The Optimal Combination of Decision Variables of a Linear Programming

Multiple Choice

The optimal combination of decision variables of a linear programming problem is x = 20 and y = 30. The given resource constraints are: 5x + 2y ≤ 150 and y ≥ 15. The shadow price of the second constraint is:

A) 1.5.
B) .67.
C) Zero.
D) 10.
E) There is insufficient information to provide and answer.