A rectangular field is to be divided into three identical rectangular pens by…
MATHEMATICS · Single correct · CBSE · Mathematics · Applications of Derivatives · Applications of Derivatives
Problem
A rectangular field is to be divided into three identical rectangular pens by installing two interior fences parallel to the longer side of the field. If exactly 240 m of fencing (including the two interior fences) is available, what length should each interior fence have so that the total enclosed area is maximized?
(a) 40m
(b) 60m
(c) 30m
(d) 24m