RRB Junior Engineer Stage 1 Model Papers 6

Question : 26 of 99

Marks: +1, -0

From the top of a light-house at a height 20 metres above sea-level, the angle of depression of a ship is 30°. The distance of the ship from the foot of the light-house is

20 m
$20√3 m$
30 m
$30√3m$

Validate

Solution:

\tan 30°=20/x,1/√3=20/x

x=20√3

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