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

  • question_answer
    The speeds of two trains are in the ratio 6 : 7. If the second train runs 364 km in 4 h, then the speed of first train is

    A) 60 km/h

    B) 72 km/h

    C) 78 km/h

    D) 84 km/h

    Correct Answer: C

    Solution :

    [c] Let speeds of trains are 6x and 7x km/h, respectively. \[\therefore \]    \[7x=\frac{364}{4}\] \[\Rightarrow \]            \[x=\frac{364}{4\times 7}=13\] \[\therefore \]Speed of first train\[=6\times 13=78\,km/h\]


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