Multiple Choice Questions on A train 105 m long passes a person running at 2 kmph in the direction opposite to that of the train ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A train 105 m long passes a person running at 2 kmph in the direction opposite to that of the train ...........

Quant (SSC) Problems on trains
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    A train 105 m long passes a person, running at 2 kmph in the direction opposite to that of the train, in 2 seconds. The speed of the train is:

    100 kmph

    Incorrect Answer

    123 kmph

    Incorrect Answer

    100 kmph

    Correct Answer

    144 kmph

    Incorrect Answer
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    Explanation:

    Speed of the train relative to  person
    = (105 /2)m/sec.
    ⇒ (105/2 x 18/5) = 189 km/hr
    Let speed of the train be x kmph.
    Then, relative speed ⇒ (x + 2) = 189 
    ⇒ x = 187 kmph.  

    By: Amit Kumar
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