Correct Answer - Option 1 : 33.33%
Given:
The average salary of male employees in the firm = Rs. 8000
The average salary of female employees in the firm = Rs. 6400
The mean salary of all the employees of the firm =7600
Calculation:
Let the number of employees = x
Let the number of female employees = y
⇒ Number of male employees is (x - y)
The total salary of employees = 7600x
Accordingly,
7600x = 8000 × (x - y) + (6400 × y)
⇒ 7600x = 8000x - 8000y + 6400y
⇒ (8000 - 7600)x = (8000 - 6400)y
⇒ x/y = 1600/400
⇒ x/y = 4/1
That means, there are 1 female employee per 4 employees in the firm
So, there are 1 female employee per 3 male employees in the firm
The percentage of the female employees of the male employee is (1/3) × 100
⇒ 33%
∴ The required percentage = 33%