Q 30

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.

Q 31

In a transportation problem,if it costs $4 per item to ship up to 200 items between cities,and $2 per item for each additional item,the proportionality assumption of LP is satisfied.

Q 32

The optimal solution to an LP problem was
3.69 and
1.21.If
and
were restricted to be integers,then
= 4 and
1 will be a feasible solution,but not necessarily an optimal solution to the IP problem.