Asked by Anonymous

On a journey of 600 km, a train was delayed 1 hour and 30 min after having covered 1/4 of the way. To arrive on time at the destination, the engine driver had to increase the speed by 15 km/hour. How long did the train travel for?

Answers

Answered by Reiny
follow the same method I just showed you in your previous post of a very similar problem.
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