Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 363 · 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 ₹32500 at 4% per year for 2 years (in ₹)?
2. 2.What amount will ₹46000 grow to in 1 year at 8% per year compound interest (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹16000 at 20% per year for 2 years (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹27500 at 8% per year for 2 years (in ₹)?
5. 5.A town has 59500 people. The population grows by 20% every year. What will the population be after 3 years?
6. 6.What amount will ₹8000 grow to in 2 years at 20% per year compound interest (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹35500 at 20% per year for 2 years (in ₹)?
8. 8.Find the compound interest on ₹40000 at 5% per year for 3 years, compounded every year (in ₹).
9. 9.A scooter is worth ₹24000. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
10. 10.Find the compound interest on ₹25100 at 20% per year for 1 year, compounded every year (in ₹).
11. 11.Find the compound interest on ₹37600 at 15% per year for 2 years, compounded every year (in ₹).
12. 12.What amount will ₹11400 grow to in 1 year at 12% per year compound interest (in ₹)?
13. 13.What amount will ₹2400 grow to in 1 year at 5% per year compound interest (in ₹)?
14. 14.Find the compound interest on ₹16500 at 25% per year for 1 year, compounded every year (in ₹).
15. 15.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
16. 16.What amount will ₹25400 grow to in 1 year at 20% per year compound interest (in ₹)?
17. 17.A scooter is worth ₹46800. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
18. 18.Find the compound interest on ₹48000 at 15% per year for 3 years, compounded every year (in ₹).
19. 19.A scooter is worth ₹30000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
20. 20.Find the compound interest on ₹56000 at 5% per year for 3 years, compounded every year (in ₹).
21. 21.Find the compound interest on ₹16400 at 5% per year for 2 years, compounded every year (in ₹).
22. 22.What amount will ₹10700 grow to in 1 year at 5% per year compound interest (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹4400 at 20% per year for 2 years (in ₹)?
24. 24.A town has 37800 people. The population grows by 4% every year. What will the population be after 1 year?
25. 25.Find the compound interest on ₹27200 at 25% per year for 3 years, compounded every year (in ₹).
26. 26.A town has 30000 people. The population grows by 8% every year. What will the population be after 2 years?
27. 27.What amount will ₹44700 grow to in 1 year at 12% per year compound interest (in ₹)?
28. 28.A scooter is worth ₹37200. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
29. 29.A town has 24000 people. The population grows by 5% every year. What will the population be after 3 years?
30. 30.Find the compound interest on ₹18400 at 20% per year for 1 year, compounded every year (in ₹).
31. 31.What is the difference between the compound interest and the simple interest on ₹20700 at 10% per year for 2 years (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹56000 at 25% per year for 2 years (in ₹)?
33. 33.What amount will ₹14400 grow to in 2 years at 15% per year compound interest (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹4800 at 10% per year for 2 years (in ₹)?
35. 35.Find the compound interest on ₹22500 at 8% per year for 2 years, compounded every year (in ₹).
36. 36.What amount will ₹32200 grow to in 2 years at 10% per year compound interest (in ₹)?
37. 37.Find the compound interest on ₹2500 at 4% per year for 2 years, compounded every year (in ₹).
38. 38.Find the compound interest on ₹43300 at 15% per year for 1 year, compounded every year (in ₹).
39. 39.What is the difference between the compound interest and the simple interest on ₹30900 at 10% per year for 2 years (in ₹)?
40. 40.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?

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