SOLUTION: Someone drove to the city at a rate of 50 km/h. He returned along the same route at a faster speed, making his average rate for the round trip 60 km/h. What was his returning spee

Question 306365: Someone drove to the city at a rate of 50 km/h. He returned along the same route at a faster speed, making his average rate for the round trip 60 km/h.
What was his returning speed?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Ave speed = (total distance)/(total time)
Let = distance to city
Let = his returning speed
given:
= time to get to city

Multiply both sides by

His return speed was 75 mi/hr
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