Consider the following problem. Maximize Z= 3x₁ + 9x2, subject to 3x1 + 4x2 ≤ 12 x1 + 4x2 ≤ 6 5x1 + 6x2 ≤ 27 and x1 ≥ 0, x2 ≥ 0. Solve the dual of this problem by the dual simplex method. The optimal solution is ( O ) with Z=

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