Consider the following statements regarding the characteristics of the standard from of a linear programming problem: 1. All the constraints are expressed in the form of equations 2. The right hand side of each constraints equation is non-negative 3. All the decision variables are non-negative Which of these statements are correct?

Consider the following statements regarding the characteristics of the

1.	Consider the following statements regarding the characteristics of the standard from of a linear programming problem: 1. All the constraints are expressed in the form of equations 2. The right hand side of each constraints equation is non-negative 3. All the decision variables are non-negative Which of these statements are correct?
A.	1, 2 and 3
B.	1 and 2
C.	2 and 3
D.	1 and 3
Answer» B. 1 and 2

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