Fewpal
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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? 

a) 2.4 km

b) 2.5 km 

c) 3 km 

d) 3.6 km

1 Answer

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Best answer

Correct option: a) 2.4 km

Explanation:

Speed downstream=(5+1) kmph= 6 kmph; speed upstream=(5-1) kmph= 4 kmph let the required distance be x. 

Then (x/6)+(x/4)=1 or 2x+3x=12 or 5x=12 or x=2.4 km

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