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The velocity of a boat in still water is...

The velocity of a boat in still water is 10 m/s. If water flows in the river with a velocity of 6 m/s what is the difference in times taken to cross the river in the shortest path and the shortest time. The width of the river is 80 m.

A

1 s

B

10s

C

`(sqrt(3))/(2) s`

D

`2s`

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The correct Answer is:
D
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