A swimmer crosses a flowing stream of width 'omega'to and fro in time t_(1).The time taken to cover the same distance up & down the stream is t_(2).ift_(3) is the time swimmer would take to swim a distance2 omega in still water. Then:

A swimmer crosses a flowing stream of width 'omega'to and fro in time

1.	A swimmer crosses a flowing stream of width 'omega'to and fro in time t_(1).The time taken to cover the same distance up & down the stream is t_(2).ift_(3) is the time swimmer would take to swim a distance2 omega in still water. Then:
Answer» `t_(1)^(2)=t_(2)t_(3)` `t_(2)^(2)=t_(1)t_(3)` `t_(3)^(2)=t_(1)t_(3)` `t_(3)=t_(1)+t_(2)` ANSWER :A