An airplane travels from east to west with a velocity 450 mi/hr relative to the Earth. At the same time the wind is blowing from west to east at 50 mi/hr. What is the speed of the plane with respect to the air?
A. 500 mi/hr
B. More than 400 mi/hr but less than 450 mi/hr
C. 400 mi/hr
D. 450 mi/hr
E. More than 450 mi/hr but less than 500 mi/hr
Answer: A
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