The average age of all the 100 employees in an office is 29 years where 2 5 employees are ladies and...........

Quantitative Aptitude ( CCS) Average

The average age of all the 100 employees in an office is 29 years, where 2/5 employees are ladies and the ratio of average age of men to women is 5 : 7. The average age of female employees is

26yrs

28yrs

35yrs

32yrs

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Explanation:

Solution:
Let the average of men and women be 5x and 7x resp.
(3*5x/5)*100 + (2*7x/5)*100=29*100
300x+280x = 2900
X=5.
Then average age of females 7x=7*5=35yrs.