In a LPP, If the objective function $Z=ax+by $ has the same maximum value at two corner points of the feasible region, then the number of points at which $Z_{max}$ occurs is :

0 2 finite Infinite

Infinite

The correct answer is Option (4) → Infinite In case Z has maximum value for two corner points then maximum value exist on all points on line joining the corner points on which maximum value has ocurred.