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
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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
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