A swimmer wants to reach to a point just opposite on the other bank of the river. How  should he swim and why ?

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A swimmer wants to reach to a point just opposite on the other bank of the river. How  should he swim and why ?

Question: A swimmer wants to reach to a point just opposite on the other bank of the river. How  should he swim and why ?

Answer: 

When a swimmer swim in opposite flow of river the velocity of river throw him with flow. But when he go straight river will take him far from target. That's why he should swim in opposite flow of river.

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