A man wishes to swim across a river 0.5 km wide. If he can swim at the rate of 2km/h in still water and the river flows at the rate of 1km/h. The angle (with respect to the flow of the river) along which he should swim so at to reach a point exactly opposite his starting point, should be

Correct Option - 2


Detailed Solution:

From flow of river

$90+30^o=120^{?}$

 

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