Management Aptitude Test Feb 2012 Paper

Question : 113 of 200

Marks: +1, -0

An electrician has to repair an electric fault on a pole of height 4 m. He needs to reach a point 1.3 m below the top of the pole to undertake the repair work. The length of the ladder that he should use, which when inclined at an angle of 60° to the horizontal would enable him to reach the required position is

(9 $√3$ )/10 m
(3 $√3$ )/10 m
(3 $√3$ )/5 m
(9 $√3$ )/5 m

Validate

Solution:

(4 ) Let height of ladder BD = x m
In ΔBCD,

sin 60° =

2.7/{BD}

⇒ x =

2.7/{√3\/2}

⇒ x =

5.4/{√3}×√3/√3

x = 1.8

√3

{9√3}/5

Go to Question:

Prev Question

Next Question