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Railways Sample Paper RRBs Assistant Loco Pilot and Technician CBT STAGE-I Sample Paper-10

  • question_answer
    A boat covers a certain distance downstream in 4 h but takes 6 h to return upstream to the starting point. If the speed of the stream be 2 km/h, find the speed of the boat in still water.

    A)  5 km/h

    B)  8 km/h

    C)  7 km/h

    D)         10 km/h

    Correct Answer: D

    Solution :

    Speed of boat in still water \[=2\left( \frac{6+4}{6-4} \right)\,\,km/h=2\times \frac{10}{2}=10\,\,km/h\]


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