1. A linear problem with three variables and two constraints can be solved by graphical method |
2. For solutions of a linear programming problem with mixed constraints, Big-M-method can be employed |
3. In the solutions process of a linear programming problem using Big-M-method which an artificial variable leaves the basis, the column of the artificial-variable can be removed from all subsequent tables. |
A) 1, 2 and 3
B) 1 and 2
C) 1 and 3
D) 2 and 3
Correct Answer: D
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