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This question was created from 9 Integer Programming


218 Gotham City has been divided into eight districts. The
time (in minutes) it takes an ambulance to travel from one
district to another is shown in Table 100. The population of
each district (in thousands) is as follows: district 1, 40;
district 2. 30; district 3, 35: district 4, 20; district 5, 15;
district 6. 50; district 7, 45; district 8. 60. The city has only
two ambulances and wants to locate them to maximize the
number of people who live within 2 minutes of
ambulance. Formulate an IP to accomplish this goal.

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