Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 884 · 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 35300 people. The population grows by 10% every year. What will the population be after 1 year?
2. 2.Find the compound interest on ₹18800 at 5% per year for 2 years, compounded every year (in ₹).
3. 3.Find the compound interest on ₹19600 at 20% per year for 2 years, compounded every year (in ₹).
4. 4.Find the compound interest on ₹3000 at 10% per year for 3 years, compounded every year (in ₹).
5. 5.What amount will ₹49800 grow to in 1 year at 15% per year compound interest (in ₹)?
6. 6.A town has 35200 people. The population grows by 15% every year. What will the population be after 2 years?
7. 7.Find the compound interest on ₹42300 at 25% per year for 1 year, compounded every year (in ₹).
8. 8.Find the compound interest on ₹35500 at 8% per year for 1 year, compounded every year (in ₹).
9. 9.A town has 16000 people. The population grows by 20% every year. What will the population be after 3 years?
10. 10.Find the compound interest on ₹48000 at 15% per year for 3 years, compounded every year (in ₹).
11. 11.Find the compound interest on ₹20100 at 10% per year for 2 years, compounded every year (in ₹).
12. 12.What amount will ₹26200 grow to in 1 year at 15% per year compound interest (in ₹)?
13. 13.What is the difference between the compound interest and the simple interest on ₹40400 at 25% per year for 2 years (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹60000 at 12% per year for 2 years (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹53600 at 25% per year for 2 years (in ₹)?
16. 16.Find the compound interest on ₹53000 at 20% per year for 2 years, compounded every year (in ₹).
17. 17.Find the compound interest on ₹57400 at 10% per year for 1 year, compounded every year (in ₹).
18. 18.Find the compound interest on ₹29400 at 5% per year for 1 year, compounded every year (in ₹).
19. 19.What amount will ₹44500 grow to in 1 year at 10% per year compound interest (in ₹)?
20. 20.A town has 5200 people. The population grows by 15% every year. What will the population be after 1 year?
21. 21.What is the difference between the compound interest and the simple interest on ₹30000 at 12% per year for 2 years (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹37600 at 5% per year for 2 years (in ₹)?
23. 23.Find the compound interest on ₹2500 at 4% per year for 2 years, compounded every year (in ₹).
24. 24.What is the difference between the compound interest and the simple interest on ₹8800 at 25% per year for 2 years (in ₹)?
25. 25.What amount will ₹60000 grow to in 2 years at 8% per year compound interest (in ₹)?
26. 26.Find the compound interest on ₹19000 at 4% per year for 1 year, compounded every year (in ₹).
27. 27.A scooter is worth ₹8300. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
28. 28.Find the compound interest on ₹39400 at 10% per year for 1 year, compounded every year (in ₹).
29. 29.Find the compound interest on ₹24500 at 4% per year for 1 year, compounded every year (in ₹).
30. 30.A town has 29600 people. The population grows by 10% every year. What will the population be after 1 year?
31. 31.What amount will ₹52000 grow to in 1 year at 15% per year compound interest (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹10400 at 15% per year for 2 years (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹35000 at 12% per year for 2 years (in ₹)?
34. 34.Find the compound interest on ₹56700 at 4% per year for 1 year, compounded every year (in ₹).
35. 35.What is the difference between the compound interest and the simple interest on ₹12500 at 8% per year for 2 years (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹11100 at 10% per year for 2 years (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹17500 at 12% per year for 2 years (in ₹)?
38. 38.Find the compound interest on ₹27500 at 4% per year for 2 years, compounded every year (in ₹).
39. 39.A town has 26400 people. The population grows by 15% every year. What will the population be after 2 years?
40. 40.What is the difference between the compound interest and the simple interest on ₹34500 at 20% per year for 2 years (in ₹)?

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