Consider the following constraints from a two-variable Linear Program.
(1) X ≥ 0
(2) Y ≥ 0
(3) 10X + 4Y ≤ 110
(4) 5X - Y ≤ 40
If constraints (3) and (4) are binding, what is the optimal solution (X, Y)?
a) (11, 0)
b) (0, 27.5)
c) (0, -40)
d) (9, 5)
e) not enough information is provided to answer the problem
Answer: d