The emergency services coordinator for Dade County, Tallys DeCampinas, is interested in locating the county's two ambulances to maximize the number of residents that can be reached within 4 minutes in emergency situations. The county is divided into six regions, and the average times required to travel from one region to the next are summarized in the following table:

The population (in 1,000s) in regions 1 through 6 are estimated, respectively, as 21, 35, 15, 60, 20, and 37. In which two regions should the ambulances be placed?

c. What is the total number of residents that can be reached within 4 minutes?

d. How many ambulances would be required to provide coverage within 4 minutes to all residents?

From Region No 2 | POV 3 To Region 4 NOVO From Region No 2 | POV 3 To Region 4 NOVO