Q 3030191012.     A man on the top of a rock observed a boat coming towards the rock with a uniform speed. It takes `15` minutes for the angle of depression to change from `30^{\circ}` to ` 60^{\circ}` then what time will the boat take to reach the shore?

A

`5` mintues

B

`10` mintues

C

`7\frac{1}{2}` mintues

D

` 2\frac{1}{2}` mintues

Find instant solution to any question from our database of 1.5 Lakh + Questions

 

Access free resources including

Engineering

Medical

Banking

DEFENCE

SSC

RRB

CBSE-NCERT

OLYMPIAD

Today's Score

0
Success Rate: NAN %

Practice & Test

Sr. No.SubjectTagCorrectRecorded Answer