Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 254 · 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 ₹14500 at 4% per year for 1 year, compounded every year (in ₹).
2. 2.What is the difference between the compound interest and the simple interest on ₹9100 at 10% per year for 2 years (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹2500 at 12% per year for 2 years (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹15000 at 4% per year for 2 years (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹36400 at 10% per year for 2 years (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹17400 at 20% per year for 2 years (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹44400 at 5% per year for 2 years (in ₹)?
8. 8.A town has 48000 people. The population grows by 5% every year. What will the population be after 3 years?
9. 9.Find the compound interest on ₹5700 at 10% per year for 2 years, compounded every year (in ₹).
10. 10.Find the compound interest on ₹31000 at 10% per year for 3 years, compounded every year (in ₹).
11. 11.What is the difference between the compound interest and the simple interest on ₹16700 at 20% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹49100 at 10% per year for 2 years, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹32800 at 5% per year for 2 years (in ₹)?
14. 14.Find the compound interest on ₹39500 at 20% per year for 3 years, compounded every year (in ₹).
15. 15.A town has 16000 people. The population grows by 10% every year. What will the population be after 3 years?
16. 16.What amount will ₹27600 grow to in 1 year at 5% per year compound interest (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹41200 at 15% per year for 2 years (in ₹)?
18. 18.What amount will ₹52500 grow to in 2 years at 4% per year compound interest (in ₹)?
19. 19.A town has 45900 people. The population grows by 10% every year. What will the population be after 1 year?
20. 20.A scooter is worth ₹25000. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
21. 21.Find the compound interest on ₹16300 at 15% per year for 1 year, compounded every year (in ₹).
22. 22.What is the difference between the compound interest and the simple interest on ₹36800 at 15% per year for 2 years (in ₹)?
23. 23.What amount will ₹32000 grow to in 2 years at 5% per year compound interest (in ₹)?
24. 24.Find the compound interest on ₹40400 at 10% per year for 1 year, compounded every year (in ₹).
25. 25.Find the compound interest on ₹52500 at 12% per year for 2 years, compounded every year (in ₹).
26. 26.What is the difference between the compound interest and the simple interest on ₹42000 at 15% per year for 2 years (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹25000 at 4% per year for 2 years (in ₹)?
28. 28.Find the compound interest on ₹17600 at 5% per year for 2 years, compounded every year (in ₹).
29. 29.Find the compound interest on ₹42100 at 4% per year for 1 year, compounded every year (in ₹).
30. 30.What is the difference between the compound interest and the simple interest on ₹20000 at 12% per year for 2 years (in ₹)?
31. 31.A scooter is worth ₹47400. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
32. 32.A town has 2700 people. The population grows by 15% every year. What will the population be after 1 year?
33. 33.What amount will ₹4200 grow to in 2 years at 20% per year compound interest (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹11000 at 10% per year for 2 years (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹29200 at 15% per year for 2 years (in ₹)?
36. 36.What amount will ₹51800 grow to in 1 year at 5% per year compound interest (in ₹)?
37. 37.Find the compound interest on ₹28700 at 20% per year for 2 years, compounded every year (in ₹).
38. 38.What is the difference between the compound interest and the simple interest on ₹22500 at 8% per year for 2 years (in ₹)?
39. 39.Find the compound interest on ₹16000 at 10% per year for 3 years, compounded every year (in ₹).
40. 40.What is the difference between the compound interest and the simple interest on ₹50800 at 10% per year for 2 years (in ₹)?

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