Question

There are 100 employees in a office and the average age of its employees in an office is 29. 2/5th of the total employees are female and the ratio of the average ages of male and female is 5:7. Find the average age of female employees

Answer 1

Answer:

Total no. of employees =100

No. of females= 2/5 of 100= 40

No. of males = 60.

Avg. of employee= 29

Sum of ages of all the employees= 29×100= 2900

ratio of average age of men to women is 5 : 7

Let the avr of men = 5X and avg of women =7X

5X ×60+ 7X×40 =2900

X=5

Average age of female employees= 5 ×7=35