Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

Union Express has 60 tons of cargo that need to be shipped from boston to dallas

ID: 404018 • Letter: U

Question

Union Express has 60 tons of cargo that need to be shipped from boston to dallas. The shipping capacity on each of the routes Union Express planes fly each night is shown in the following table:

Nightly Flight Segments               capacity (in tons)

boston to baltimore                              30 tons

boston to pittsburgh                             25 tons

boston to cincinnati                              35 tons

baltimore to atlanta                              10 tons

baltimore to cincinnati                            5 tons

pittsburgh to atlanta                             15 tons

pittsburgh to chicago                            20 tons

cincinnati to chicago                             15 tons

cincinnati to memphis                             5 tons

atlanta to memphis                               25 tons

atlanta to dallas                                    10 tons

chicago to memphis                             20 tons

chicago to dallas                                  15 tons

memphis to dallas                                30 tons

memphis to chicago                             15 tons

Will Union Express be able to move all 60 tons from boston to dallas in one night?

a. Draw a network flow model for this problem.

b. Create a spreadsheet model for the problem and solve it.

c. what is the maximum flow for this network?

Explanation / Answer

So with The help of spread sheet and network analysis diagram it can be noted that the route


from boston to baltimore (can carry 30 tonns) Then from baltimore to cincinnati ( can carry 5 tonns ) then from cincinnati to chicago(can carry 15 tonns) then from chicago to directly dallas ( ultimate destination with 15 tonns capacity)


So , yes the union express can take 60 tons from boston to dallas in one night