question_answer

An aeroplane, when 3000 m high, passes vertically above another plane at an instant when the angles of elevation of the two aeroplanes from the same point on the ground are \[60{}^\circ \]and \[45{}^\circ \] respectively. Find the vertical distance between the two aeroplanes.

A)  1012 m           

B)  1268 m

C)  927 m             

D)  1297 m                                   

E)  None of these