A person walking along a straight road towards a mobile tower observe at two points at a distance of...........

Quantitative Aptitude (CDS) Height and Distance

A person walking along a straight road towards a mobile tower observe at two points at a distance of 30 km. The angle of elevation of the mobile tower is 30 degree and 60 degree. The height of the mobile tower is?

20 m

15 √3 m

20 √3 m

15 m

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Explanation:

tan 30 °=h/x+30

1/√3 =h/x+30

X+30=√3 h …. equation1

tan 60 °=h/x

√3 x=h …….equation2

Solving equation 1 and 2

h/√3 +30=√3 h

h(√3 -1/√3 )=30

h(2/√3 )=30

h=15 √3 m

By: bhavesh kumar singh

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A person walking along a straight road towards a mobile tower observe at two points at a distance of...........

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