Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 686 · 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 ₹5200 at 15% per year for 2 years (in ₹)?
2. 2.Find the compound interest on ₹58000 at 25% per year for 2 years, compounded every year (in ₹).
3. 3.Find the compound interest on ₹19800 at 15% per year for 1 year, compounded every year (in ₹).
4. 4.What amount will ₹56400 grow to in 1 year at 12% per year compound interest (in ₹)?
5. 5.What amount will ₹57500 grow to in 2 years at 4% per year compound interest (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹23600 at 10% per year for 2 years (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹50500 at 20% per year for 2 years (in ₹)?
8. 8.Find the compound interest on ₹58200 at 20% per year for 1 year, compounded every year (in ₹).
9. 9.What is the difference between the compound interest and the simple interest on ₹24600 at 20% per year for 2 years (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹32500 at 12% per year for 2 years (in ₹)?
11. 11.What is the difference between the compound interest and the simple interest on ₹10000 at 12% per year for 2 years (in ₹)?
12. 12.A scooter is worth ₹16300. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
13. 13.A town has 4500 people. The population grows by 10% every year. What will the population be after 1 year?
14. 14.Find the compound interest on ₹2500 at 12% per year for 2 years, compounded every year (in ₹).
15. 15.What amount will ₹14000 grow to in 2 years at 15% per year compound interest (in ₹)?
16. 16.A town has 48000 people. The population grows by 5% every year. What will the population be after 3 years?
17. 17.What is the difference between the compound interest and the simple interest on ₹7500 at 4% per year for 2 years (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹40000 at 8% per year for 2 years (in ₹)?
19. 19.Find the compound interest on ₹22400 at 25% per year for 3 years, compounded every year (in ₹).
20. 20.A town has 56500 people. The population grows by 8% every year. What will the population be after 1 year?
21. 21.What amount will ₹59900 grow to in 1 year at 20% per year compound interest (in ₹)?
22. 22.What amount will ₹19300 grow to in 1 year at 12% per year compound interest (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹5000 at 8% per year for 2 years (in ₹)?
24. 24.Find the compound interest on ₹36100 at 20% per year for 1 year, compounded every year (in ₹).
25. 25.A scooter is worth ₹29600. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
26. 26.A town has 17500 people. The population grows by 4% every year. What will the population be after 1 year?
27. 27.A scooter is worth ₹42500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
28. 28.A town has 36200 people. The population grows by 15% every year. What will the population be after 1 year?
29. 29.What is the difference between the compound interest and the simple interest on ₹20000 at 4% per year for 2 years (in ₹)?
30. 30.What amount will ₹8300 grow to in 2 years at 10% per year compound interest (in ₹)?
31. 31.What amount will ₹18400 grow to in 2 years at 5% per year compound interest (in ₹)?
32. 32.A town has 8000 people. The population grows by 5% every year. What will the population be after 2 years?
33. 33.What is the difference between the compound interest and the simple interest on ₹21600 at 10% per year for 2 years (in ₹)?
34. 34.A town has 50900 people. The population grows by 25% every year. What will the population be after 1 year?
35. 35.What amount will ₹33300 grow to in 1 year at 25% per year compound interest (in ₹)?
36. 36.What amount will ₹41000 grow to in 3 years at 10% per year compound interest (in ₹)?
37. 37.A town has 6000 people. The population grows by 10% every year. What will the population be after 3 years?
38. 38.A scooter is worth ₹23100. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
39. 39.What amount will ₹44800 grow to in 3 years at 25% per year compound interest (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹9200 at 5% per year for 2 years (in ₹)?

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