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smar83 Rising GMAT Star
Joined: 31 Dec 2007 Posts: 54
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Location: USA Target GMAT Score: 700+
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Posted: Sun Jan 06, 2008 8:33 pm Post subject: OG 11 Log for hard/medium questions ? |
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Folks,
I saw eric has log of hard/medium question for OG10. Anything for OG11 ? Any link/source for errors on OG11 ?
Question no. 14 on Pg.154, the answer to this question is a bit controversial. I personally chose 1 has ( 1-1) would give you 0 in the denominator making the equation invalid.
The answer says 0, I dont know why/how.
thanks. _________________ GMAT Freak !!
- Sid. |
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beatthegmat Founder

Joined: 13 Feb 2006 Posts: 3774
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Location: California GMAT Score: 720
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Posted: Sun Jan 06, 2008 8:44 pm Post subject: |
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Unfortunately, no similar log has been created for OG11 to the best of my knowledge. I've been looking for such a document for almost two years now. _________________ Eric
Discounts on Kaplan, Manhattan GMAT, Veritas Prep, and Stacy Blackman Consulting - see the links at the top of the page for more info.
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sankruth Really wants to Beat The GMAT!
Joined: 21 Oct 2007 Posts: 195
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Posted: Sun Jan 06, 2008 10:19 pm Post subject: |
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smar83,
I feel that the mistake you are doing is substituting the answer choices for x, when the question is asking or the value of 1/(x-1).
Only a fraction that has numerator = 0 can have value = 0. So 1/(x-1) will be undefined. So, 0 is the correct choice. |
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