Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 976 · 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 ₹51200 grow to in 1 year at 5% per year compound interest (in ₹)?
2. 2.Find the compound interest on ₹57600 at 5% per year for 2 years, compounded every year (in ₹).
3. 3.What is the difference between the compound interest and the simple interest on ₹57500 at 12% per year for 2 years (in ₹)?
4. 4.Find the compound interest on ₹29000 at 20% per year for 3 years, compounded every year (in ₹).
5. 5.Find the compound interest on ₹55200 at 15% per year for 2 years, compounded every year (in ₹).
6. 6.What is the difference between the compound interest and the simple interest on ₹2500 at 8% per year for 2 years (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹30000 at 8% per year for 2 years (in ₹)?
8. 8.Find the compound interest on ₹34700 at 20% per year for 1 year, compounded every year (in ₹).
9. 9.What amount will ₹8400 grow to in 1 year at 4% per year compound interest (in ₹)?
10. 10.What amount will ₹44900 grow to in 1 year at 4% per year compound interest (in ₹)?
11. 11.Find the compound interest on ₹12200 at 5% per year for 1 year, compounded every year (in ₹).
12. 12.What is the difference between the compound interest and the simple interest on ₹13600 at 25% per year for 2 years (in ₹)?
13. 13.A scooter is worth ₹14800. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
14. 14.A town has 32000 people. The population grows by 5% every year. What will the population be after 3 years?
15. 15.What amount will ₹60000 grow to in 2 years at 12% per year compound interest (in ₹)?
16. 16.A scooter is worth ₹4700. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
17. 17.What amount will ₹51200 grow to in 3 years at 25% per year compound interest (in ₹)?
18. 18.What amount will ₹48000 grow to in 3 years at 15% per year compound interest (in ₹)?
19. 19.A scooter is worth ₹57400. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
20. 20.A scooter is worth ₹56000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹19600 at 10% per year for 2 years (in ₹)?
22. 22.What amount will ₹22000 grow to in 2 years at 10% per year compound interest (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹16000 at 15% per year for 2 years (in ₹)?
24. 24.What amount will ₹42800 grow to in 1 year at 15% per year compound interest (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹3600 at 25% per year for 2 years (in ₹)?
26. 26.A town has 34800 people. The population grows by 10% every year. What will the population be after 1 year?
27. 27.What amount will ₹10000 grow to in 3 years at 20% per year compound interest (in ₹)?
28. 28.A town has 6300 people. The population grows by 5% every year. What will the population be after 1 year?
29. 29.Find the compound interest on ₹21900 at 25% per year for 1 year, compounded every year (in ₹).
30. 30.A scooter is worth ₹16000. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹2800 at 5% per year for 2 years (in ₹)?
32. 32.Find the compound interest on ₹7600 at 8% per year for 1 year, compounded every year (in ₹).
33. 33.What amount will ₹44400 grow to in 2 years at 5% per year compound interest (in ₹)?
34. 34.What amount will ₹31200 grow to in 1 year at 10% per year compound interest (in ₹)?
35. 35.Find the compound interest on ₹9200 at 8% per year for 1 year, compounded every year (in ₹).
36. 36.Find the compound interest on ₹38400 at 25% per year for 3 years, compounded every year (in ₹).
37. 37.Find the compound interest on ₹14000 at 10% per year for 1 year, compounded every year (in ₹).
38. 38.Find the compound interest on ₹56000 at 10% per year for 3 years, compounded every year (in ₹).
39. 39.A scooter is worth ₹15100. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
40. 40.What amount will ₹59900 grow to in 1 year at 4% per year compound interest (in ₹)?

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