Operations Research - Study Mode

[#241] Which of the following is an assumption of an LP model?
Correct Answer

(D) All of the above

Explanation

Solution: Divisibility, Proportionality and Additivity is an assumption of an LP model.

[#242] Which of the following is a limitation associated with an LP model?
Correct Answer

(D) All of the above

Explanation

Solution: The relationship among decision variables in linear,
No guarantee to get integer valued solutions and
No consideration of effect of time & uncertainty on LP model are the limitation associated with an LP model.

[#243] The graphical method of LP problem uses.
Correct Answer

(D) All of the above

Explanation

Solution: The graphical method of LP problem uses Objective function equation, Constraint equations and Linear equations.

[#244] A feasible solution to an LP problem.
Correct Answer

(A) Must satisfy all of the problem’s constraints simultaneously

Explanation

Solution: A feasible solution to an LP problem must satisfy all of the problem’s constraints simultaneously. A feasible solution is a set of values for the decision variables that satisfies all of the constraints in an optimization problem. A local optimal solution is one where there is no other feasible solution "in the vicinity" with a better objective function value.

[#245] Which of the following statements is true with respect to the optimal solution of an LP problem?
Correct Answer

(D) If an optimal solution exists, there will always be at least one at a corner

Explanation

Solution: If an optimal solution exists, there will always be at least one at a corner statement is true with respect to the optimal solution of an LP problem.