A man rows his boat 80 km downstream and 38 km upstream, taking 3 hours each time. Find the speed of the stream?	Pick
A) 6
B) 9
C) 7
D) 8
E) 2
Speed downstream = d/t = 80/(3) = 27 kmph   Speed upstream = d/t = 38/(3) = 9 kmph   The speed of the stream = (27 - 9)/2= 
<gadget id="calculator">(27 - 9)/2</gadget>
<output>9</output>
9 kmph   Answer:9
<result>B</result>
A man rows his boat 80 km downstream and 38 km upstream, taking 3 hours each time. Find the speed of the stream?