Speed of a boat in standing water is 14 kmph and the speed of the stream is 1.2 kmph. A man rows to a place at a distance of 4864 km and comes back to the starting point. The total time taken by him is:	Choose the correct choice from the following.
A) 700 B) 200 C) 540 D) 120 E) 635
Explanation:   Speed downstream =(14+1.2)= 
<gadget id="calculator">(14+1.2)</gadget>
<output>15.2</output>
15.2 kmph   Speed upstream=(14-1.2)= 
<gadget id="calculator">(14-1.2)</gadget>
<output>12.8</output>
12.8 kmph   Total time taken=4864/15.2+4864/12.8=320+380= 
<gadget id="calculator">320+380</gadget>
<output>700</output>
700 hours.   700nswer:700
<result>A</result>
Speed of a boat in standing water is 14 kmph and the speed of the stream is 1.2 kmph. A man rows to a place at a distance of 4864 km and comes back to the starting point. The total time taken by him is: