TS EAMCET Medical 2018 May 3 Shift 1Paper

Two boys, both swim at 2.5 km/h across a river with the water velocity of 2 km/h. First boy starting from point A on one side of the river crosses the river along a straight line path reaching point B on the other side of the river. AB being perpendicularto the stream. The other boy starts from the same point A and swims right angles to the stream and reaches point C on the other side of the river and walks back to the point B with a velocity u. If both boys reach point B at the same time, the valueof it is