Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 898 · 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 58000 people. The population grows by 5% every year. What will the population be after 2 years?
2. 2.What amount will ₹6400 grow to in 1 year at 12% per year compound interest (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹3900 at 20% per year for 2 years (in ₹)?
4. 4.Find the compound interest on ₹57500 at 12% per year for 2 years, compounded every year (in ₹).
5. 5.What is the difference between the compound interest and the simple interest on ₹4000 at 5% per year for 2 years (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹37500 at 8% per year for 2 years (in ₹)?
7. 7.What amount will ₹58700 grow to in 1 year at 12% per year compound interest (in ₹)?
8. 8.Find the compound interest on ₹59700 at 25% per year for 1 year, compounded every year (in ₹).
9. 9.What is the difference between the compound interest and the simple interest on ₹22500 at 8% per year for 2 years (in ₹)?
10. 10.Find the compound interest on ₹48000 at 15% per year for 3 years, compounded every year (in ₹).
11. 11.What amount will ₹43600 grow to in 2 years at 5% per year compound interest (in ₹)?
12. 12.What is the difference between the compound interest and the simple interest on ₹30000 at 4% per year for 2 years (in ₹)?
13. 13.What is the difference between the compound interest and the simple interest on ₹30000 at 8% per year for 2 years (in ₹)?
14. 14.Find the compound interest on ₹38700 at 10% per year for 1 year, compounded every year (in ₹).
15. 15.What amount will ₹16800 grow to in 1 year at 15% per year compound interest (in ₹)?
16. 16.Find the compound interest on ₹22000 at 15% per year for 2 years, compounded every year (in ₹).
17. 17.What is the difference between the compound interest and the simple interest on ₹14400 at 5% per year for 2 years (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹5700 at 20% per year for 2 years (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹10000 at 15% per year for 2 years (in ₹)?
20. 20.Find the compound interest on ₹43200 at 4% per year for 1 year, compounded every year (in ₹).
21. 21.What is the difference between the compound interest and the simple interest on ₹7500 at 12% per year for 2 years (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹54800 at 20% per year for 2 years (in ₹)?
23. 23.What amount will ₹59000 grow to in 1 year at 15% per year compound interest (in ₹)?
24. 24.A scooter is worth ₹36100. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
25. 25.Find the compound interest on ₹29800 at 20% per year for 2 years, compounded every year (in ₹).
26. 26.A town has 54700 people. The population grows by 4% every year. What will the population be after 1 year?
27. 27.What amount will ₹59500 grow to in 1 year at 25% per year compound interest (in ₹)?
28. 28.Find the compound interest on ₹9900 at 15% per year for 1 year, compounded every year (in ₹).
29. 29.A town has 23500 people. The population grows by 10% every year. What will the population be after 2 years?
30. 30.What amount will ₹55700 grow to in 1 year at 4% per year compound interest (in ₹)?
31. 31.What amount will ₹38100 grow to in 1 year at 5% per year compound interest (in ₹)?
32. 32.A town has 8000 people. The population grows by 5% every year. What will the population be after 3 years?
33. 33.What amount will ₹8000 grow to in 3 years at 5% per year compound interest (in ₹)?
34. 34.A town has 58800 people. The population grows by 15% every year. What will the population be after 2 years?
35. 35.What is the difference between the compound interest and the simple interest on ₹35600 at 5% per year for 2 years (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹25600 at 20% per year for 2 years (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹10000 at 4% per year for 2 years (in ₹)?
38. 38.Find the compound interest on ₹58100 at 8% per year for 1 year, compounded every year (in ₹).
39. 39.What amount will ₹29000 grow to in 3 years at 10% per year compound interest (in ₹)?
40. 40.Find the compound interest on ₹26000 at 5% per year for 2 years, compounded every year (in ₹).

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