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A dog breeder currently has 9 breeding dogs. 6 of the dogs have exactl

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Joined: 07 Sep 2016
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Location: India
Concentration: Technology, Finance
GMAT 1: 700 Q49 V36
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A dog breeder currently has 9 breeding dogs. 6 of the dogs have exactl  [#permalink]

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New post 08 Apr 2018, 05:32
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A dog breeder currently has 9 breeding dogs. 6 of the dogs have exactly 1 littermate, and 3 of the dogs have exactly 2 littermates. If 2 dogs are selected at random, what is the probability that both selected dogs are NOT littermates?

A. 1/6
B. 2/9
C. 5/6
D. 7/9
E. 8/9
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Joined: 02 Sep 2009
Posts: 55681
Re: A dog breeder currently has 9 breeding dogs. 6 of the dogs have exactl  [#permalink]

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New post 08 Apr 2018, 05:44
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Re: A dog breeder currently has 9 breeding dogs. 6 of the dogs have exactl   [#permalink] 08 Apr 2018, 05:44
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A dog breeder currently has 9 breeding dogs. 6 of the dogs have exactl

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