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08 Nov 2005, 22:01
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Super Corp employs w women and m men. The avg age of all the women is 31 and the avg age of all men is 33. What is the avg age of all employees at Super corp?
1) 8w/3m = 3m/2w
2) There are 100 more men than women employed at Super Corp.
Please explain.
1) 8w/3m = 3m/2w
2) There are 100 more men than women employed at Super Corp.
Please explain.
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09 Nov 2005, 04:06
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Should be A, shouldn't it?
From (1) you get the ratio of men to woman. Multiply this whith the average age of men and women and you can calculate the average of all employees at Super corp
From (2) you get nothing. 100 employees from 80000 employees or just 8 employees??? The overall average would severly be influenced.
From (1) you get the ratio of men to woman. Multiply this whith the average age of men and women and you can calculate the average of all employees at Super corp
From (2) you get nothing. 100 employees from 80000 employees or just 8 employees??? The overall average would severly be influenced.
09 Nov 2005, 09:00
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from 1) we get 8w/3m = 3m/2w
or 16w^2= 9m^2
since # of employees can not be -ve,
so 4w = 3m
or w/m =3/4
so the average age of al the employee is equal to 3/7*31 +4/7*33 = ??
2) does not help at all.
So A is the answer.
or 16w^2= 9m^2
since # of employees can not be -ve,
so 4w = 3m
or w/m =3/4
so the average age of al the employee is equal to 3/7*31 +4/7*33 = ??
2) does not help at all.
So A is the answer.
