A train takes 5 second to pass as electric pole. If the length of the train is 120 metres

A train takes 5 second to pass as electric pole. If the length of the train is 120 metres, the time taken by it to cross a railway platform 180 metres long is
(a) 12 ½ seconds
(b) 7 ½ seconds
(c) 6 ½ seconds
(d) 3 1/3 seconds

Anurag Mishra Professor Asked on 13th March 2016 in Maths.
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    Answer: (b) 7  1/2 seconds 

    Anurag Mishra Professor Answered on 13th March 2016.
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