Verify mobile number to view the solution
Solutions
Number of male employees in HR = 8x
Number of male employees in IT = 7x
Number of male employees in Sales = 7x – 5
8x + 7x = 7x – 5 + number of male employees in Finance
Number of male employees in Finance = 8x + 5
7x – 5 = 30 + 1/2 * 7x
x = 10
Number of male employees in HR = 10 * 8 = 80
Number of male employees in IT = 7 * 10 = 70
Number of male employees in Sales = 70 – 5 = 65
Number of male employees in Finance = 80 + 5 = 85
Total number of male employees = 80 + 70 + 65 + 85 = 300
Total number of female employees = 2/3 * 300 = 200
Number of female employees in IT = 200 * 25/100 = 50
Number of female employees in HR = 2y
Number of female employees Finance = 2y * 50/100 = y
Number of female employees in Sales = 2y
2y + y + 2y + 50 = 200
5y = 150
y = 30
Number of female employees in HR = 2 * 30 = 60
Number of female employees in Sales = 2 * 30 = 60
Number of female employees in Finance = 30

Total number of employees in IT = 70 + 50 = 120
Total number of employees in HR = 80 + 60 = 140
Required average = (140 + 120) /2 = 130