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The corner points of the bounded feasible region for an LPP are (0,4), (4,4), (6,6), (0,12). If the objective function is Z=px+qy,p>0,q>0Z = px + qy, p > 0, q > 0, then the condition on p and q so that maximum of Z occurs at (6,6) and (0,12) is

Solution

Correct Option: 1

The corner points of the bounded feasible region are (0,4), (4,4), (6,6), (0,12).

For the maximum of Z=px+qyZ = px + qy to occur at both (6,6) and (0,12), the objective function must have the same value at these points.


At point (6,6):

Z=p(6)+q(6)Z = p(6) + q(6)

Z=6p+6qZ = 6p + 6q


At point (0,12):

Z=p(0)+q(12)Z = p(0) + q(12)

Z=12qZ = 12q


Since maximum occurs at both points, the values must be equal:

6p+6q=12q6p + 6q = 12q

6p=12q6q6p = 12q - 6q

6p=6q6p = 6q

p=qp = q


Therefore, the condition on pp and qq so that maximum of ZZ occurs at both (6,6) and (0,12) is p=qp = q.

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