A woman can row upstream 5 kmph and downstream 10 kmph. Find the woman rate in still water and rate of the stream.	Options: A) 2.5,2.5 B) 7.5,2.5 C) 5.5,2.5 D) 5,2.5 E) 1.5,2.5
Explanation:   Please remember,   If a is rate downstream and b is rate upstream   Rate in still water = 1/2(a+b)   Rate of current = 1/2(a-b)   =&gt; Rate in still water = 1/2(10+5) = 7.5 kmph   =&gt; Rate of current = 1/2(10-5) = 2.5 kmph   Option 7.5,2.5
<result>B</result>
A woman can row upstream 5 kmph and downstream 10 kmph. Find the woman rate in still water and rate of the stream.