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If a 3-member subcommittee is to be formed from a certain 6-

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Senior Manager
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If a 3-member subcommittee is to be formed from a certain 6- [#permalink]

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New post 01 Apr 2014, 03:37
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If a 3-member subcommittee is to be formed from a certain 6-member committee, how many different such subcommittee are possible?

A. 6
B. 18
C. 20
D. 108
E. 216
[Reveal] Spoiler: OA

Last edited by Bunuel on 01 Apr 2014, 04:57, edited 1 time in total.
Edited the question.
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Re: if a 3-member subcommittee is to be formed from a certain 6- [#permalink]

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New post 01 Apr 2014, 04:56
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Re: If a 3-member subcommittee is to be formed from a certain 6- [#permalink]

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New post 01 Apr 2014, 12:16
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goodyear2013 wrote:
If a 3-member subcommittee is to be formed from a certain 6-member committee, how many different such subcommittee are possible?

A. 6
B. 18
C. 20
D. 108
E. 216

Another way:
1st member can be selected in 6 ways
2nd can be selected in 5 ways
3rd can be selected in 4 ways
So total ways : 120
But to avoid the similar scenarios 120/3!=20
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Re: If a 3-member subcommittee is to be formed from a certain 6- [#permalink]

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New post 26 Jan 2016, 18:27
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Re: If a 3-member subcommittee is to be formed from a certain 6-   [#permalink] 26 Jan 2016, 18:27
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