Practicing Success
Practicing Success
CUET Preparation Today
If the side of a square is increased by 10%, its area increased by k%. Find the value of k.
|
21 15 42 12 |
21 |
Let the side of square be = 10, area = (s)2 which comes out to be 100 After increase in the side by 10%, side = 11, area = 121 Thus, increase in the area = 121 - 100 = 21 Percentage increase in area = \(\frac{21 }{ 100}\) x 100 = 21% |
