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SSC Sample Paper Mock Test-12 SSC CGL Tear-II Paper-1

  • question_answer
    In what time will a train 100 m long cross at electric pole, if its speed be 144 km/h?

    A) 2.5 s    

    B)  5 s    

    C)  12.5 s

    D)  \[3\frac{5}{4}\,\,\text{s}\]

    Correct Answer: A

    Solution :

    Speed of the train\[=144\,\,\text{km/h}=144\times \frac{5}{18}=40\,\,\text{m/s}\] When a train crosses a pole, it covers a distance equal to its own length. \[\therefore \]The required time \[=\frac{100}{40}=\frac{5}{2}=2.5\,\,\text{s}\]


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