The stream of a river is flowing with a speed of 2 km/h. A swimmer can swim at a speed of 4 km/h. What should be the direction of the swimmer with respect to the flow of the river to cross the river straight?

The stream of a river is flowing with a speed of 2 km/h. A swimmer can

1.	The stream of a river is flowing with a speed of 2 km/h. A swimmer can swim at a speed of 4 km/h. What should be the direction of the swimmer with respect to the flow of the river to cross the river straight?
A.	90°
B.	150°
C.	120°
D.	60°
Answer» D. 60°