Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 762 · 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 ₹29000 at 25% per year for 1 year, compounded every year (in ₹).
2. 2.What amount will ₹49600 grow to in 3 years at 25% per year compound interest (in ₹)?
3. 3.What amount will ₹46000 grow to in 3 years at 10% per year compound interest (in ₹)?
4. 4.Find the compound interest on ₹46800 at 5% per year for 2 years, compounded every year (in ₹).
5. 5.Find the compound interest on ₹39200 at 15% per year for 2 years, compounded every year (in ₹).
6. 6.What is the difference between the compound interest and the simple interest on ₹40000 at 12% per year for 2 years (in ₹)?
7. 7.A scooter is worth ₹47400. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
8. 8.What amount will ₹6800 grow to in 2 years at 15% per year compound interest (in ₹)?
9. 9.A town has 9500 people. The population grows by 8% every year. What will the population be after 1 year?
10. 10.What is the difference between the compound interest and the simple interest on ₹30000 at 12% per year for 2 years (in ₹)?
11. 11.What amount will ₹27600 grow to in 2 years at 15% per year compound interest (in ₹)?
12. 12.A town has 14700 people. The population grows by 10% every year. What will the population be after 1 year?
13. 13.Find the compound interest on ₹27500 at 4% per year for 2 years, compounded every year (in ₹).
14. 14.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
15. 15.What is the difference between the compound interest and the simple interest on ₹50000 at 12% per year for 2 years (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹20000 at 8% per year for 2 years (in ₹)?
17. 17.Find the compound interest on ₹54400 at 25% per year for 2 years, compounded every year (in ₹).
18. 18.What amount will ₹33400 grow to in 2 years at 10% per year compound interest (in ₹)?
19. 19.What amount will ₹60000 grow to in 2 years at 4% per year compound interest (in ₹)?
20. 20.What amount will ₹55300 grow to in 1 year at 10% per year compound interest (in ₹)?
21. 21.A town has 59200 people. The population grows by 15% every year. What will the population be after 2 years?
22. 22.Find the compound interest on ₹34100 at 15% per year for 1 year, compounded every year (in ₹).
23. 23.What amount will ₹2300 grow to in 1 year at 5% per year compound interest (in ₹)?
24. 24.Find the compound interest on ₹15500 at 15% per year for 1 year, compounded every year (in ₹).
25. 25.Find the compound interest on ₹40000 at 5% per year for 3 years, compounded every year (in ₹).
26. 26.A scooter is worth ₹39400. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
27. 27.Find the compound interest on ₹57900 at 20% per year for 2 years, compounded every year (in ₹).
28. 28.Find the compound interest on ₹8000 at 15% per year for 3 years, compounded every year (in ₹).
29. 29.What amount will ₹22500 grow to in 2 years at 12% per year compound interest (in ₹)?
30. 30.A town has 38800 people. The population grows by 5% every year. What will the population be after 2 years?
31. 31.What is the difference between the compound interest and the simple interest on ₹30000 at 4% per year for 2 years (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹42500 at 12% per year for 2 years (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹5000 at 4% per year for 2 years (in ₹)?
34. 34.Find the compound interest on ₹43300 at 12% per year for 1 year, compounded every year (in ₹).
35. 35.Find the compound interest on ₹30700 at 10% per year for 1 year, compounded every year (in ₹).
36. 36.What amount will ₹4800 grow to in 3 years at 25% per year compound interest (in ₹)?
37. 37.A scooter is worth ₹26300. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
38. 38.Find the compound interest on ₹25600 at 25% per year for 1 year, compounded every year (in ₹).
39. 39.Find the compound interest on ₹29000 at 20% per year for 3 years, compounded every year (in ₹).
40. 40.Find the compound interest on ₹25000 at 8% per year for 2 years, compounded every year (in ₹).

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