A man walking at 5 km/hour noticed that a 225 m long train coming in the opposition :

A man walking at 5 km/hour noticed that a 225 m long train coming in the opposition direction crossed him in 9 seconds. The speed of the train is
(a) 75 km/hour
(b) 80 km/hour
(c) 85 km/hour
(d) 90 km/hour

Anurag Mishra Professor Asked on 19th February 2016 in Maths.
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    Answer: (a) 75 km/hour

    Anurag Mishra Professor Answered on 20th February 2016.
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