Find an initial solution to the following transportation problem. From -A B C Supply 150 150 $10 $17 $20 120 $19 $13 $18 80 70 Demand Based on the given demand and supply, the given transportation problem is unbalanced Before finding the initial solution, a dummy destination should be introduced. The starting solution using northwest-corner method is: (Note: You must enter a shipment in every cell, even if the shipment is 0.) From Dummy Supply $10 $19 $121 150 120 $17 $13 150 $20 S18 Demand 120 a) The total cost of the initial solution developed using the northwest-corner method = $ 1