A man can row downstream at the rate of 18 Kmph and upstream at 6 Kmph. Find the man’s rate in still water and rate of current? Choose the correct option.
A) 8.5  B) 6.0  C) 9.5  D) 9.0  E) 8.25
Rate of still water = 1/2 (down stream + upstream)   = 1/2 (18 + 6) = 12 Kmph   rate of current = 1/2 (down stream - upstream)   = 1/2 (18 - 6)   = 1/2 (12)   = 6 kmph   Answer is 6.0.
<result>B</result>
A man can row downstream at the rate of 18 Kmph and upstream at 6 Kmph. Find the man’s rate in still water and rate of current?