In the fraction x/y, where x and y are positive integers, : DS Archive
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# In the fraction x/y, where x and y are positive integers,

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Director
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In the fraction x/y, where x and y are positive integers, [#permalink]

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30 Dec 2007, 09:24
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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

SOLVE!
CEO
Joined: 17 Nov 2007
Posts: 3589
Concentration: Entrepreneurship, Other
Schools: Chicago (Booth) - Class of 2011
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30 Dec 2007, 11:48
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Expert's post
E

y=1/2 and y=1/6 both satisfy conditions 1 and 2.
Director
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30 Dec 2007, 15:09
Can you please explain statement 1. I'm a idiot today.
CEO
Joined: 17 Nov 2007
Posts: 3589
Concentration: Entrepreneurship, Other
Schools: Chicago (Booth) - Class of 2011
GMAT 1: 750 Q50 V40
Followers: 544

Kudos [?]: 3550 [0], given: 360

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01 Jan 2008, 14:05
jimmyjamesdonkey wrote:
Can you please explain statement 1. I'm a idiot today.

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

Other words LCM(y,3)=6=3*2. So, y=2 or y=2*3=6.
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Director
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Re: DS: Properties of Numbers [#permalink]

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03 Jan 2008, 03:17
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[quote="jimmyjamesdonkey"]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

SOLVE![/quote]

E.

Stat 1:
y can be 2 or y can be 6. Insuff.

Stat 2:
Tells us nothing about y. Insuff

Together:
x/y can be 1/2 or x/y can be 1/6. Insuff.
Re: DS: Properties of Numbers   [#permalink] 03 Jan 2008, 03:17
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