A river is flowing from west to east at a speed of 5 m/minute. In what direction should a man on the south bank of the river capable of swimming at 10 m/min, in still water should swim to cross the water in shortest time ?

East

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west

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South

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North

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Solution

The correct option is D North
For shortest time he should make strokes
$∴$ towards North
Hence,
option $(D)$ is correct answer.

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A river is flowing from west to east at a speed of 5 m/minute. In what direction should a man on the south bank of the river capable of swimming at 10 m/min, in still water should swim to cross the water in shortest time ?

The correct option is D NorthFor shortest time he should make strokes ∴ towards NorthHence,option (D) is correct answer.

The correct option is D North
For shortest time he should make strokes
$∴$ towards North
Hence,
option $(D)$ is correct answer.