A man can row a boat at 20 kmph in still water. If the speed of the stream is 6 kmph, what is the time taken to row a distance of 66 km downstream?	Answers:
A) 30/83 hours
B) 33/13 hours
C) 31/13 hours
D) 30/13 hours
E) 30/14 hours
Speed downstream = 20 + 6= 
<gadget id="calculator">20 + 6</gadget>
<output>26</output>
26 kmph.   Time required to cover 66 km downstream= d/s = 66/26   = 33/13 hours.   Answer:33/13 hours
<result>B</result>
A man can row a boat at 20 kmph in still water. If the speed of the stream is 6 kmph, what is the time taken to row a distance of 66 km downstream?