12. A train 120 metres long passes an electric pole in 12
seconds and another train of same length traveling in
opposite direction in 8 seconds. The speed of the second
train is

Answer Posted / shohil sethia

The question hasn't asked about crossing of trains ,That part is not required ,its just given for confusing.
you just have to concentrate on the second part.
That is time taken to cross the pole by the second train and length which is equal of both train.
therefore answer is,
speed=120/8
i.e 15 m/s.

Is This Answer Correct ?    5 Yes 11 No



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