Maximize z4x 3y subject to the following constrainst 2xy4 2
Maximize z=4x + 3y subject to the following constrainst:
2x+y>=4
2x+y<=8
x>=0
y>=0
Solution
Solve Linear Programming Problem Using Simplex Method
x y s1 s2 s3 s4 z
---------------------------------------------------------
2 1 -1 0 0 0 0 4
2 1 0 1 0 0 0 8
1 0 0 0 -1 0 0 0
0 1 0 0 0 -1 0 0
-4 -3 0 0 0 0 1 0
x y s1 s2 s3 s4 z
---------------------------------------------------------
0 1 -1 0 2 0 0 4
0 1 0 1 2 0 0 8
1 0 0 0 -1 0 0 0
0 1 0 0 0 -1 0 0
0 -3 0 0 -4 0 1 0
x y s1 s2 s3 s4 z
---------------------------------------------------------
0 0.5 -0.5 0 1 0 0 2
0 0 1 1 0 0 0 4
1 0.5 -0.5 0 0 0 0 2
0 1 0 0 0 -1 0 0
0 -1 -2 0 0 0 1 8
x y s1 s2 s3 s4 z
---------------------------------------------------------
0 0.5 -0.5 0 1 0 0 2
0 0 1 1 0 0 0 4
1 0.5 -0.5 0 0 0 0 2
0 -1 0 0 0 1 0 0
0 -1 -2 0 0 0 1 8
x y s1 s2 s3 s4 z
---------------------------------------------------------
0 0.5 0 0.5 1 0 0 4
0 0 1 1 0 0 0 4
1 0.5 0 0.5 0 0 0 4
0 -1 0 0 0 1 0 0
0 -1 0 2 0 0 1 16
x y s1 s2 s3 s4 z
---------------------------------------------------------
-1 0 0 0 1 0 0 0
0 0 1 1 0 0 0 4
2 1 0 1 0 0 0 8
2 0 0 1 0 1 0 8
2 0 0 3 0 0 1 24
hence Optimal Solution: z = 24; x = 0, y = 8
