Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 877 · 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 ₹13700 grow to in 1 year at 10% per year compound interest (in ₹)?
2. 2.What amount will ₹48000 grow to in 2 years at 15% per year compound interest (in ₹)?
3. 3.Find the compound interest on ₹53800 at 10% per year for 2 years, compounded every year (in ₹).
4. 4.Find the compound interest on ₹39500 at 10% per year for 1 year, compounded every year (in ₹).
5. 5.A town has 14900 people. The population grows by 20% every year. What will the population be after 2 years?
6. 6.Find the compound interest on ₹53100 at 25% per year for 1 year, compounded every year (in ₹).
7. 7.What amount will ₹24000 grow to in 3 years at 15% per year compound interest (in ₹)?
8. 8.What is the difference between the compound interest and the simple interest on ₹28800 at 25% per year for 2 years (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹13600 at 5% per year for 2 years (in ₹)?
10. 10.A town has 9200 people. The population grows by 10% every year. What will the population be after 2 years?
11. 11.A scooter is worth ₹4400. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
12. 12.A scooter is worth ₹40000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
13. 13.Find the compound interest on ₹41500 at 20% per year for 2 years, compounded every year (in ₹).
14. 14.What is the difference between the compound interest and the simple interest on ₹17500 at 4% per year for 2 years (in ₹)?
15. 15.What amount will ₹43600 grow to in 1 year at 5% per year compound interest (in ₹)?
16. 16.Find the compound interest on ₹45000 at 20% per year for 3 years, compounded every year (in ₹).
17. 17.What amount will ₹8000 grow to in 3 years at 15% per year compound interest (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹9700 at 10% per year for 2 years (in ₹)?
19. 19.Find the compound interest on ₹24200 at 4% per year for 1 year, compounded every year (in ₹).
20. 20.What is the difference between the compound interest and the simple interest on ₹34400 at 5% per year for 2 years (in ₹)?
21. 21.What amount will ₹15000 grow to in 2 years at 4% per year compound interest (in ₹)?
22. 22.Find the compound interest on ₹38800 at 5% per year for 2 years, compounded every year (in ₹).
23. 23.A scooter is worth ₹57600. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
24. 24.What amount will ₹43000 grow to in 1 year at 25% per year compound interest (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹25000 at 8% per year for 2 years (in ₹)?
26. 26.A town has 14900 people. The population grows by 5% every year. What will the population be after 1 year?
27. 27.Find the compound interest on ₹59000 at 5% per year for 1 year, compounded every year (in ₹).
28. 28.A town has 32500 people. The population grows by 12% every year. What will the population be after 2 years?
29. 29.Find the compound interest on ₹6700 at 5% per year for 1 year, compounded every year (in ₹).
30. 30.What amount will ₹27500 grow to in 2 years at 12% per year compound interest (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹21200 at 25% per year for 2 years (in ₹)?
32. 32.What amount will ₹11200 grow to in 1 year at 12% per year compound interest (in ₹)?
33. 33.What amount will ₹49600 grow to in 3 years at 25% per year compound interest (in ₹)?
34. 34.What amount will ₹36500 grow to in 1 year at 25% per year compound interest (in ₹)?
35. 35.Find the compound interest on ₹13400 at 10% per year for 2 years, compounded every year (in ₹).
36. 36.Find the compound interest on ₹37500 at 12% per year for 2 years, compounded every year (in ₹).
37. 37.Find the compound interest on ₹54800 at 25% per year for 2 years, compounded every year (in ₹).
38. 38.A town has 14500 people. The population grows by 10% every year. What will the population be after 1 year?
39. 39.Find the compound interest on ₹25000 at 20% per year for 2 years, compounded every year (in ₹).
40. 40.A scooter is worth ₹45000. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?

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