Use the two-stage method to solve.Find x1 ? 0, x2 ? 0, x3 ? 0 such that x1 + 3x2 + 2x3 ? 60 x1 + 2x2 + 3x3 ? 36and z = 4x1 + 3x2 + 2x3 is maximized.
A. x1 = 50, x2 = 5, x3 = 0, z = 215
B. x2 = 20, x1 = 0, x3 = 0, z = 60
C. x1 = 60, x2 = 0, x3 = 0, z = 240
D. x3 = 30, x1 = 0, x2 = 0, z = 60
Answer: C
Mathematics
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