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Two boatman must swim across the river f...

Two boatman must swim across the river from point A to point B . One of them sends a boat on the line AB and on reaching the opposite shore, he is at the point C(figure). In order to reach point B, it moves upstream from point C to point B.

The second boatman guides the boat so that it directly goes B. Which of them will get to point B faster, and how many times ? speed of boats on the water in both cases is the same and equal to V=5 m/s, the rate of flow of water is 3m/sec. the width of river is 100 m.

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