Multiple Choice Questions on A Man standing on a railway platform observe that a train going in one direction takes 6 second to p........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A Man standing on a railway platform observe that a train going in one direction takes 6 second to p...........

Quantitative Aptitude ( CCS) Problems on trains
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    A Man standing on a railway platform observe that a train going in one direction takes 6 second to pass him. Another train of same length going in opposite direction takes 5 seconds to pass him. The time taken (in seconds) by two train to cross each other will be:

    55sec

    Incorrect Answer

    44/9sec

    Incorrect Answer

    60/11sec

    Correct Answer

    39sec

    Incorrect Answer
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    Explanation:

    Solution: 
    Let length of each train be X m, then
    S1 = X/6 and S2 = X/5.
    Time = {2x/[(X/6)+(X/5)]}
    = 60/11 seconds.

    By: Pranav Gupta
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