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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?

A

15 min 32 sec

B

16 min 32 sec

C

17 min 32 sec

D

18 min 32 sec

Text Solution

Verified by Experts

The correct Answer is:
B
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