A man can row upstream at 27 kmph and downstream at 35 kmph, and then find the speed of the man in still water?
Pick one.
A) 31	B) 92	C) 30	D) 32	E) 23
US = 27   DS = 35   M = (35 + 27)/2= 
<gadget id="calculator">(35 + 27)/2</gadget>
<output>31</output>
31   31nswer:31
<result>A</result>
A man can row upstream at 27 kmph and downstream at 35 kmph, and then find the speed of the man in still water?