Table 9-3
To demonstrate the personal touch that is part of the Apple experience, Tim Cook decides to personally deliver the first iCar produced in San Jose to the customer's home in Nashville.In order to minimize the carbon footprint, he decides to push the car rather than actually driving it, and since his time is valuable, he wants to choose the shortest route possible.Fortunately, the first genius he talks to at The Genius Bar is able to determine the drive times between cities Tim might pass through along the way to Nashville.The cities and drive times are shown in the table - the push time is assumed to be a direct multiple of the drive time, which will act as a surrogate to keep the numbers low.

-How many decision variables are needed to model the scenario described in Table 9-3 using LP?
A)11
B)12
C)13
D)14

Question

Table 9-3
To demonstrate the personal touch that is part of the Apple experience, Tim Cook decides to personally deliver the first iCar produced in San Jose to the customer's home in Nashville.In order to minimize the carbon footprint, he decides to push the car rather than actually driving it, and since his time is valuable, he wants to choose the shortest route possible.Fortunately, the first genius he talks to at The Genius Bar is able to determine the drive times between cities Tim might pass through along the way to Nashville.The cities and drive times are shown in the table - the push time is assumed to be a direct multiple of the drive time, which will act as a surrogate to keep the numbers low.
 
-How many decision variables are needed to model the scenario described in Table 9-3 using LP?
A)11 
B)12 
C)13 
D)14

Quizplus · Accepted Answer

The decision variables needed for this scenario include the push times for each city along the route (6), the total push time (1), the total drive time (1), the total time (1), the distance traveled (1), and the number of cities visited (1). This adds up to a total of 12 decision variables, so the best choice is B.

Table 9-3 to Demonstrate the Personal Touch That Is Part of the of the Apple