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there are 5 jobs of type CEO,GM,AGM, senior faculty and

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Intern
Joined: 29 Mar 2013
Posts: 16
Followers: 1

Kudos [?]: 29 [0], given: 12

there are 5 jobs of type CEO,GM,AGM, senior faculty and [#permalink]

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22 Apr 2013, 10:00
1
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Difficulty:

45% (medium)

Question Stats:

36% (01:20) correct 64% (00:59) wrong based on 14 sessions

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There are five jobs of type ceo,gm,agm,senior faculty and junior faculty & five deserving candidates are coming for interviews. find the no of ways in which all appointments given to wrong candidates. How many ways in which all appointment given to wrong candidates.

A 44
B 45
C 24
D 49
E 50
[Reveal] Spoiler: OA
Math Expert
Joined: 02 Sep 2009
Posts: 38796
Followers: 7712

Kudos [?]: 105739 [0], given: 11578

Re: there are 5 jobs of type CEO,GM,AGM, senior faculty and [#permalink]

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22 Apr 2013, 10:05
iwantto wrote:
There are five jobs of type ceo,gm,agm,senior faculty and junior faculty & five deserving candidates are coming for interviews. find the no of ways in which all appointments given to wrong candidates. How many ways in which all appointment given to wrong candidates.

A 44
B 45
C 24
D 49
E 50

Poor quality question.

Problem testing the same concept: tanya-prepared-4-different-letters-to-4-different-addresses-88626.html
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Manager
Joined: 31 May 2011
Posts: 203
Followers: 1

Kudos [?]: 2 [0], given: 4

Re: there are 5 jobs of type CEO,GM,AGM, senior faculty and [#permalink]

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24 Apr 2013, 00:29
Coul you explain me the way to get the final result.

My approach
Total ways to get 1 correct: 5C1*3*2*1 = 30
Total ways to get 2 correct: 5C2*2*1 = 20
Total ways to get 3 correct: 5C3*1*1 = 10
Total ways to get 4 correct: 0
Total ways to get 5 coeect: 1

Total ways to choose 5!= 120

then the total way to have 0 correct is 120 - 61 = 59
Coul anyone explain for me is there any problem in my approach ?
Re: there are 5 jobs of type CEO,GM,AGM, senior faculty and   [#permalink] 24 Apr 2013, 00:29
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