If the objective function z=x+2y has to be optimized in subject to constraints : x≥3,x+y≤5,x+2y≥6,y≥0. Then which of the following(s) is correct
A
Zmax=7
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B
Zmax=4
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C
Zmin=0
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D
Zmin=6
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Solution
The correct option is DZmin=6 Given : objective function , Z=x+2y
constraints : x≥3,x+y≤5,x+2y≥6,y≥0
Plotting the graph of feasible region :
From graph, our feasible region is ABC,
Now value of objective function at corner points : Z=x+2y