Discussion
In the transportation problem, the stepping stone method is used to:
Answer: A
The stepping stone method is used to optimise the initial feasible solution of a transportation problem. It checks the unused cells for an opportunity cost, by tracing a closed path of stones, and moves allocation to those cells if cost can be reduced. The initial solution itself is found by methods such as the north-west corner rule or the Vogel approximation method, so the fourth option is the wrong one, and unbalanced problems are handled by adding a dummy row or column.
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