Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 524 · 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 ₹20000 grow to in 2 years at 8% per year compound interest (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹45000 at 4% per year for 2 years (in ₹)?
3. 3.Find the compound interest on ₹24000 at 15% per year for 3 years, compounded every year (in ₹).
4. 4.A scooter is worth ₹4500. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹52500 at 8% per year for 2 years (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹30000 at 4% per year for 2 years (in ₹)?
7. 7.Find the compound interest on ₹19200 at 15% per year for 1 year, compounded every year (in ₹).
8. 8.A town has 5800 people. The population grows by 10% every year. What will the population be after 2 years?
9. 9.Find the compound interest on ₹25400 at 20% per year for 1 year, compounded every year (in ₹).
10. 10.What is the difference between the compound interest and the simple interest on ₹37500 at 8% per year for 2 years (in ₹)?
11. 11.What is the difference between the compound interest and the simple interest on ₹28800 at 25% per year for 2 years (in ₹)?
12. 12.What amount will ₹43600 grow to in 2 years at 25% per year compound interest (in ₹)?
13. 13.Find the compound interest on ₹27200 at 25% per year for 2 years, compounded every year (in ₹).
14. 14.A town has 52500 people. The population grows by 4% every year. What will the population be after 2 years?
15. 15.What is the difference between the compound interest and the simple interest on ₹27200 at 10% per year for 2 years (in ₹)?
16. 16.A town has 3000 people. The population grows by 10% every year. What will the population be after 1 year?
17. 17.What amount will ₹16000 grow to in 1 year at 15% per year compound interest (in ₹)?
18. 18.Find the compound interest on ₹2500 at 4% per year for 2 years, compounded every year (in ₹).
19. 19.A town has 15000 people. The population grows by 8% every year. What will the population be after 2 years?
20. 20.Find the compound interest on ₹9600 at 5% per year for 2 years, compounded every year (in ₹).
21. 21.Find the compound interest on ₹31000 at 10% per year for 3 years, compounded every year (in ₹).
22. 22.What amount will ₹45600 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 ₹58000 at 5% per year for 2 years (in ₹)?
24. 24.Find the compound interest on ₹29200 at 5% per year for 2 years, compounded every year (in ₹).
25. 25.Find the compound interest on ₹24000 at 15% per year for 1 year, compounded every year (in ₹).
26. 26.What amount will ₹9200 grow to in 2 years at 10% per year compound interest (in ₹)?
27. 27.What amount will ₹43200 grow to in 3 years at 25% per year compound interest (in ₹)?
28. 28.What amount will ₹52200 grow to in 1 year at 8% per year compound interest (in ₹)?
29. 29.A town has 21000 people. The population grows by 10% every year. What will the population be after 2 years?
30. 30.Find the compound interest on ₹56000 at 5% per year for 3 years, compounded every year (in ₹).
31. 31.What amount will ₹3000 grow to in 1 year at 8% per year compound interest (in ₹)?
32. 32.Find the compound interest on ₹20000 at 4% per year for 2 years, compounded every year (in ₹).
33. 33.What is the difference between the compound interest and the simple interest on ₹5100 at 20% per year for 2 years (in ₹)?
34. 34.Find the compound interest on ₹2800 at 5% per year for 2 years, compounded every year (in ₹).
35. 35.What is the difference between the compound interest and the simple interest on ₹52800 at 15% per year for 2 years (in ₹)?
36. 36.A scooter is worth ₹24000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
37. 37.A town has 10000 people. The population grows by 8% every year. What will the population be after 2 years?
38. 38.What is the difference between the compound interest and the simple interest on ₹8800 at 15% per year for 2 years (in ₹)?
39. 39.A town has 40400 people. The population grows by 5% every year. What will the population be after 2 years?
40. 40.A scooter is worth ₹10800. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?

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