In transportation model of O R once an initial solution has been found, the next step is to test that solution for optimality. The methods widely used for testing the solution are:

In transportation model of O R once an initial solution has been found

1.	In transportation model of O R once an initial solution has been found, the next step is to test that solution for optimality. The methods widely used for testing the solution are:
A.	Stepping Stone Method
B.	Modified Distribution Method
C.	Both of the above
D.	Slack variable method
E.	None of the above
Answer» D. Slack variable method

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In transportation model of O R once an initial solution has been found, the next step is to test that solution for optimality. The methods widely used for testing the solution are:

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