Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 942 · 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 ₹57600 grow to in 3 years at 25% per year compound interest (in ₹)?
2. 2.Find the compound interest on ₹40000 at 15% per year for 3 years, compounded every year (in ₹).
3. 3.What amount will ₹23500 grow to in 2 years at 20% per year compound interest (in ₹)?
4. 4.Find the compound interest on ₹55000 at 20% per year for 3 years, compounded every year (in ₹).
5. 5.Find the compound interest on ₹8700 at 25% per year for 1 year, compounded every year (in ₹).
6. 6.What amount will ₹43800 grow to in 1 year at 10% per year compound interest (in ₹)?
7. 7.A town has 32000 people. The population grows by 15% every year. What will the population be after 2 years?
8. 8.A town has 27500 people. The population grows by 4% every year. What will the population be after 2 years?
9. 9.Find the compound interest on ₹34900 at 8% per year for 1 year, compounded every year (in ₹).
10. 10.What amount will ₹25400 grow to in 1 year at 10% per year compound interest (in ₹)?
11. 11.A scooter is worth ₹26000. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
12. 12.What amount will ₹35000 grow to in 3 years at 20% per year compound interest (in ₹)?
13. 13.What amount will ₹57500 grow to in 2 years at 8% per year compound interest (in ₹)?
14. 14.What amount will ₹5000 grow to in 1 year at 8% per year compound interest (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹25600 at 25% per year for 2 years (in ₹)?
16. 16.A town has 32000 people. The population grows by 15% every year. What will the population be after 3 years?
17. 17.A town has 13600 people. The population grows by 25% every year. What will the population be after 2 years?
18. 18.What amount will ₹8000 grow to in 3 years at 5% per year compound interest (in ₹)?
19. 19.Find the compound interest on ₹13700 at 4% per year for 1 year, compounded every year (in ₹).
20. 20.What amount will ₹49900 grow to in 2 years at 10% per year compound interest (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹52400 at 5% per year for 2 years (in ₹)?
22. 22.Find the compound interest on ₹34300 at 20% per year for 2 years, compounded every year (in ₹).
23. 23.A town has 16000 people. The population grows by 5% every year. What will the population be after 3 years?
24. 24.Find the compound interest on ₹47600 at 8% per year for 1 year, compounded every year (in ₹).
25. 25.What amount will ₹15500 grow to in 1 year at 5% per year compound interest (in ₹)?
26. 26.What amount will ₹16400 grow to in 2 years at 5% per year compound interest (in ₹)?
27. 27.A scooter is worth ₹32000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
28. 28.A town has 2400 people. The population grows by 25% every year. What will the population be after 2 years?
29. 29.What is the difference between the compound interest and the simple interest on ₹52500 at 8% per year for 2 years (in ₹)?
30. 30.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹11600 at 5% per year for 2 years (in ₹)?
32. 32.Find the compound interest on ₹57600 at 25% per year for 3 years, compounded every year (in ₹).
33. 33.A town has 46800 people. The population grows by 10% every year. What will the population be after 1 year?
34. 34.What amount will ₹46900 grow to in 2 years at 20% per year compound interest (in ₹)?
35. 35.A scooter is worth ₹8000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹54800 at 25% per year for 2 years (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹5400 at 20% per year for 2 years (in ₹)?
38. 38.Find the compound interest on ₹3100 at 10% per year for 1 year, compounded every year (in ₹).
39. 39.What amount will ₹24000 grow to in 3 years at 15% per year compound interest (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹28800 at 15% per year for 2 years (in ₹)?

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