Subject

    Bank Exam

    Topic

    Rajshahi Krishi Unnayan Bank - 2014 (SO)

    A boat goes 13 km upstream (against current) in 39 minutes. The speed of stream (current) is 3 km/hr. What is the speed of the boat in still water?

    ক)
    23 km/hr
    খ)
    27 km/hr
    গ)
    17 km/hr
    ঘ)
    20 km/hr

    Explanation

    B-C = 60*13/39 =20km/hr C = 3km/hr SO, B =20+3 = 23kmph

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