Assignment:
Consider the network shown in Fig, where the numbers next to the arcs consists of the lower and upper bound on the flow in the arc, while the double-digit numbers next to the arcs indicate the per-unit cost of the flow through the arc. In addition, we want to ensure that a total of five units flow from the source to the sink and exactly two units flow through the node n3. Formulate.
![290_units flow.JPG](https://secure.tutorsglobe.com/CMSImages/290_units flow.JPG)
Provide complete and step by step solution for the question and show calculations and use formulas.