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# Judges will select 5 finalists from the 7 contestant

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Manager
Joined: 02 Jul 2016
Posts: 108
Re: Judges will select 5 finalists from the 7 contestant  [#permalink]

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28 Jul 2016, 23:53

Well firstly out of 7 people only 5 will be selected and for that there is only 1 way: combinations=7C5
whereas from those 5 people only one way is possible to choose 3 people in order to have a definite way of awarding 1st 2nd and 3rd prize=
5C3

Total Combinations=210(by the multiplication written in the 1st line)
Intern
Joined: 27 Apr 2016
Posts: 5
Re: Judges will select 5 finalists from the 7 contestant  [#permalink]

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19 Aug 2016, 10:51
no doubt the OA is correct and this approach (7*6*5)too ,but the first approach that stikes my mind is this>>>7C5*5P3..
I dont know where this went wrong.
What am I missing?
Non-Human User
Joined: 09 Sep 2013
Posts: 9192
Re: Judges will select 5 finalists from the 7 contestant  [#permalink]

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27 Dec 2017, 22:16
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Judges will select 5 finalists from the 7 contestant &nbs [#permalink] 27 Dec 2017, 22:16

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# Judges will select 5 finalists from the 7 contestant

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