A man can row at 4 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?  Choose the correct option:
A) 2.4 km
B) 2.9 km
C) 3.4 km
D) 1.9 km
E) 5.6 km
Explanation:   Speed in still water = 4 kmph   Speed of the current = 1 kmph   Speed downstream = (4+1)= 
<gadget id="calculator">(4+1)</gadget>
<output>5</output>
5 kmph   Speed upstream= (4-1)= 
<gadget id="calculator">(4-1)</gadget>
<output>3</output>
3 kmph   Let the required distance be x km   Total time taken= 1 hour   â‡’ x/5+x/3=1   â‡’3x+5x=15   â‡’8x=15   â‡’x=1.9 km   Answer: Option 1.9 km
<result>D</result>
A man can row at 4 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?