A man rows his boat 95 km downstream and 45 km upstream, taking 2 1/2 hours each time. Find the speed of the stream?  Select.
A) 5 kmph  B) 7 kmph  C) 9 kmph  D) 8 kmph  E) 10 kmph
Speed downstream = d/t = 95/(2 1/2) = 38 kmph   Speed upstream = d/t = 45/(2 1/2) = 18 kmph   The speed of the stream = (38 - 18)/2= 
<gadget id="calculator">(38 - 18)/2</gadget>
<output>10</output>
10 kmph   Answer:10 kmph
<result>E</result>
A man rows his boat 95 km downstream and 45 km upstream, taking 2 1/2 hours each time. Find the speed of the stream?