<PRE><B>Question 275331</B>
Basic speed is X, so speed with wind is X + W and against is X - W
3600/(X + W) = 6
3600/(X - W) = 8

3600 = 6(X + W)
3600 = 8(X - W)
6X + 6W = 8X - 8W
2X = 14W
X = 7W
Substituting
3600/ 8W = 6
3600 = 48W
W = 75
X = 525

With wind, speed is 600 which takes 6 hours for 3600 miles
Against wind speed is 450 which takes 8 hours for 3600 miles
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