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A river is flowing from east to west at ...

A river is flowing from east to west at a speed of `5m//min`. A man on south bank of river, capable of swimming `10m//min` in still water, wants to swim across the river in shortest time. He should swim

A

due forth

B

due noth-east

C

due north-east with double the speed of river

D

none of the above

Text Solution

Verified by Experts

The correct Answer is:
A

For shortest time he has to cross the river with swimming perpendicualr to flow i.e. due north
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