Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 936 · 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 is the difference between the compound interest and the simple interest on ₹7600 at 5% per year for 2 years (in ₹)?
2. 2.What amount will ₹40500 grow to in 3 years at 20% per year compound interest (in ₹)?
3. 3.Find the compound interest on ₹40000 at 15% per year for 3 years, compounded every year (in ₹).
4. 4.What amount will ₹2400 grow to in 2 years at 25% per year compound interest (in ₹)?
5. 5.What amount will ₹5600 grow to in 2 years at 25% per year compound interest (in ₹)?
6. 6.A town has 47900 people. The population grows by 8% every year. What will the population be after 1 year?
7. 7.Find the compound interest on ₹24800 at 5% per year for 2 years, compounded every year (in ₹).
8. 8.What is the difference between the compound interest and the simple interest on ₹14000 at 10% per year for 2 years (in ₹)?
9. 9.A town has 22500 people. The population grows by 8% every year. What will the population be after 2 years?
10. 10.What amount will ₹24000 grow to in 3 years at 5% per year compound interest (in ₹)?
11. 11.What amount will ₹58000 grow to in 2 years at 15% per year compound interest (in ₹)?
12. 12.A scooter is worth ₹42800. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
13. 13.What is the difference between the compound interest and the simple interest on ₹7100 at 10% per year for 2 years (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹42500 at 12% per year for 2 years (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹15000 at 8% per year for 2 years (in ₹)?
16. 16.What amount will ₹52800 grow to in 3 years at 25% per year compound interest (in ₹)?
17. 17.Find the compound interest on ₹56000 at 15% per year for 3 years, compounded every year (in ₹).
18. 18.A town has 59300 people. The population grows by 25% every year. What will the population be after 1 year?
19. 19.Find the compound interest on ₹31000 at 8% per year for 1 year, compounded every year (in ₹).
20. 20.What amount will ₹32000 grow to in 3 years at 15% per year compound interest (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹5200 at 5% per year for 2 years (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹36800 at 10% per year for 2 years (in ₹)?
23. 23.What amount will ₹53500 grow to in 1 year at 10% per year compound interest (in ₹)?
24. 24.What amount will ₹3600 grow to in 1 year at 5% per year compound interest (in ₹)?
25. 25.A town has 33600 people. The population grows by 8% every year. What will the population be after 1 year?
26. 26.Find the compound interest on ₹2800 at 4% per year for 1 year, compounded every year (in ₹).
27. 27.What amount will ₹20000 grow to in 2 years at 5% per year compound interest (in ₹)?
28. 28.A town has 49600 people. The population grows by 4% every year. What will the population be after 1 year?
29. 29.Find the compound interest on ₹8700 at 12% per year for 1 year, compounded every year (in ₹).
30. 30.What is the difference between the compound interest and the simple interest on ₹50800 at 10% per year for 2 years (in ₹)?
31. 31.What amount will ₹42700 grow to in 2 years at 20% per year compound interest (in ₹)?
32. 32.Find the compound interest on ₹29000 at 20% per year for 1 year, compounded every year (in ₹).
33. 33.What amount will ₹18700 grow to in 1 year at 10% per year compound interest (in ₹)?
34. 34.What amount will ₹36500 grow to in 2 years at 10% per year compound interest (in ₹)?
35. 35.Find the compound interest on ₹29700 at 8% per year for 1 year, compounded every year (in ₹).
36. 36.What amount will ₹7200 grow to in 2 years at 20% per year compound interest (in ₹)?
37. 37.Find the compound interest on ₹42500 at 12% per year for 2 years, compounded every year (in ₹).
38. 38.What is the difference between the compound interest and the simple interest on ₹15000 at 12% per year for 2 years (in ₹)?
39. 39.What amount will ₹15800 grow to in 1 year at 25% per year compound interest (in ₹)?
40. 40.Find the compound interest on ₹52400 at 25% per year for 1 year, compounded every year (in ₹).

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