A person from the top of a hill observes a vehicle moving towards him at a uniform speed. It takes 10 minutes for the angle of depression to change from 45 to 60 . After this the time required by the vehicle to reach the bottom of the hill is

A person from the top of a hill observes a vehicle moving towards him

1.	A person from the top of a hill observes a vehicle moving towards him at a uniform speed. It takes 10 minutes for the angle of depression to change from 45 to 60 . After this the time required by the vehicle to reach the bottom of the hill is
A.	13 min 40 sec
B.	14 min 24 sec
C.	12 min 20 sec
D.	13 min
Answer» B. 14 min 24 sec

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A person from the top of a hill observes a vehicle moving towards him at a uniform speed. It takes 10 minutes for the angle of depression to change from 45 to 60 . After this the time required by the vehicle to reach the bottom of the hill is

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