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1. What is the length of a running train? I.  The train crosses a man in 9 seconds.  II.  The train crosses a 240 metre long platform in 24 seconds.






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  • By: guest on 01 Jun 2017 05.48 pm
    Time taken by train to cross a man = Length of train       Speed = l ....(i) Speed of train 9 Time taken by train
    to cross a platform = (Length of train +
    Length of platform)      Speed = l + 240 ....(ii) Speed of train 24 From (i) and (ii), we get l = l + 240 . 9 24 Thus, l can be obtained. So both I and II are necessary to get the answer. The correct answer is (E).
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