grows by 8% every year. What will the population be after 1 year?
30. 30.What amount will ₹37200 grow to in 2 years at 15% per year compound interest (in ₹)?
31. 31.Find the compound interest on ₹16000 at 5% per year for 3 years, compounded every year (in ₹).
32. 32.Find the compound interest on ₹40800 at 15% per year for 2 years, compounded every year (in ₹).
33. 33.What amount will ₹35900 grow to in 1 year at 10% per year compound interest (in ₹)?
34. 34.A town has 5500 people. The population grows by 12% every year. What will the population be after 1 year?
35. 35.What amount will ₹9700 grow to in 1 year at 15% per year compound interest (in ₹)?
36. 36.What amount will ₹5000 grow to in 2 years at 4% per year compound interest (in ₹)?
37. 37.What amount will ₹18000 grow to in 3 years at 10% per year compound interest (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹25000 at 4% per year for 2 years (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹27000 at 10% per year for 2 years (in ₹)?
40. 40.What amount will ₹55300 grow to in 1 year at 12% per year compound interest (in ₹)?

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