m25 q.3 : Retired Discussions [Locked] - Page 2
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m25 q.3

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Re: m25 q.3 [#permalink]

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New post 08 Jan 2014, 20:07
Total selections : 10c3 =120. cases when none of the professor is included = 6c3=20. hence favourable cases = 120-20=100
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Re: m25 q.3 [#permalink]

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New post 20 Apr 2014, 02:27
how many ways to form a committee w/o any professor

-> all members are students: choose 3 out of 6 -> 20 ways
Form a committee w/o restriction -> choose 3 out of 10 -> 120 ways
=> at least 1 prof = 100 ways
Re: m25 q.3   [#permalink] 20 Apr 2014, 02:27

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18 Experts publish their posts in the topic m25#02 duuuma 29 17 Oct 2008, 13:28
27 Experts publish their posts in the topic m25 #22 duuuma 21 20 Oct 2008, 14:27
17 Experts publish their posts in the topic M25 #29 sharmar 23 09 Oct 2008, 06:34
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m25 q.3

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