A train requires 7 sec. to pass a pole while it requires 25 sec to cross a stationary train which is 378 m. long. Find the speed of the train in kmph

 

  • Option 1)

     

    75.6

     

  • Option 2)

     

    75.4

     

  • Option 3)

     

    70.8

     

  • Option 4)

     

    21

     

  • Option 5)

     

    76.2

     

Answers (1)

In 7 seconds train is crossing pole and in 25 seconds it is crossing a train of 378 meters.

From this line, we can conclude that in another 18 seconds he covered 378 meters.

So, Speed of train = 378/18 => 21 m/s

Speed in Km/h = 21 x 18/5 => 75.6 Km/hr

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