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# Selects 2 from 12 red balls and 12 blue balls, all is the

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Manager
Joined: 27 Jul 2003
Posts: 124
Location: Singapore
Followers: 1

Kudos [?]: 10 [0], given: 0

Selects 2 from 12 red balls and 12 blue balls, all is the [#permalink]  05 Oct 2003, 22:37
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0% (00:00) correct 0% (00:00) wrong based on 0 sessions
Selects 2 from 12 red balls and 12 blue balls, all is the red
probability?
Intern
Joined: 13 Sep 2003
Posts: 43
Location: US
Followers: 0

Kudos [?]: 8 [0], given: 0

hey stol...disagree with u..
why cant it be
12C2/24C2 = 1/6.
Manager
Joined: 11 Mar 2003
Posts: 54
Location: Chicago
Followers: 1

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

I would agree with sudzpwc. Since we are selecting both the balls at the same time and not one by one, sudzpwc's solution will be applicable here.
Manager
Joined: 11 Mar 2003
Posts: 54
Location: Chicago
Followers: 1

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

Soumala wrote:
Both ways the answer will be 11/46.

Oooops... I did not notice that.

Nevertheless, I think the appraoch for such problem should be 12C2/24C2 .
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