The perimeter of a yard is 60 meters. The length is six less than twice the width. What are the dimensions of the yard?
 Length = 18 meters,
 Width = 12 meters
 B
 Length = 36 meters,
 Width = 24 meters
 C
 Length = 24 meters,
 Width = 36 meters
 D
 Length = 12 meters,
 Width = 18 meters