THE  LENGTH  OF  A  RECTANGULAR  FIELD  IS  2  TIMES ITS  BREADTH .  IF  THE  PERIMETER  OF  THE  FIELD  IS  72m , FIND ITS  LENGTH  AND  BREADTH. 

Perimeter of field = 2(l + b) = 72 m
According to the question = 2b = l
So, 2(2b + b) = 72
= 6b = 72
= b = 72/6
= b = 12 m
So, length = 2b = 2 x 12 = 24 m