Question:
The corner points of the feasible region in graphical representation of a L.P.P. are (2, 72), (15, 20) and (40, 15). If \( Z = 18x + 9y \) be the objective function, then:
- A. Z is maximum at (2, 72), minimum at (15, 20)
- B. Z is maximum at (15, 20), minimum at (40, 15)
- C. Z is maximum at (40, 15), minimum at (15, 20)
- D. Z is maximum at (40, 15), minimum at (2, 72)