A man can row downstream at 18 kmph and upstream at 16 kmph. Find the speed of the man in still water and the speed of stream respectively?  Choose one:
A) 13, 3
B) 12, 6
C) 15, 3
D) 14, 4
E) 17, 1
Explanation:   Let the speed of the man in still water and speed of stream be x kmph and y kmph respectively.   Given x + y = 18 --- (1)   and x - y = 16 --- (2)   From (1) &amp; (2) 2x = 34 =&gt; x = 17, y = 1.   Answer: Option 17, 1
<result>E</result>
A man can row downstream at 18 kmph and upstream at 16 kmph. Find the speed of the man in still water and the speed of stream respectively?