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A flag staff of 5 mts high stands on a b...

A flag staff of 5 mts high stands on a building of 25 mt high. At an observer at a height of 30 mt the flag staff and the building subtend equal angles. The distance of the observer from the top of the flag staff is

A

`10sqrt(2)`

B

`20sqrt(2)`

C

`30sqrt(2)`

D

`40sqrt(2)`

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The correct Answer is:
A
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AAKASH SERIES-HEIGHTS AND DISTANCES-LECTURE SHEET Exercise-I (Straight Objective Type Questions)
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