Question 9
Corner points of the feasible region for an LPP are (0, 2), (3, 0), (6, 0), (6, 8) and (0, 5).
Let F = 4x + 6y be the objective function.
The Minimum value of F occurs at
(A) (0, 2) only
(B) (3, 0) only
(C) the mid point of the line segment joining the points (0, 2) and (3, 0) only
(D) any point on the line segment joining the points (0, 2) and (3, 0).
We need to find Max F = 4x + 6y
Corner Points are
(0, 2), (3, 0), (6, 0), (6, 8), (0, 5)
Checking value of F at corner points
Since minimum occurs at 2 points,
∴ Z is minimum on all points joining (0, 2) and (3, 0)
So, we can say that
Z is minimum at any point on line segment joining points (0, 2) & (3, 0).
So, the correct answer is (D)

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.