A man can row downstream at 28 kmph and upstream at 10 kmph. Find the speed of the man in still water and the speed of stream respectively?
Choices
A) 2, 9
B) 4, 9
C) 8, 9
D) 19, 9
E) 7, 9
Let the speed of the man in still water and speed of stream be x kmph and y kmph respectively.   Given x + y = 28 --- (1)   and x - y = 10 --- (2)   From (1) &amp; (2) 2x = 38 =&gt; x = 19, y = 9.   Answer:19, 9
<result>D</result>
A man can row downstream at 28 kmph and upstream at 10 kmph. Find the speed of the man in still water and the speed of stream respectively?