The width of a rectangular hall is ½ of its length. If the area of the hall is 288 sq.m, what is the difference between its length and breadth?	Pick.
A) 8m	B) 10m	C) 12m	D) 15m	E) 17m
Let the length of the hall be x m   Breadth of the hall = 1x/2 m   Area of the hall = Length * Breadth   288 = x * 1x/2   x² = 576   x =24   Difference between the length and breadth of the hall = x - 1x/2 = x/2   =24/2= 
<gadget id="calculator">24/2</gadget>
<output>12</output>
12m   ANSWER:12m
<result>C</result>
The width of a rectangular hall is ½ of its length. If the area of the hall is 288 sq.m, what is the difference between its length and breadth?