A man can row upstream at 25 kmph and downstream at 35 kmph, and then find the speed of the man in still water?
Choose one:	A) 28	B) 27	C) 30	D) 29	E) 12
US = 25   DS = 35   M = (35 + 25)/2= 
<gadget id="calculator">(35 + 25)/2</gadget>
<output>30</output>
30   Answer: 30
<result>C</result>
A man can row upstream at 25 kmph and downstream at 35 kmph, and then find the speed of the man in still water?