A man can row a boat at 10 kmph in still water. If the speed of the stream is 6 kmph, what is the time taken to row a distance of 60 km downstream?	Pick.
A) 30/83 hours B) 15/13 hours C) 15/4 hours D) 30/19 hours E) 32/13 hours
Speed downstream = 10 + 6= 
<gadget id="calculator">10 + 6</gadget>
<output>16</output>
16 kmph.   Time required to cover 60 km downstream= d/s = 60/16   = 15/4 hours.   Answer:15/4 hours
<result>C</result>
A man can row a boat at 10 kmph in still water. If the speed of the stream is 6 kmph, what is the time taken to row a distance of 60 km downstream?