The National Express Parcel Service has established various truck and
The National Express Parcel Service has established various truck and air routes around the country over which it ships parcels. The holiday season is approaching, which means a dramatic increase in the number of packages that will be sent. The service wants to know the maximum flow of packages it can accommodate (in tons) from station 1 to station 7. The network of routes and the flow capacities (in tons of packages per day) along each route are shown in the following network:


Determine the maximum tonnage of packages that can be transported per day from station 1 to station 7 and indicate the flow along eachbranch.
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