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SSC Quantitative Aptitude Boats & Streams Question Bank Train and Boat (I)

  • question_answer
    Two trains, of same length, are running in parallel tracks in opposite directions with speed 65 km/h and 85 km/h, respectively. They cross each other in 6 s. The length of each train is

    A) 100 m

    B) 115 m

    C) 125 m

    D) 150 m

    Correct Answer: C

    Solution :

    [c] Let length of each train be x m. Then,\[(65+85)\times \frac{5}{18}=\frac{x+x}{6}\] \[\frac{150\times 5\times 6}{18}=2x\] \[\Rightarrow \]            \[2x=250\] \[\therefore \]    \[x=125\,m\]


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