A man on the top of a vertical observation tower observes a car moving at a uniform speed coming dir...........

Quantitative Aptitude ( CCS) Height and Distance

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A man on the top of a vertical observation tower observes a car moving at a uniform speed coming directly towards it. If it takes 12 minutes for the angle of depression to change from 30° to 45°, how soon after this will the car reach the observation tower ?

14 min. 35 sec.

15 min. 49 sec.

16 min. 23 sec.

18 min. 5 sec.

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