The following tableau was obtained after several steps of the simplex algorithm in a standard linear programming problem. What conclusions can you draw form it? X2 x3 X4 RHS Ratio 1 6 1 30 9. 1 7 1 10 x1 should enter the basis x2 should leave the basis This is the final tableau with optimal x = 0 and æ = 0 x_4^*=0 The first line is to be read as Z 6x1 + x3 + 30 The optimal value of Z is 30

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