5-13a)

Marc Hernandez s construction firm currently has three projects in progress. Each requires a specific supply of gravel. There are three gravel pits avail- able to provide for Hernandezs needs, but shipping costs differ from location to location. The following table summarizes the transportation costs:

1. Determine Hernandezs optimal shipping quanti- ties so as to minimize total transportation costs.

5-26)

A trauma center keeps ambulances at locations throughout the east side of a city in an attempt to mini- mize the response time in the event of an emergency. The times, in minutes, from the ambulance locations to the population centers are given in the table at the top of the next column.

Find the optimal assignment of ambulances to popu- lation centers that will minimize the total emergency response time.?