Published by:
CGP EDU Academic Team
Published on: August 22, 2026
A balloon is moving up in air vertically above a point 
on the ground. When it is at a height 
girl standing at a distance d(point B) from A (see figure) sees it at an angle 
with respect to the vertical. When the balloon climbs up a further height 
, it is seen at an angle 
with respect to the vertical if the girl moves further by a distance 
(point C). Then the height 
is (given 
:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
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