GMAT Prep

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GMAT Prep

by mike22629 » Sun May 10, 2009 9:21 am
In the fraction x/y, where x and y are positive integers, what is the value of y?

1.) The least common denominator of x/y and 1/3 is 6
2.) x = 1


OA E

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Re: GMAT Prep

by apple100 » Sun May 10, 2009 5:18 pm
mike22629 wrote:In the fraction x/y, where x and y are positive integers, what is the value of y?

1.) The least common denominator of x/y and 1/3 is 6
2.) x = 1


OA E
Both A & B alone are insufficient. If taken together, the question states that 1/y and 1/3 have a common denominator of 6. This is still insufficient, for y can be either 2 or 6. Thus E.

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by mike22629 » Sun May 10, 2009 5:41 pm
Elaborate please

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by PAB2706 » Tue May 12, 2009 8:42 am
IMO

Stat - 1 the value of y can be 2 or 6

so insuff

Stat-2 also gives us no info bout y

together also we cannot narrow down on the exact value of y whether it is 2 or 6

hence E

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Re: GMAT Prep

by lilu » Tue May 12, 2009 10:16 am
mike22629 wrote:In the fraction x/y, where x and y are positive integers, what is the value of y?

1.) The least common denominator of x/y and 1/3 is 6
2.) x = 1


OA E
Statement 1---> x/y and 1/3 have a common denominator=6. y (the denom. of x/y) can equal 2 or 6, not suff

Statement 2--->x=1, but it doesn't give us any info about y, so also insuff

Together, we still don't know whether y is 2 or 6--->E
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