Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 533 · 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.Find the compound interest on ₹40900 at 12% per year for 1 year, compounded every year (in ₹).
2. 2.What is the difference between the compound interest and the simple interest on ₹15600 at 15% per year for 2 years (in ₹)?
3. 3.A scooter is worth ₹43200. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹29600 at 5% per year for 2 years (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹28400 at 15% per year for 2 years (in ₹)?
6. 6.A scooter is worth ₹45000. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
7. 7.What amount will ₹24000 grow to in 3 years at 5% per year compound interest (in ₹)?
8. 8.Find the compound interest on ₹29500 at 20% per year for 1 year, compounded every year (in ₹).
9. 9.What amount will ₹20000 grow to in 2 years at 8% per year compound interest (in ₹)?
10. 10.A scooter is worth ₹10700. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
11. 11.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).
12. 12.Find the compound interest on ₹15000 at 8% per year for 2 years, compounded every year (in ₹).
13. 13.What amount will ₹7900 grow to in 1 year at 25% per year compound interest (in ₹)?
14. 14.Find the compound interest on ₹54400 at 15% per year for 2 years, compounded every year (in ₹).
15. 15.What amount will ₹32500 grow to in 2 years at 4% per year compound interest (in ₹)?
16. 16.What amount will ₹15000 grow to in 2 years at 4% per year compound interest (in ₹)?
17. 17.Find the compound interest on ₹40000 at 5% per year for 3 years, compounded every year (in ₹).
18. 18.What is the difference between the compound interest and the simple interest on ₹53600 at 25% per year for 2 years (in ₹)?
19. 19.A scooter is worth ₹14700. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
20. 20.What amount will ₹54400 grow to in 1 year at 5% per year compound interest (in ₹)?
21. 21.What amount will ₹29600 grow to in 1 year at 10% per year compound interest (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹57500 at 4% per year for 2 years (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹39600 at 10% per year for 2 years (in ₹)?
24. 24.What amount will ₹23600 grow to in 1 year at 8% per year compound interest (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹11200 at 15% per year for 2 years (in ₹)?
26. 26.Find the compound interest on ₹48000 at 5% per year for 3 years, compounded every year (in ₹).
27. 27.What amount will ₹22400 grow to in 2 years at 15% per year compound interest (in ₹)?
28. 28.What amount will ₹43800 grow to in 1 year at 15% per year compound interest (in ₹)?
29. 29.What amount will ₹36300 grow to in 2 years at 10% per year compound interest (in ₹)?
30. 30.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹16000 at 10% per year for 2 years (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹13200 at 25% per year for 2 years (in ₹)?
33. 33.A town has 47200 people. The population grows by 12% every year. What will the population be after 1 year?
34. 34.Find the compound interest on ₹40000 at 15% per year for 3 years, compounded every year (in ₹).
35. 35.What amount will ₹26100 grow to in 1 year at 10% per year compound interest (in ₹)?
36. 36.Find the compound interest on ₹11200 at 25% per year for 3 years, compounded every year (in ₹).
37. 37.A scooter is worth ₹5600. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
38. 38.A scooter is worth ₹56900. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
39. 39.A town has 32500 people. The population grows by 12% every year. What will the population be after 1 year?
40. 40.What is the difference between the compound interest and the simple interest on ₹24800 at 25% per year for 2 years (in ₹)?

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