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Expert: - 4/11/2009


Question

Linear Question
Kindly help in solving the question attached.

Thanking You in advance.

Regards,
satish

Answer

Operations Research
Invert
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Solve this problem as a dual problem.  Rotate the problem by 90 degrees and solve as a normal operations research problem.  Too see what I mean, see my attachment.  The constraints become the z term and the z terms become the constraints.  Please see the attachment to see what is meant by that.

This is what is known as the dual problem.  
The solution is 133.33 for D1 and 233.33 for D2.
The Z value here is 26,667.

The major variables have an underscore.

Solve
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The variable to add is in bold in the Z row.

The values of the variable that is in bold in
each row are off to the right.

Select the one that has the lesser value.

The coefficient of the variable to add is in bold.

Divide the row with the variable to add by the factor that is bold.

Zero out the cells above and below by subtracting off multiples of the row which has that variable it it.

When there are no more negatives in the Z row, the problem is done.

Convert back
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Now invert it back to the original question.  
    Questioner's Rating
    Rating(1-10)Knowledgeability = 9Clarity of Response = 10Politeness = 10
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