Multiple Choice Questions on A train 100m long passes a man running at 6km h in the direction opposite to that of the train in 6 ........... for CDS Exam Preparation

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Multiple Choice Questions

A train 100m long passes a man running at 6km h in the direction opposite to that of the train in 6 ...........

Quantitative Aptitude (CDS) Problems on trains
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    A train 100m long passes a man, running at 6km/h in the direction opposite to that of the train, in 6 seconds.The speed of the train is?

    66 km/h
     

    Incorrect Answer

    45 km/h
     

    Incorrect Answer

    54 km/h
     

    Correct Answer

    none of these

    Incorrect Answer
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    Explanation:

    let train speed is x km/h
    Train length is 110m
    time to cross t=6 in hour t=6/3600
    time=distance/time
    t=(110/1000)/ (6+x)
    6/3600=(100/1000)/ (6+x)
    1/600=(10/100)/(6+x)
    6+x=60
    x=54 km/h

    By: bhavesh kumar singh
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