Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 503 · 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 ₹10400 at 5% per year for 2 years (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹18400 at 15% per year for 2 years (in ₹)?
3. 3.Find the compound interest on ₹29000 at 8% per year for 1 year, compounded every year (in ₹).
4. 4.A town has 51200 people. The population grows by 25% every year. What will the population be after 2 years?
5. 5.What is the difference between the compound interest and the simple interest on ₹22400 at 15% per year for 2 years (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹5000 at 12% per year for 2 years (in ₹)?
7. 7.What amount will ₹40000 grow to in 2 years at 8% per year compound interest (in ₹)?
8. 8.What amount will ₹55300 grow to in 2 years at 10% per year compound interest (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹8400 at 15% per year for 2 years (in ₹)?
10. 10.A town has 30800 people. The population grows by 15% every year. What will the population be after 1 year?
11. 11.Find the compound interest on ₹45000 at 12% per year for 2 years, compounded every year (in ₹).
12. 12.What amount will ₹13500 grow to in 3 years at 20% per year compound interest (in ₹)?
13. 13.Find the compound interest on ₹51300 at 20% per year for 2 years, compounded every year (in ₹).
14. 14.What amount will ₹48900 grow to in 1 year at 10% per year compound interest (in ₹)?
15. 15.A town has 15000 people. The population grows by 12% every year. What will the population be after 2 years?
16. 16.Find the compound interest on ₹42000 at 5% per year for 2 years, compounded every year (in ₹).
17. 17.What is the difference between the compound interest and the simple interest on ₹32500 at 12% per year for 2 years (in ₹)?
18. 18.Find the compound interest on ₹14600 at 4% per year for 1 year, compounded every year (in ₹).
19. 19.A scooter is worth ₹25800. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
20. 20.A town has 18100 people. The population grows by 4% every year. What will the population be after 1 year?
21. 21.What is the difference between the compound interest and the simple interest on ₹34200 at 20% per year for 2 years (in ₹)?
22. 22.Find the compound interest on ₹6300 at 10% per year for 2 years, compounded every year (in ₹).
23. 23.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹17500 at 8% per year for 2 years (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹56400 at 15% per year for 2 years (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹48400 at 10% per year for 2 years (in ₹)?
27. 27.Find the compound interest on ₹10400 at 10% per year for 2 years, compounded every year (in ₹).
28. 28.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
29. 29.Find the compound interest on ₹7300 at 10% per year for 1 year, compounded every year (in ₹).
30. 30.Find the compound interest on ₹25000 at 12% per year for 2 years, compounded every year (in ₹).
31. 31.What is the difference between the compound interest and the simple interest on ₹55200 at 10% per year for 2 years (in ₹)?
32. 32.What amount will ₹25500 grow to in 3 years at 20% per year compound interest (in ₹)?
33. 33.What amount will ₹38400 grow to in 1 year at 20% per year compound interest (in ₹)?
34. 34.Find the compound interest on ₹26900 at 10% per year for 2 years, compounded every year (in ₹).
35. 35.A town has 48000 people. The population grows by 5% every year. What will the population be after 3 years?
36. 36.What is the difference between the compound interest and the simple interest on ₹25800 at 10% per year for 2 years (in ₹)?
37. 37.Find the compound interest on ₹49600 at 25% per year for 3 years, compounded every year (in ₹).
38. 38.What amount will ₹32500 grow to in 2 years at 12% per year compound interest (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹57500 at 4% per year for 2 years (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹15000 at 8% per year for 2 years (in ₹)?

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