A man can row a boat at 20 kmph in still water. If the speed of the stream is 8 kmph, what is the time taken to row a distance of 60 km downstream?  Choices:
A) 30/18
B) 30/29
C) 30/14
D) 30/13
E) 30/82
Speed downstream = 20 + 8= 
<gadget id="calculator">20 + 8</gadget>
<output>28</output>
28 kmph.   Time required to cover 60 km downstream= d/s = 60/28   = 30/14 hours.   Answer:30/14
<result>C</result>
A man can row a boat at 20 kmph in still water. If the speed of the stream is 8 kmph, what is the time taken to row a distance of 60 km downstream?