I have encountered this question on my quiz today.
The question is
Mean annual salary of all employee is 20000 Mean annual salary for male is 22000 Mean annual salary for female is 17000 What is the percentage of female in the company?
I feel like this is a weighted average question but i can't seem to figure out the way to solve this question.
Thank you henry for the advice.
Here is my solution.
22000M + 17000F = 20000(M+F)
22000M + 17000F = 20000M + 20000F
2000M = 3000F 2/3 = f/m
f = 2/5
f = 40%
I believe that this is correct.