Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 917 · 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 ₹11000 grow to in 3 years at 10% per year compound interest (in ₹)?
2. 2.Find the compound interest on ₹11600 at 5% per year for 2 years, compounded every year (in ₹).
3. 3.Find the compound interest on ₹2000 at 10% per year for 1 year, compounded every year (in ₹).
4. 4.What amount will ₹50500 grow to in 1 year at 15% per year compound interest (in ₹)?
5. 5.Find the compound interest on ₹18000 at 10% per year for 3 years, compounded every year (in ₹).
6. 6.Find the compound interest on ₹18400 at 5% per year for 2 years, compounded every year (in ₹).
7. 7.Find the compound interest on ₹1600 at 25% per year for 3 years, compounded every year (in ₹).
8. 8.What amount will ₹45000 grow to in 2 years at 12% per year compound interest (in ₹)?
9. 9.What amount will ₹46300 grow to in 1 year at 15% per year compound interest (in ₹)?
10. 10.A scooter is worth ₹28600. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
11. 11.A town has 50500 people. The population grows by 10% every year. What will the population be after 1 year?
12. 12.Find the compound interest on ₹28600 at 25% per year for 1 year, compounded every year (in ₹).
13. 13.A scooter is worth ₹35400. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹6000 at 5% per year for 2 years (in ₹)?
15. 15.Find the compound interest on ₹51400 at 20% per year for 1 year, compounded every year (in ₹).
16. 16.Find the compound interest on ₹40000 at 8% per year for 2 years, compounded every year (in ₹).
17. 17.A town has 59200 people. The population grows by 10% every year. What will the population be after 2 years?
18. 18.Find the compound interest on ₹36300 at 25% per year for 1 year, compounded every year (in ₹).
19. 19.A scooter is worth ₹24700. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
20. 20.A town has 45000 people. The population grows by 20% every year. What will the population be after 3 years?
21. 21.A town has 37000 people. The population grows by 10% every year. What will the population be after 3 years?
22. 22.What amount will ₹3000 grow to in 3 years at 10% per year compound interest (in ₹)?
23. 23.Find the compound interest on ₹26400 at 8% per year for 1 year, compounded every year (in ₹).
24. 24.Find the compound interest on ₹24000 at 15% per year for 3 years, compounded every year (in ₹).
25. 25.What amount will ₹46100 grow to in 1 year at 15% per year compound interest (in ₹)?
26. 26.Find the compound interest on ₹32000 at 15% per year for 3 years, compounded every year (in ₹).
27. 27.What amount will ₹17700 grow to in 1 year at 12% per year compound interest (in ₹)?
28. 28.Find the compound interest on ₹12900 at 5% per year for 1 year, compounded every year (in ₹).
29. 29.What is the difference between the compound interest and the simple interest on ₹10600 at 10% per year for 2 years (in ₹)?
30. 30.Find the compound interest on ₹15000 at 8% per year for 2 years, compounded every year (in ₹).
31. 31.What is the difference between the compound interest and the simple interest on ₹14000 at 25% per year for 2 years (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹56200 at 20% per year for 2 years (in ₹)?
33. 33.A scooter is worth ₹20800. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹14800 at 20% per year for 2 years (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹28400 at 5% per year for 2 years (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹53300 at 20% per year for 2 years (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹36400 at 5% per year for 2 years (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹14400 at 25% per year for 2 years (in ₹)?
39. 39.A town has 43100 people. The population grows by 5% every year. What will the population be after 1 year?
40. 40.Find the compound interest on ₹44000 at 10% per year for 3 years, compounded every year (in ₹).

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