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CUET
-- Mathematics - Section A
Linear Programming
Maximum value of $z=5 x+4 y$ subject to the constraints $x-y \leq 0, x+y \leq 4, x \geq 0, y \geq 0$ occurs at the point (a, b), then 4a + 5b = ________.
16
18
20
0
The correct answer is Option (2) - 18
