1.

A Man Rows His Boat 85 Km Downstream And 45 Km Upstream, Taking 2 1/2 Hours Each Time. Find The Speed Of The Stream?

Answer»

Speed downstream = d/t = 85/(2 1/2) = 34 kmph

Speed upstream = d/t = 45/(2 1/2) = 18 kmph

The speed of the stream = (34 - 18)/2 = 8 kmph.

Speed downstream = d/t = 85/(2 1/2) = 34 kmph

Speed upstream = d/t = 45/(2 1/2) = 18 kmph

The speed of the stream = (34 - 18)/2 = 8 kmph.



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