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 km
2.5 km
3 km
3.6 km

Correct Answer: 2.4 km

Explanation:

Speed downstream = (5 + 1) kmph = 6 kmph.

Speed upstream = (5 - 1) kmph = 4 kmph.

Let the required distance be x km.

Then,	x	+	x	= 1
	6		4

⟹ 2x + 3x = 12

⟹ 5x = 12

⟹ x = 2.4 km.

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