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A swimmer can swim in still water with a...

A swimmer can swim in still water with a speed of 2.5 m/s. What is the shortest time taken by him to swim across the river?

A

4 seconds

B

5 seconds

C

6.7 seconds

D

8 seconds

Text Solution

Verified by Experts

The correct Answer is:
a
For shortest time swimmer should swim perpendicualr to the river flow `t=(10)/(25)=4 sec`
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