Using the information below answer question #1(this question), 2 3 4 and 5

The Interstate Truck Rental firm has accumulated extra trucks at three of its truck leasing outlets, as shown in the following table:

Leasing Outlets		Extra Trucks
1	Atlanta	70
2	St. Louis	115
3	Greensboro	60

The firm also has four outlets with shortages of rental trucks, as follows:

Leasing Outlets		Truck Shortages
A	New Orleans	80
B	Cincinnati	50
C	Louisville	90
D	Pittsburgh	25

The firm wants to transfer trucks from leasing outlets with extra trucks to those with shortages at the minimum total cost of transportation.

Following is the costs of transporting trucks from outlets with extra trucks to outlets with shortages:

FROM / TO	A	B	C	D
1	$ 70	$ 80	$ 45	$ 90
2	$ 120	$ 40	$ 30	$ 75
3	$ 110	$ 60	$ 70	$ 80

Find the initial feasible solution for the transportation model using Least Cost Method.

Formulate this problem as a Linear Programming Model. (clearly mention the objective function, and all constraints)

Draw the network diagram repressing the transportation.

Find the initial solution for the transportation model using North-West Corner Method

Which of the two methods is cheaper and by how much?