A person can row 8 1/2 km an hour in still water and he finds that it takes him twice as long to row up as to row down the river.
Question 1:
A person can row 8 1/2 km an hour in still water and he finds that it takes him twice as long to row up as to row down the river. The speed of the stream ?
A.1.78 kmph
B.2.35 kmph
C.2.83 kmph
FeedbackGiven speed of the person = 8 1/2 = 17/2 kmph Let the speed of the stream = x kmph speed of upstream = 17/2 - x speed of downstream = 17/2 + x But given that, 2(17/2 - x) = 17/2 + x => 3x = 17/2 => x = 2.83 kmph.
D.3.15 kmph
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