UPSC Civil Services 2016 Prelims General Studies Paper II

Let the number of employees in the company be 100 and the number of male employees in the company be x
So, the number of female employees =100−x
According to the question,

5200x+4200(100−x)

100

=5000
⇒52x+42(100−x)=5000
⇒52x+4200−42x=5000
⇒10x=800⇒x=80
So, there are 80% male employees in the company.