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Boats and Streams

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  1. The speed of a boat in still water is 2 km/hr. If its speed upstream be 1 km/hr, then speed of the stream is ?
    1. 2 km/hr
    2. 3 km/hr
    3. 1 km/hr
    4. None of these
Correct Option: C

Speed in upstream = Speed in still water - Speed of stream.
∵ 1 = 2 - x
∴ x = 2 - 1 = 1 km/hr


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