Question

A man can swim in still water at a speed of 6 kmph and he has to cross the river and reach just opposite point on the other bank. If the river is flowing at a speed of 3 kmph, and the width of the river is 2 km, the time taken to cross the river is (in hours)

1) 2/27
2)
$\frac{2}{ \sqrt{27} }$
3) 2/3
4)
$\frac{2}{ \sqrt{45} }$

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Answer 1

Answer:

Explanation:

velocity of man =  6.75

time = 2/ 6.75