Linear Programming Question 55

Question: By graphical method, the solution of linear programming problem Maximize $ z=3x_1+5x_2 $ Subject to $ 3x_1+2x_2\le 18 $ , $ x_1\le 4 $ , $ x_2\le 6 $ , $ x_1\ge 0 $ , $ x_2\ge 0 $ is

[MP PET 1996]

Options:

A) $ x_1=2,\ x_2=0,\ z=6 $

B) $ x_1=2,\ x_2=6,\ z=36 $

C) $ x_1=4,\ x_2=3,\ z=27 $

D) $ x_1=4,\ x_2=6,\ z=42 $

Show Answer

Answer:

Correct Answer: B

Solution:

Here feasible region has vertices (0, 0); (4, 0); (4, 3); (2, 6) and (0, 6).

Max z at $ (2,6)=3(2)+5(6)=36 $ .