A man can row a boat at 20 kmph in still water. If the speed of the stream is 9 kmph, what is the time taken to row a distance of 60 km downstream?	Choose one
A) 30/18 hours	B) 37/13 hours	C) 80/13 hours	D) 30/13 hours	E) 60/29 hours
Speed downstream = 20 + 9= 
<gadget id="calculator">20 + 9</gadget>
<output>29</output>
29 kmph.   Time required to cover 60 km downstream= d/s = 60/29   = 60/29 hours.   Answer: 60/29 hours
<result>E</result>
A man can row a boat at 20 kmph in still water. If the speed of the stream is 9 kmph, what is the time taken to row a distance of 60 km downstream?