Question 1001294
Same problem, different numbers.
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It took a plane 2 hours to make a trip with the head wind and 1.5 hours to get back with the tail wind. If the speed of the wind was 30mph, how far apart are the two cities?
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 a = plane's airspeed
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 d = r*t = (a-30)*2 = (a+30)*1.5
 2a - 60 = 1.5a + 45
 a = 210 mi/hr
 d = (210-30)*2
 d = 360 miles