A man can row upstream at 35 kmph and downstream at 45 kmph, and then find the speed of the man in still water?  Pick:
A) 32 kmph	B) 34 kmph	C) 40 kmph	D) 45 kmph	E) 65 kmph
US = 35   DS = 45   M = (35 + 45)/2= 
<gadget id="calculator">(35 + 45)/2</gadget>
<output>40</output>
40   Answer:40 kmph
<result>C</result>
A man can row upstream at 35 kmph and downstream at 45 kmph, and then find the speed of the man in still water?