The flows in a general minimum cost network flow model (MCNFM)do all necessarily have to be from "left to right";that is,from supply points to demand points.

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Quizplus · Accepted Answer

Flows in a general minimum cost network flow model can move in any direction depending on the topology of the network. While it is common for flow to move from supply points to demand points, there may be instances where flow needs to move in other directions, such as in a circular or looped network. Hence, the statement that "flows in a general minimum cost network flow model necessarily have to be from 'left to right'" is false.

The Flows in a General Minimum Cost Network Flow Model