Question: A simplex tableau is shown below. X3 8 Basis S2 0 0 X2 2 6 -1/2 X1 CB 15 0 8 0 Xi 15 1

A simplex tableau is shown below. X3 8 Basis S2 0 0 X2 2 6 -1/2 X1 CB 15 0 8 0 Xi 15 1 0 0 15 0 Si 0 3 -5/2 1/2 49 49 S2 S3 0 7 -3/2 1/2 109 -109 RHS 12 45 18 1 0 1 Xs 1/2 94 8 0 324 G-29 -92 0 0 a) What is the basic feasible solution corresponding to this tableau? Explain why (2 marks) b) Is this solution optimal? Why or why not? (2 marks)

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