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In a law office with 23 legal secretaries (all of whom are required to

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In a law office with 23 legal secretaries (all of whom are required to  [#permalink]

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New post 13 Dec 2016, 06:51
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C
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In a law office with 23 legal secretaries (all of whom are required to wear blue or black suits to work), 19 of the secretaries are female. If 2 male secretaries wear blue suits and 12 of the secretaries wear black suits, then how many female legal secretaries wear blue suits?

A. 2
B. 4
C. 9
D. 10
E. 11

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Re: In a law office with 23 legal secretaries (all of whom are required to  [#permalink]

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New post 16 Dec 2016, 02:13
We know total n = 23.

Female = 19
Male = 23-19 = 4

Of males 2 wear Black so 4-2 = 2 wear Blue.

We are given total Black = 12, which means 10 females must wear Black to make x + 2 = 12.

Recall total females = 19, so females wearing Blue = 19-10 = 9. Answer C.
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Re: In a law office with 23 legal secretaries (all of whom are required to  [#permalink]

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New post 30 Jun 2017, 06:33
Bunuel wrote:
In a law office with 23 legal secretaries (all of whom are required to wear blue or black suits to work), 19 of the secretaries are female. If 2 male secretaries wear blue suits and 12 of the secretaries wear black suits, then how many female legal secretaries wear blue suits?

A. 2
B. 4
C. 9
D. 10
E. 11


Secretaries with blue suits = 23 - 12 = 11
Female secretaries with blue suits = 11 - 2 = 9
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Re: In a law office with 23 legal secretaries (all of whom are required to  [#permalink]

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New post 04 Jul 2017, 08:11
Bunuel wrote:
In a law office with 23 legal secretaries (all of whom are required to wear blue or black suits to work), 19 of the secretaries are female. If 2 male secretaries wear blue suits and 12 of the secretaries wear black suits, then how many female legal secretaries wear blue suits?

A. 2
B. 4
C. 9
D. 10
E. 11


We are given that an office has 23 secretaries and 19 of them are female; thus, 4 are male.

Since 2 male secretaries wear blue suits, 2 must wear black suits.

Since 12 secretaries in total wear black suits, 12 - 2 = 10 female secretaries must wear black suits.

Finally, since there are 19 female secretaries, 19 - 10 = 9 must wear blue suits.

Alternate solution:

We are given that an office has 23 secretaries, 12 of whom wear black suits; thus, 11 wear blue suits.

Since 2 male secretaries wear blue suits, 11 - 2 = 9 female secretaries must wear blue suits.

Answer: C
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Re: In a law office with 23 legal secretaries (all of whom are required to   [#permalink] 04 Jul 2017, 08:11
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