Answer Happy

a) Using reduced costs, show that the displayed solution isoptimal.
b) Display the corresponding optimal solution in a networkusing nodes, directed arcs and arc flows and verifyfeasibility.
c) Find an alternative optimal solution.
d) Demonstrate that the Vogel’s approximation methodprovides the same or an alternative (optimal) solution.
The following is a transportation tableau. The unit cost, cij, is displayed in the upper left corner of each cell and the value of each basic variable is in parentheses. The supplies and demands are displayed in the last column and row, respectively. 30 30 10 9 (1) (8) 30 20 30 (3) (7) 10 40 30 40 (16) 16 20 7 8