MetroEye: The average speed = DistancetravelledTimeTaken
Time taken for the to-travel = 20miles30milesperhour
Time taken for the from-travel = 20miles12milesperhour
Total time = 2030 + 2012 = 23 + 53 = 73 hours = 73 * 60 = 140 minutes = 2 hour 20 minutes
The man took 2 hours 20 minutes in driving to and from the shopping center.
waiit, whats the average speed?
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