Question 360260
A twin-engined aircraft can fly 648 miles from city A to B in 3 hours with the wind and make the return trip in 6 hours against the wind. What is the speed of the wind?
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distance = 648
time = 3 hours
speed with wind = 648/3 = 216 mph
speed of wind = x
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against wind speed = 648/6 = 108 mph

,..
216-x=x+108
216-108=2x
108=2x
x= 58 mph wind rate
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