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Q

A 400 m long train cross a 200 m long platform in 30 second, the train speed is: .

 

A 400 m long train cross a 200 m long platform in 30 second, the train speed is:

 

  • Option 1)

     

    80 km/hr    

     

  • Option 2)

     

    90 km/hr    

     

  • Option 3)

     

    72 km/hr    

     

  • Option 4)

     

    54 km/hr

     

  • Option 5)

     

    36 km/hr    

     

Answers (1)
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Total Distance = 400 + 200 => 600m

Time = 30 seconds

Speed = 600/30 => 20 m/s or 20 x 18/5 => 72 K/h

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