Below is the graphical network representation of a transhipment problem. The number next to an edge (i.e. arrow) indicates the unit cost for utilising it for shipping products. The number next to a node (i.e. circle) indicates the net flow of products flowing in (+ve) or out (-ve) of it. The number inside a node (i.e. circle) is its index. Formulate this transhipment problem as a linear programming problem. Write the corresponding mathematical formulation in the box provided for minimising the total shipping cost. (Note: you don't have to solve it) [4 points] Hints: Denote Xij as the number of products to be shipped from node-i to node-j. . Check the total supply and demand. . You cannot ship a portion (say 0.5 unit) of a product over an edge. 4 1 -8 5 2 2 3 +5 00 8 9 -9 7 5 +4