A certain company assigns employees to offices in such a way : PS Archive
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# A certain company assigns employees to offices in such a way

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Intern
Joined: 06 Aug 2007
Posts: 46
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A certain company assigns employees to offices in such a way [#permalink]

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25 Aug 2007, 21:37
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A certain company assigns employees to offices in such a way that some of the offices
can be empty and more than one employee can be assigned to an office. In how many
ways can the company assign 3 employees to 2 different offices?
A. 5
B. 6
C. 7
D. 8
E. 9

VP
Joined: 10 Jun 2007
Posts: 1459
Followers: 7

Kudos [?]: 256 [0], given: 0

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25 Aug 2007, 22:30
racha24 wrote:
A certain company assigns employees to offices in such a way that some of the offices
can be empty and more than one employee can be assigned to an office. In how many
ways can the company assign 3 employees to 2 different offices?
A. 5
B. 6
C. 7
D. 8
E. 9

I got D.
Employee A, B, C
1: All three in office 1
2: All three in office 2
3: AB in office 1, C in office 2
4: AC in office 1, B in office 2
5: CB in office 1, A in office 2
6,7,8: reversed office of 3,4,5
Re: probability PS   [#permalink] 25 Aug 2007, 22:30
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