adorendra wrote:I have included the question in attachment

Say there are m males and f females in that company

we want to know m/f

1.) m+f =52; insufficient it doesnt give m/f even with the arithmetic mean data given

2) avg no of years in the company for an employee is 9.3

Total years of experience,T/total no of employees =9.3

T/(m+f) = 9.3 -------(1)

we know Total male exp/m = 9.8 Total female exp/f = 9.1

Total male exp = 9.8m total female exp = 9.1 f

T = total male exp+total female exp

Substituting in (1)

(9.8m+9.1f)/(m+f) = 9.3

dividing numerator and denominator by f

(9.8 m/f +9.1)/(m/f+1)

solvable for m/f

Sufficient

adorendra,

Please use the 'Search' option before you post the question. This question has been discussed several times in this forum. Let's keep this community clean with no redundant posts. Post those questions only if you have any specific doubts in the question that has not been addressed in this site so far.

If there were m males and f females in the company in total, then the total male and female service years, respectively, were 9.8 m and 9.1 f that totals to (9.8 m + 9.1 f) years. Question is, m/f =?

(1) Insufficient

(2) It translates to 9.8 m + 9.1 f = 9.3 (m + n); with this, m/f can be found. Sufficient

[spoiler]B[/spoiler]