Good CR question from GMAT Prep

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Good CR question from GMAT Prep

by girishj » Sat Apr 30, 2016 8:25 pm
Why is A wrong?
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by GMATGuruNY » Tue May 03, 2016 4:25 am
girishj wrote:Why is A wrong?
Premise:
The number of employees with the qualifications to be promoted to department head is equal to only half the expected vacancies.
Conclusion:
Some department head positions will remain vacant.

The correct answer choice must explain why some department head positions will remain vacant.
A: Vebrol will not promote more than one employee from any department.
Whether Vebrol promotes one employee from each department or ten employees from each department is irrelevant, since -- as stated in the premise -- not enough employees have the QUALIFICATIONS to be promoted.
Eliminate A.
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by girishj » Wed May 04, 2016 12:43 am
Hi Mitch - I didn't understand your explanation. If more than one employee from any department is promoted to serve as heads of departments then what's the issue?

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by GMATGuruNY » Wed May 04, 2016 4:13 am
girishj wrote:Hi Mitch - I didn't understand your explanation. If more than one employee from any department is promoted to serve as heads of departments then what's the issue?
Option A implies that promotable employees cannot fill all of the expected vacancies because Vebrol will not promote more than one employee from any department.
This information seems to refute the PREMISE that promotable employees cannot fill all of the expected vacancies because not enough of these employees are QUALIFIED.
A premise is a FACT.
It cannot be refuted.
Eliminate any answer choice that seems to refute a premise.
Eliminate A.
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I unlock the best way for YOU to solve problems.

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by girishj » Wed May 04, 2016 6:44 am
Hi Mitch - may I request your replies to some of my other questions as well. Thanks