Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 316 · 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 ₹55000 at 12% per year for 2 years (in ₹)?
2. 2.Find the compound interest on ₹10100 at 10% per year for 1 year, compounded every year (in ₹).
3. 3.What is the difference between the compound interest and the simple interest on ₹2300 at 10% per year for 2 years (in ₹)?
4. 4.What amount will ₹2000 grow to in 3 years at 20% per year compound interest (in ₹)?
5. 5.What amount will ₹34400 grow to in 2 years at 5% per year compound interest (in ₹)?
6. 6.What amount will ₹50000 grow to in 3 years at 10% per year compound interest (in ₹)?
7. 7.What amount will ₹14000 grow to in 2 years at 10% per year compound interest (in ₹)?
8. 8.Find the compound interest on ₹40700 at 12% per year for 1 year, compounded every year (in ₹).
9. 9.What is the difference between the compound interest and the simple interest on ₹59500 at 10% per year for 2 years (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹45000 at 8% per year for 2 years (in ₹)?
11. 11.Find the compound interest on ₹37500 at 20% per year for 3 years, compounded every year (in ₹).
12. 12.What amount will ₹36100 grow to in 1 year at 20% per year compound interest (in ₹)?
13. 13.A scooter is worth ₹3100. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
14. 14.A scooter is worth ₹17800. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
15. 15.Find the compound interest on ₹16000 at 15% per year for 3 years, compounded every year (in ₹).
16. 16.What amount will ₹13000 grow to in 3 years at 10% per year compound interest (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹32000 at 15% per year for 2 years (in ₹)?
18. 18.What amount will ₹32800 grow to in 2 years at 5% per year compound interest (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹20000 at 8% per year for 2 years (in ₹)?
20. 20.Find the compound interest on ₹40000 at 12% per year for 2 years, compounded every year (in ₹).
21. 21.What amount will ₹50000 grow to in 2 years at 4% per year compound interest (in ₹)?
22. 22.Find the compound interest on ₹35000 at 4% per year for 2 years, compounded every year (in ₹).
23. 23.What is the difference between the compound interest and the simple interest on ₹23200 at 25% per year for 2 years (in ₹)?
24. 24.Find the compound interest on ₹7500 at 8% per year for 2 years, compounded every year (in ₹).
25. 25.What is the difference between the compound interest and the simple interest on ₹28700 at 20% per year for 2 years (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹32000 at 20% per year for 2 years (in ₹)?
27. 27.Find the compound interest on ₹4900 at 20% per year for 2 years, compounded every year (in ₹).
28. 28.A town has 58400 people. The population grows by 20% every year. What will the population be after 2 years?
29. 29.A town has 33600 people. The population grows by 25% every year. What will the population be after 3 years?
30. 30.What is the difference between the compound interest and the simple interest on ₹28800 at 5% per year for 2 years (in ₹)?
31. 31.Find the compound interest on ₹12300 at 25% per year for 1 year, compounded every year (in ₹).
32. 32.What is the difference between the compound interest and the simple interest on ₹15000 at 8% per year for 2 years (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹39600 at 5% per year for 2 years (in ₹)?
34. 34.Find the compound interest on ₹15200 at 12% per year for 1 year, compounded every year (in ₹).
35. 35.What is the difference between the compound interest and the simple interest on ₹2500 at 8% per year for 2 years (in ₹)?
36. 36.Find the compound interest on ₹43200 at 15% per year for 2 years, compounded every year (in ₹).
37. 37.What is the difference between the compound interest and the simple interest on ₹26400 at 25% per year for 2 years (in ₹)?
38. 38.What amount will ₹8000 grow to in 3 years at 15% per year compound interest (in ₹)?
39. 39.Find the compound interest on ₹32000 at 5% per year for 3 years, compounded every year (in ₹).
40. 40.What amount will ₹9400 grow to in 1 year at 25% per year compound interest (in ₹)?

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