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# The stem states that X and Y are positive integers. Have a

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Manager
Joined: 09 Nov 2006
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The stem states that X and Y are positive integers. Have a [#permalink]

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13 Jan 2007, 03:41
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The stem states that X and Y are positive integers. Have a look at OE
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Kudos [?]: 4 [0], given: 0

Senior Manager
Joined: 19 Jul 2006
Posts: 358

Kudos [?]: 9 [0], given: 0

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13 Jan 2007, 06:45
Ans should be A

4^x * (1/3) ^y

= (4^x) /(3^y)

(a) y= 2x

so, (4^x) /(3^y) = (4^x) /(3^2x)

= (4/9)^x <1 ( as x is a positive integer)

sufficient

(b) insufficient

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Manager
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13 Jan 2007, 07:16
Of course it should be A. OE contradicts the stem

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Senior Manager
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13 Jan 2007, 07:40
Yes. ItÂ´s an A. (2) is clearly insuff and (1) is suff for the relation btw x and y given.

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Senior Manager
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13 Jan 2007, 10:06
OA should be A.

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13 Jan 2007, 10:06
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