A man can row upstream at 25 kmph and downstream at 43 kmph, and then find the speed of the man in still water?
Select:  A) 86  B) 34  C) 30  D) 15  E) 17
US = 25   DS = 43   M = (43 + 25)/2= 
<gadget id="calculator">(43 + 25)/2</gadget>
<output>34</output>
34   Answer: 34
<result>B</result>
A man can row upstream at 25 kmph and downstream at 43 kmph, and then find the speed of the man in still water?