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In an office that employees 120 people, m% of the employees

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Senior Manager
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In an office that employees 120 people, m% of the employees [#permalink] New post 24 May 2010, 01:07
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33% (01:01) correct 67% (01:37) wrong based on 3 sessions
In an office that employees 120 people, m% of the employees are male, and c% of the employees are members of the custodial staff. How many employees are females who are not members of the custodial staff?

1) m + c = 50

2) The number of female employees who are members of the custodial staff is four.
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Re: females who are not members of the custodial staff? [#permalink] New post 24 May 2010, 02:00
Is it E as we do not know the no. of female employees even after considering any of the 2 statements.. So it remains a variable..
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Re: females who are not members of the custodial staff? [#permalink] New post 24 May 2010, 02:17
dimitri92 wrote:
In an office that employees 120 people, m% of the employees are male, and c% of the employees are members of the custodial staff. How many employees are females who are not members of the custodial staff?

1) m + c = 50

2) The number of female employees who are members of the custodial staff is four.
+


IMO A,

St 1 mentions the percentage of male + Percetange of custodial employess and what we need is female who are not part of the custodial employess... Froms st 1 we can dedue that its 50 % pr 60 employees.

St 2 Clearly Insufficient -
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Re: females who are not members of the custodial staff? [#permalink] New post 24 May 2010, 04:39
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nitishmahajan wrote:
dimitri92 wrote:
In an office that employees 120 people, m% of the employees are male, and c% of the employees are members of the custodial staff. How many employees are females who are not members of the custodial staff?

1) m + c = 50

2) The number of female employees who are members of the custodial staff is four.
+


IMO A,

St 1 mentions the percentage of male + Percetange of custodial employess and what we need is female who are not part of the custodial employess... Froms st 1 we can dedue that its 50 % pr 60 employees.

St 2 Clearly Insufficient -


I think it's E, because 'c' contains male and female custodial staff members - this means some males are counted twice in 'm+c' and statement 1 is insufficient.
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Re: females who are not members of the custodial staff? [#permalink] New post 27 Jun 2010, 12:03
Stmt 1:
m + c = 50, so we can plugin different values for m & c to get number of male emp & custodial emp. But it will not give a specific value that is required for female emp not in custodial staff. Thus, its insufficient.

Stmt 2: we know that female emp who also are custodial emp is 4 but we need to find the number of female emp in the staff. Hence, its insufficient data.

Combining 1 & 2, we will get different number of male emp & female emp in the office as we are only given a relation in stmt 1. To get the ans, we need to get exact value of male so that Total staff - male emp = female emp.
Then using Stmt 2, we will get female emp - 4 = answer.
As we dont have the exact value of male emp, thus both stmts are insufficient.
Hence ans is E.
Re: females who are not members of the custodial staff?   [#permalink] 27 Jun 2010, 12:03
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