A delivery service must deliver packages at Buckman B Chatfi

A delivery service must deliver packages at Buckman (B), Chatfield (C), Dayton (D), and Evansville (E), and then return to Arlington (A), the homo base. Figure above shows a graph of the estimated travel times (in minutes) between the cities. Find the cheapest-link tour. What is the total travel time of this tour?

This is the correct method.

And answer for both the question is correct.total time is 323 minutes.