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A man can row at 5 kmph in still water. ...

A man can row at 5 kmph in still water. If the velocity of current is 1 kmph and it takes him 1 hour to row to a place and come back, how far is the place? `2. 4 k m` b. `2. 5\ k m` c.`3\ k m` d. `3. 6\ k m`

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