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# We have x red balls and x blue balls in a bag. The probability of gett

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Intern
Joined: 14 Jan 2018
Posts: 3
We have x red balls and x blue balls in a bag. The probability of gett  [#permalink]

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14 Jan 2018, 09:35
00:00

Difficulty:

(N/A)

Question Stats:

67% (00:27) correct 33% (00:59) wrong based on 3 sessions

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We have x red balls and x blue balls in a bag. The probability of getting 2 red balls in succession is 2/9. What's x?

a) 5
b) 10
c) 13
d) 8
e) 12

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Math Expert
Joined: 02 Sep 2009
Posts: 53709
Re: We have x red balls and x blue balls in a bag. The probability of gett  [#permalink]

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14 Jan 2018, 09:39
KlausHarvey wrote:
We have x red balls and x blue balls in a bag. The probability of getting 2 red balls in succession is 2/9. What's x?

a) 5
b) 10
c) 13
d) 8
e) 12

This is not a Princeton Review question. Please note that ONLY Questions from Reliable GMAT Sources are Allowed on the Forum! Please do NOT post questions from random math books and web sites. Thank you.

--== Message from the GMAT Club Team ==--

THERE IS LIKELY A BETTER DISCUSSION OF THIS EXACT QUESTION.
This discussion does not meet community quality standards. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

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Re: We have x red balls and x blue balls in a bag. The probability of gett   [#permalink] 14 Jan 2018, 09:39
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