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A boat man could row his boat with a spe...

A boat man could row his boat with a speed 10 m/sec. He wants to take his boat from P to a point Q just opposite on the other bank of the river flowing at a speed 4 m/sec. He should row his boat–

A

at an angle of `sin^(-1) `(3/5) up the stream

B

at an angle of `sin ^(-1) `(2/5) up the stream

C

at an angle of `sin ^(-1) `( 2/5) down the stream

D

at an angle of `cos ^(-1) (2/5) down the stream

Text Solution

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The correct Answer is:
C
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