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(Q)   A car is on a 1 mile circular track.  On its first lap it averages 30 MPH.  How fast would it need to go on its second lap to average 60 MPH for BOTH laps?

(A)   It is impossible.  It takes 2 minutes for a car to travel 1 mile when averging 30 MPH.  If a car averages 60 MPH for 2 miles it also takes 2 minutes which would have been used up in the first mile in this question.

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