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Maximize the function z = 6x+ 3y , subje...

Maximize the function `z = 6x+ 3y` , subject to the constraints : `4x+y ge 80, x+5y ge 115, 3x+2y le 150, x ge 0, y ge 0`

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The amount of vitamin A will be maximum, if 40 packets of food P and 15 packets of food Q are used in diet.
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