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?  Select the correct option:
A) 3.2 km B) 3 km C) 2.4 km D) 3.6 km E) None of these
Explanation :   Speed in still water = 5 kmph   Speed of the current = 1 kmph   Speed downstream = (5+1)= 
<gadget id="calculator">(5+1)</gadget>
<output>6</output>
6 kmph   Speed upstream= (5-1)= 
<gadget id="calculator">(5-1)</gadget>
<output>4</output>
4 kmph   Let the requited distance be x km   Total time taken= 1 hour   =&gt; x/6 + x/4 = 1   =&gt; 2x + 3x = 12   =&gt; 5x = 12   =&gt; x = 2.4 km. Answer : Option 2.4 km
<result>C</result>
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?