A car travels a distance of 60 miles at
an average speed of 30 mph. How fast would the car have to travel the
same 60 mile distance home to average 60 mph over the entire trip?
Most
people say 90 mph but this is actually a trick question! The first leg
of the trip covers 60 miles at an average speed of 30 mph. So, this
means the car traveled for 2 hours (60/30). In order for the car to
average 60 mph over 120 miles, it would have to travel for exactly 2
hours (120/60). Since the car has already traveled for 2 hours,
it is impossible for it to average 60 mph over the entire trip.
(iBankingFAQ.com)
(iBankingFAQ.com)
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