SOLUTION: A train can complete a trip of 'd' miles in 'h' hours. Find the average speed in miles/hrs, if on the next day the train completes the trip 30 min faster than the previous day?
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Question 316915: A train can complete a trip of 'd' miles in 'h' hours. Find the average speed in miles/hrs, if on the next day the train completes the trip 30 min faster than the previous day? Answer by Fombitz(32388) (Show Source):
