Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 932 · 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 ₹33400 at 20% per year for 2 years (in ₹)?
2. 2.A town has 54100 people. The population grows by 20% every year. What will the population be after 2 years?
3. 3.What is the difference between the compound interest and the simple interest on ₹28500 at 10% per year for 2 years (in ₹)?
4. 4.What amount will ₹21200 grow to in 2 years at 10% per year compound interest (in ₹)?
5. 5.What amount will ₹32500 grow to in 2 years at 12% per year compound interest (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹49300 at 10% per year for 2 years (in ₹)?
7. 7.Find the compound interest on ₹16400 at 10% per year for 2 years, compounded every year (in ₹).
8. 8.Find the compound interest on ₹47600 at 15% per year for 1 year, compounded every year (in ₹).
9. 9.Find the compound interest on ₹10000 at 4% per year for 2 years, compounded every year (in ₹).
10. 10.Find the compound interest on ₹36000 at 10% per year for 3 years, compounded every year (in ₹).
11. 11.A town has 32500 people. The population grows by 8% every year. What will the population be after 2 years?
12. 12.What amount will ₹2500 grow to in 2 years at 4% per year compound interest (in ₹)?
13. 13.A town has 37200 people. The population grows by 15% every year. What will the population be after 2 years?
14. 14.Find the compound interest on ₹38000 at 10% per year for 1 year, compounded every year (in ₹).
15. 15.Find the compound interest on ₹40000 at 15% per year for 3 years, compounded every year (in ₹).
16. 16.Find the compound interest on ₹48900 at 10% per year for 1 year, compounded every year (in ₹).
17. 17.What amount will ₹10000 grow to in 2 years at 8% per year compound interest (in ₹)?
18. 18.Find the compound interest on ₹13000 at 4% per year for 1 year, compounded every year (in ₹).
19. 19.A scooter is worth ₹56400. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
20. 20.Find the compound interest on ₹56000 at 5% per year for 3 years, compounded every year (in ₹).
21. 21.What is the difference between the compound interest and the simple interest on ₹40000 at 12% per year for 2 years (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹52500 at 8% per year for 2 years (in ₹)?
23. 23.What amount will ₹16400 grow to in 2 years at 5% per year compound interest (in ₹)?
24. 24.Find the compound interest on ₹10000 at 10% per year for 3 years, compounded every year (in ₹).
25. 25.Find the compound interest on ₹10400 at 15% per year for 2 years, compounded every year (in ₹).
26. 26.A town has 41000 people. The population grows by 10% every year. What will the population be after 1 year?
27. 27.What is the difference between the compound interest and the simple interest on ₹50700 at 20% per year for 2 years (in ₹)?
28. 28.What amount will ₹48000 grow to in 3 years at 5% per year compound interest (in ₹)?
29. 29.What amount will ₹40000 grow to in 2 years at 8% per year compound interest (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹7500 at 4% per year for 2 years (in ₹)?
31. 31.What amount will ₹51700 grow to in 1 year at 15% per year compound interest (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹43200 at 5% per year for 2 years (in ₹)?
33. 33.A scooter is worth ₹22500. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
34. 34.What amount will ₹14800 grow to in 2 years at 10% per year compound interest (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹35000 at 4% per year for 2 years (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹31200 at 25% per year for 2 years (in ₹)?
37. 37.What amount will ₹50800 grow to in 2 years at 5% per year compound interest (in ₹)?
38. 38.Find the compound interest on ₹13600 at 5% per year for 2 years, compounded every year (in ₹).
39. 39.Find the compound interest on ₹27500 at 8% per year for 2 years, compounded every year (in ₹).
40. 40.What amount will ₹48200 grow to in 1 year at 15% per year compound interest (in ₹)?

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