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Discussion :: Boats and Streams

  1. A boat travels upstream from B to A and downstream from A to B in 3 hours. If the speed of the boat in still water is 9km/hr and the speed of the current is 3km/hr, the distance A and B is:
    2. A.
    4km
    B.
    6 km
    C.
    8 km
    D.
    12 km

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    Answer : Option D

    Explanation :

    Speed downstream = (9+3) km/hr = 12km/hr 


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