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 ther river is 2 km, the time taken to cross the river is (in hours)

A man can swim in still water at a speed of 6 kmph and he has to cross

1.	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 ther river is 2 km, the time taken to cross the river is (in hours)
Answer» `(2)/(27)` `(2)/(SQRT(27))` `(2)/(3)` `(2)/(sqrt(45))` ANSWER :B