Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 167 · 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.What amount will ₹46800 grow to in 2 years at 5% per year compound interest (in ₹)?
2. 2.Find the compound interest on ₹7100 at 10% per year for 2 years, compounded every year (in ₹).
3. 3.What amount will ₹53600 grow to in 1 year at 15% per year compound interest (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹47500 at 12% per year for 2 years (in ₹)?
5. 5.Find the compound interest on ₹32000 at 15% per year for 3 years, compounded every year (in ₹).
6. 6.What amount will ₹7500 grow to in 2 years at 4% per year compound interest (in ₹)?
7. 7.A town has 38700 people. The population grows by 20% every year. What will the population be after 2 years?
8. 8.What is the difference between the compound interest and the simple interest on ₹45300 at 10% per year for 2 years (in ₹)?
9. 9.Find the compound interest on ₹31800 at 10% per year for 1 year, compounded every year (in ₹).
10. 10.A town has 50000 people. The population grows by 20% every year. What will the population be after 2 years?
11. 11.Find the compound interest on ₹40400 at 10% per year for 1 year, compounded every year (in ₹).
12. 12.Find the compound interest on ₹35800 at 4% per year for 1 year, compounded every year (in ₹).
13. 13.A town has 44500 people. The population grows by 20% every year. What will the population be after 1 year?
14. 14.What amount will ₹5000 grow to in 3 years at 20% per year compound interest (in ₹)?
15. 15.Find the compound interest on ₹5600 at 20% per year for 2 years, compounded every year (in ₹).
16. 16.A town has 49400 people. The population grows by 12% every year. What will the population be after 1 year?
17. 17.What amount will ₹31800 grow to in 2 years at 20% per year compound interest (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹40700 at 10% per year for 2 years (in ₹)?
19. 19.Find the compound interest on ₹45400 at 20% per year for 2 years, compounded every year (in ₹).
20. 20.What is the difference between the compound interest and the simple interest on ₹57500 at 4% per year for 2 years (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹34900 at 10% per year for 2 years (in ₹)?
22. 22.Find the compound interest on ₹40800 at 15% per year for 1 year, compounded every year (in ₹).
23. 23.What amount will ₹52400 grow to in 2 years at 5% per year compound interest (in ₹)?
24. 24.Find the compound interest on ₹8500 at 20% per year for 1 year, compounded every year (in ₹).
25. 25.A scooter is worth ₹41400. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
26. 26.Find the compound interest on ₹58000 at 25% per year for 1 year, compounded every year (in ₹).
27. 27.Find the compound interest on ₹57500 at 8% per year for 2 years, compounded every year (in ₹).
28. 28.Find the compound interest on ₹16000 at 5% per year for 3 years, compounded every year (in ₹).
29. 29.What amount will ₹57600 grow to in 2 years at 20% per year compound interest (in ₹)?
30. 30.Find the compound interest on ₹28900 at 15% per year for 1 year, compounded every year (in ₹).
31. 31.Find the compound interest on ₹40400 at 20% per year for 1 year, compounded every year (in ₹).
32. 32.A town has 14800 people. The population grows by 15% every year. What will the population be after 2 years?
33. 33.What is the difference between the compound interest and the simple interest on ₹28800 at 5% per year for 2 years (in ₹)?
34. 34.A town has 50400 people. The population grows by 5% every year. What will the population be after 1 year?
35. 35.What is the difference between the compound interest and the simple interest on ₹4800 at 15% per year for 2 years (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹55600 at 5% per year for 2 years (in ₹)?
37. 37.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?
38. 38.Find the compound interest on ₹48000 at 10% per year for 3 years, compounded every year (in ₹).
39. 39.What is the difference between the compound interest and the simple interest on ₹25000 at 8% per year for 2 years (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹40000 at 4% per year for 2 years (in ₹)?

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