A train takes 2 hours less for a journey of 300 km, if its speed is increased by 5 km/h from its usual speed. Find the usual speed of the train.

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asked Feb 1, 2018 in Mathematics by Kundan kumar (49,132 points) 34 380 1014
A train takes 2 hours less for a journey of 300 km, if its speed is increased by 5 km/h from its usual speed. Find the usual speed of the train.

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answered Feb 1, 2018 by Vikash Kumar (144,729 points) 8 11 21
 
Best answer

Let the usual speed of the train=x km/h.

Therefore, time is taken to cover 300 km=300/x hours.......(i)

When its speed is increased by 5 km/h, then time is taken by the train to cover the distance of

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