Discussion of Question with ID = 089 under Problems-on-Trains

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A train running at 10km/h leaves a railway station 45 hours later than another train, and meets it in 5 hours. What is the speed of the other train?


1 km/h.


2 km/h.


4 km/h.


3 km/h.

Ans: a

Let the speed of the train be v km/h. Distance travelled by this train in (5 + 45) hours = 50v km. Equating this to the distance travelled by the second train we get 50v = 10 × 5, which gives v = 1 km/h.

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