Solve problem 5-6, assuming that there is a 10% power transmission loss through the network

optimal shipping schedule for *5-6. Three electric power plants with capacities of 25, 40, and 30 million kWh supply electrich to three cities. The maximum demands at the three cities are estimated at 30,35, and 25 million kWh. The price per million kWh at the three cities is given in Table 5.25. TABLE 5.25 Price/Million kWh for Problem 5-6 City 2 Plant 2 3 $600 $320 $500 $700 $300 $480 $400 $350 $450 During the month of August, there is a 20% increase in demand at each of the three cit- ies, which can be met by purchasing electricity from another network at a premium rate of $1000 per million kWh. The network is not linked to city 3, however. The utility com- pany wishes to determine the most economical plan for the distribution and purchase of additional energy. (a) Formulate the problem as a transportation model. (b) Determine an optimal distribution plan for the utility company. (e) Determine the cost of the additional power purchased by each of the three cities. 10% nower transmission loss through the