A swimmer can swin with velocity of 12km/h in still water. Water flowing in a river has velocity 6km/h. The direction with respect to the direction of flow of river water he should swim in order to reach the point on the other bank just opposite to his starting point is ____________ (Rounded off to the nearest integer)
Option: 1 120
Option: 2 40
Option: 3 50
Option: 4 60
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