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The point at which the maximum value of the function Z=x+yZ=x+y, subject to the constraints x+2y≤70x+2y\leq70, 2x+y≤952x+y\leq95, x,y≥0x,y\geq0, is obtained, is:

Solution

✅ Correct Option: 4

Solving x+2y=70x+2y=70 and 2x+y=952x+y=95 gives (40,15)(40,15). Corner values of Z=x+yZ=x+y are 0 at the origin, 35 at (0,35)(0,35), 47.5 at (47.5,0)(47.5,0) and 55 at (40,15)(40,15), so the maximum occurs at (40,15)(40,15).

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