The angle of elevation of an aeroplane from a point on the ground is 4 – McqOptions

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1.	The angle of elevation of an aeroplane from a point on the ground is 45°. After 15 seconds flight, the elevation changes to 30°. If the aeroplane is flying at a height of 3000 m, the speed of the plane in km per hour is
A.	208.34
B.	306.72
C.	402.56
D.	527
Answer» E.

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