A car is being driven, in a straight line and at a
uniform speed, towards the base of a vertical tower.
The top of the tower is observed from the car and,
in the process, it takes 10 minutes for the angle of
elevation to change from 45o
to 60o
. After how much
time will this car reach the base of the tower ?
(A) 5( 3 1) + mins
(B) 6( 3 2) + mins
(C) 7( 3 1) − mins
(D) 8( 3 2) − mins
(E) None of these
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Answer:
Answer: It takes 16.43 minutes for the car to reach the observation tower.
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