A man can row upstream at 45 kmph and downstream at 55 kmph, and then find the speed of the man in still water?	Choices.
A) 32 kmph B) 34 kmph C) 30 kmph D) 50 kmph E) 65 kmph
US = 45   50 kmphS = 55   M = (45 + 55)/2= 
<gadget id="calculator">(45 + 55)/2</gadget>
<output>50</output>
50   Answer:50 kmph
<result>D</result>
A man can row upstream at 45 kmph and downstream at 55 kmph, and then find the speed of the man in still water?