A man standing at a point P is watching the top of a tower, which makes an angle of elevation of 30° with the man’s eye. The man walks some distance towards the tower to watch its top and the angle of the elevation becomes 60°. What is the distance between the base of the tower and the point P?
Choose the correct choice from the following options:
A) 4√3 units	B) 8 units	C) 12 units	D) Data inadequate	E) None
Solution   One of AB, AD and CD must have been given.So, the data is inadequate.   Answer Data inadequate
<result>D</result>
A man standing at a point P is watching the top of a tower, which makes an angle of elevation of 30° with the man’s eye. The man walks some distance towards the tower to watch its top and the angle of the elevation becomes 60°. What is the distance between the base of the tower and the point P?