Say you have 5 coins. 1 coin has heads on both sides and the : GMAT Problem Solving (PS) - Page 2
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# Say you have 5 coins. 1 coin has heads on both sides and the

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CEO
Joined: 17 Nov 2007
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Concentration: Entrepreneurship, Other
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11 Mar 2010, 06:29
I agree with Bunuel that conditional probability concept is not tested(or very rarely tested) in GMAT or I just can't recall any problem in OG and GMATPrep using the concept. After I reread the question, yeah, 8/9 makes more sense.
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11 Mar 2010, 07:49
it is clear that 1/5 is the probability of picking the coin with head in both side.

I agree with 100% with "TheSituation" answer
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29 Aug 2011, 04:07
can u please explain fully once again .......... i m really getting very confused in this ques.

@ Brunel- if u can reply in a simpler manner for this ques ..pls
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Re: Say you have 5 coins. 1 coin has heads on both sides and the [#permalink]

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30 Jul 2014, 17:32
Hello from the GMAT Club BumpBot!

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Re: Say you have 5 coins. 1 coin has heads on both sides and the   [#permalink] 30 Jul 2014, 17:32

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