An undercover police officer is assigned the job of once a night walking each of the 48 blocks of a certain section of town described by the street grid shown below. The walk starts and ends at A. The officer wants to minimize the total number of blocks he has to walk each night.
Suppose that it takes the officer 5 minutes to walk a block. In an optimal trip, the officer will cover the entire neighborhood in
A. 5 hours.
B. 4 hours and 45 minutes.
C. 4 hours and 50 minutes.
D. 5 hours and 10 minutes.
E. none of these
Answer: A
Mathematics
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