The cost of a route is computed by summing the numbers along the edges used. Consider the weighted graph below. The cheapest route starting and ending at A and traversing each edge at least once has what cost? (You are allowed to visit A between the start and end of the route.)

Question

The cost of a route is computed by summing the numbers along the edges used. Consider the weighted graph below.  The cheapest route starting and ending at A and traversing each edge at least once has what cost? (You are allowed to visit A between the start and end of the route.)

Quizplus · Accepted Answer

The cheapest route starting and ending at A and traversing each edge at least once is A-C-B-D-A. The cost of this route is (5+8+9+15) = 37. The other options, such as A-B-C-D-A or A-D-C-B-A, have higher costs.

The Cost of a Route Is Computed by Summing the Numbers