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SSC CGL 2016 PYQ — Question 92

SSC CGL Tier II Quant - 01/12/2016 • Quantitative Aptitude • Q92

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From the top of a cliff 100 metre high, the angles of depression of the top and bottom of a tower are 45º and 60º respectively. The height of the tower is

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Correct answer: A

Explanation

The correct answer is option 1i.e. 

Application

Figure for the explanation of question 92

 

tan60 = 100/X

√3 = 100/X

height of tower=100 - (100/√3)

=100(√3 - 1)/√3 metre.