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If x, y, p, and q are positive, is x>=y ?

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If x, y, p, and q are positive, is x>=y ? [#permalink] New post 21 Dec 2009, 11:58
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A
B
C
D
E

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If x, y, p, and q are positive, is x>=y ?

(1) \frac{px}{qy}=\frac{p}{q}

(2) xy=p
[Reveal] Spoiler: OA

Last edited by Bunuel on 07 Apr 2012, 10:49, edited 1 time in total.
Edited the question and added the OA
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Re: paper test 37 section 6 q 8 [#permalink] New post 21 Dec 2009, 14:55
[strike]OA? D
Either is sufficient to answer that X is greater or equal to Y; while all being positive.[/strike]

Agreed; A
B is insufficient.

BTW about the approach towards such question; one such is to be on GMAT Club...!
MGMAT inequalities is supposed to be...

Last edited by DestinyChild on 21 Dec 2009, 15:04, edited 2 times in total.
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Re: paper test 37 section 6 q 8 [#permalink] New post 21 Dec 2009, 14:57
Answer A

pqx = pqy
implies
x = y

xy=p Insufficient

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Re: how to aproach such questions [#permalink] New post 07 Apr 2012, 10:35
Guys I am getting Answer as E

1) x=y but we dont know whether x>y or not
2) ns

1+2)still we dont know whether x>y

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Re: how to aproach such questions [#permalink] New post 07 Apr 2012, 10:47
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GMATD11 wrote:
Guys I am getting Answer as E

1) x=y but we dont know whether x>y or not
2) ns

1+2)still we dont know whether x>y


If x, y, p, and q are positive, is x>=y?

Question: is x more than or equal to y (is x\geq{y})?

(1) \frac{px}{qy}=\frac{p}{q} --> reduce by \frac{p}{q} --> \frac{x}{y}=1 --> x=y, so we can answer yes to the question: x is equal to y. Sufficient.

(2) xy=p --> Clearly not sufficient (if x, y and p equal to 1, 2, and 2 respectively then the answer is NO but if they equal to 2, 1 and 2 then the answer is YES).

Answer: A.

Hope it's clear.

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Re: how to aproach such questions   [#permalink] 07 Apr 2012, 10:47
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