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  1. A train 110 metres long is running with a speed of 60 kmph. In what time will it pass a man who is running at 6 kmph in the direction opposite to that in which the train is going?
    2. A.

    5 sec
    B.

    6 sec
    C.

    7 sec
    D.

    10 sec

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    Answer : Option B

    Explanation :

    Speed of train relative to man = (60 + 6) km/hr = 66 km/hr.

       =  \([ 66 * \frac { 5 } { 18 } ]\)     m/sec
     
       = \([\frac { 55 } { 3 }]\)     m/sec.
     
     Time taken to pass the man = [\( 110 *\frac { 3 } { 55 } ]\)       sec = 6 sec.
     

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