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Discussion :: Boats and Streams

  1. The speed of a boat in still water in 15 km/hr and the rate of current is 3 km/hr. The distance travelled downstream in 12 minutes is:

    2. A.

    1.2 km
    B.

    1.8 km
    C.

    2.4 km
    D.

    3.6 km

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    Answer : Option D

    Explanation :

    Speed downstream = (15 + 3) kmph = 18 kmph.

     

    Distance travelled =[18x\( \frac { 12 } { 60}] \)km = 3.6 km

     

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