Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 100 · 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 ₹2000 at 5% per year for 2 years, compounded every year (in ₹).
2. 2.Find the compound interest on ₹24000 at 20% per year for 3 years, compounded every year (in ₹).
3. 3.What amount will ₹47500 grow to in 1 year at 5% per year compound interest (in ₹)?
4. 4.Find the compound interest on ₹22500 at 4% per year for 2 years, compounded every year (in ₹).
5. 5.Find the compound interest on ₹16000 at 15% per year for 3 years, compounded every year (in ₹).
6. 6.A scooter is worth ₹16000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
7. 7.What amount will ₹40000 grow to in 3 years at 5% per year compound interest (in ₹)?
8. 8.Find the compound interest on ₹11000 at 12% per year for 1 year, compounded every year (in ₹).
9. 9.A scooter is worth ₹57000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
10. 10.A scooter is worth ₹20000. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
11. 11.Find the compound interest on ₹41300 at 12% per year for 1 year, compounded every year (in ₹).
12. 12.What is the difference between the compound interest and the simple interest on ₹43600 at 5% per year for 2 years (in ₹)?
13. 13.Find the compound interest on ₹30200 at 10% per year for 1 year, compounded every year (in ₹).
14. 14.Find the compound interest on ₹46500 at 20% per year for 3 years, compounded every year (in ₹).
15. 15.What amount will ₹14500 grow to in 1 year at 10% per year compound interest (in ₹)?
16. 16.Find the compound interest on ₹58000 at 10% per year for 1 year, compounded every year (in ₹).
17. 17.What amount will ₹57900 grow to in 1 year at 20% per year compound interest (in ₹)?
18. 18.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹19200 at 5% per year for 2 years (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹12800 at 5% per year for 2 years (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹51200 at 5% per year for 2 years (in ₹)?
22. 22.Find the compound interest on ₹50900 at 25% per year for 1 year, compounded every year (in ₹).
23. 23.What is the difference between the compound interest and the simple interest on ₹24800 at 15% per year for 2 years (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹30400 at 5% per year for 2 years (in ₹)?
25. 25.Find the compound interest on ₹9600 at 25% per year for 3 years, compounded every year (in ₹).
26. 26.What amount will ₹34700 grow to in 1 year at 10% per year compound interest (in ₹)?
27. 27.A scooter is worth ₹15000. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
28. 28.A scooter is worth ₹7600. Its value falls by 25% every year. What will it be worth after 2 years (in ₹)?
29. 29.What is the difference between the compound interest and the simple interest on ₹35000 at 8% per year for 2 years (in ₹)?
30. 30.Find the compound interest on ₹5000 at 10% per year for 2 years, compounded every year (in ₹).
31. 31.Find the compound interest on ₹41200 at 12% per year for 1 year, compounded every year (in ₹).
32. 32.What amount will ₹55000 grow to in 1 year at 25% per year compound interest (in ₹)?
33. 33.Find the compound interest on ₹45000 at 12% per year for 2 years, compounded every year (in ₹).
34. 34.What is the difference between the compound interest and the simple interest on ₹35900 at 10% per year for 2 years (in ₹)?
35. 35.Find the compound interest on ₹50500 at 8% per year for 1 year, compounded every year (in ₹).
36. 36.What is the difference between the compound interest and the simple interest on ₹43600 at 25% per year for 2 years (in ₹)?
37. 37.Find the compound interest on ₹19200 at 25% per year for 3 years, compounded every year (in ₹).
38. 38.What amount will ₹43300 grow to in 1 year at 5% per year compound interest (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹7500 at 12% per year for 2 years (in ₹)?
40. 40.Find the compound interest on ₹16700 at 20% per year for 1 year, compounded every year (in ₹).

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