<PRE><B>Question 1109600</B>
v*t=distance; w=wind speed
(230+w)*t=468, so t=468/(230+w)
(230-w)*t=360, so t=360/(230-w)
Therefore 468/(230+w)=360/(230-w)
cross-multiply
107640-468w=82800+360w
24840=828 w
w=30 mph ANSWER

check
with wind speed is 260 mph and it takes 1.8 hours to go 468 miles
against wind speed is 200 mph and it takes 1.8 hours to go 360 miles
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