A Linear Programming Problem Contains a Restriction That Reads "The

Multiple Choice

A linear programming problem contains a restriction that reads "the quantity of X must be at least three times as large as the quantity of Y." Which of the following inequalities is the proper formulation of this constraint?

A) 3X ≥ Y
B) X ≤ 3Y
C) X + Y ≥ 3
D) X - 3Y ≥ 0
E) 3X ≤ Y