A traveling salesman's territory consists of the 5 cities shown on the following mileage chart. The salesman must organize a round trip that starts and ends at Louisville (his hometown) and will pass through each of the other four cities exactly once.Mileage Chart
The cheapest-link tour starting from Louisville is given by:
A. Louisville, Columbus, Chicago, Buffalo, Boston, Louisville.
B. Louisville, Columbus, Buffalo, Boston, Chicago, Louisville.
C. Louisville, Boston, Buffalo, Chicago, Columbus, Louisville.
D. Louisville, Chicago, Buffalo, Boston, Columbus, Louisville.
E. none of these
Answer: B
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A. 4
B. 5
C. 6
D. 5
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for labor for each trailer. After management purchases a forklift for 
, it costs only 
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