GATE EC 2014 Set 3 — Question 8
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Question
A man can row at km per hour in still water. If it takes him thrice as long to row upstream, as to row downstream, then find the stream velocity in km per hour.
Correct answer
4 to 4
Solution
Let the speed of the man in still water be km/hr.
Let the speed of the stream be km/hr.
Speed downstream,
Speed upstream,
Let the distance be .
Time taken to row downstream,
Time taken to row upstream,
Given that :The stream velocity is km/hr.
Let the speed of the stream be km/hr.
Speed downstream,
Speed upstream,
Let the distance be .
Time taken to row downstream,
Time taken to row upstream,
Given that :The stream velocity is km/hr.
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