Evaluate z=5x+3y at corners:
(0,0):0, (2,0):10, (20/19,45/19):235/19≈12.4, (0,3):9.
Max =235/19, Min =0. So (B) and (C) are true.
The minimum value of z=3x+6y subject to the constraints 2x+3y≤180, x+y≥60, x≥3y, x≥0, y≥0 is :
Held on 15 Jun 2023 · Verified 13 Jul 2026.
225
180
270
250
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