Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 697 · 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 ₹21700 at 5% per year for 1 year, compounded every year (in ₹).
2. 2.What is the difference between the compound interest and the simple interest on ₹38100 at 10% per year for 2 years (in ₹)?
3. 3.Find the compound interest on ₹33000 at 12% per year for 1 year, compounded every year (in ₹).
4. 4.What amount will ₹27500 grow to in 2 years at 4% per year compound interest (in ₹)?
5. 5.What amount will ₹30000 grow to in 3 years at 20% per year compound interest (in ₹)?
6. 6.What amount will ₹35800 grow to in 1 year at 4% per year compound interest (in ₹)?
7. 7.A town has 21000 people. The population grows by 10% every year. What will the population be after 3 years?
8. 8.A town has 19000 people. The population grows by 10% every year. What will the population be after 3 years?
9. 9.Find the compound interest on ₹30000 at 4% per year for 2 years, compounded every year (in ₹).
10. 10.What is the difference between the compound interest and the simple interest on ₹53300 at 20% per year for 2 years (in ₹)?
11. 11.What is the difference between the compound interest and the simple interest on ₹32500 at 4% per year for 2 years (in ₹)?
12. 12.A town has 29300 people. The population grows by 20% every year. What will the population be after 1 year?
13. 13.What is the difference between the compound interest and the simple interest on ₹35000 at 4% per year for 2 years (in ₹)?
14. 14.Find the compound interest on ₹46600 at 15% per year for 1 year, compounded every year (in ₹).
15. 15.What amount will ₹48000 grow to in 3 years at 15% per year compound interest (in ₹)?
16. 16.Find the compound interest on ₹20000 at 12% per year for 2 years, compounded every year (in ₹).
17. 17.Find the compound interest on ₹31600 at 8% per year for 1 year, compounded every year (in ₹).
18. 18.What is the difference between the compound interest and the simple interest on ₹27500 at 8% per year for 2 years (in ₹)?
19. 19.What amount will ₹45000 grow to in 2 years at 12% per year compound interest (in ₹)?
20. 20.What amount will ₹11800 grow to in 2 years at 20% per year compound interest (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹23600 at 5% per year for 2 years (in ₹)?
22. 22.Find the compound interest on ₹30400 at 15% per year for 2 years, compounded every year (in ₹).
23. 23.What is the difference between the compound interest and the simple interest on ₹15000 at 8% per year for 2 years (in ₹)?
24. 24.Find the compound interest on ₹8000 at 15% per year for 3 years, compounded every year (in ₹).
25. 25.Find the compound interest on ₹31300 at 12% per year for 1 year, compounded every year (in ₹).
26. 26.What is the difference between the compound interest and the simple interest on ₹5000 at 12% per year for 2 years (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹37500 at 8% per year for 2 years (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹44400 at 25% per year for 2 years (in ₹)?
29. 29.What is the difference between the compound interest and the simple interest on ₹38800 at 15% per year for 2 years (in ₹)?
30. 30.Find the compound interest on ₹24000 at 20% per year for 3 years, compounded every year (in ₹).
31. 31.Find the compound interest on ₹12700 at 12% per year for 1 year, compounded every year (in ₹).
32. 32.What is the difference between the compound interest and the simple interest on ₹12500 at 4% per year for 2 years (in ₹)?
33. 33.Find the compound interest on ₹48000 at 15% per year for 3 years, compounded every year (in ₹).
34. 34.What is the difference between the compound interest and the simple interest on ₹10000 at 8% per year for 2 years (in ₹)?
35. 35.Find the compound interest on ₹16000 at 15% per year for 3 years, compounded every year (in ₹).
36. 36.Find the compound interest on ₹8000 at 4% per year for 1 year, compounded every year (in ₹).
37. 37.What amount will ₹22400 grow to in 2 years at 25% per year compound interest (in ₹)?
38. 38.Find the compound interest on ₹25700 at 8% per year for 1 year, compounded every year (in ₹).
39. 39.What amount will ₹8000 grow to in 3 years at 5% per year compound interest (in ₹)?
40. 40.What amount will ₹40200 grow to in 1 year at 8% per year compound interest (in ₹)?

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