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if pq does not equal 0, is x an integer? 1) x=3p-2q 2) p=q

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Manager
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if pq does not equal 0, is x an integer? 1) x=3p-2q 2) p=q [#permalink] New post 29 Aug 2004, 14:03
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C
D
E

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if pq does not equal 0, is x an integer?

1) x=3p-2q

2) p=q

no clue
Senior Manager
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 [#permalink] New post 29 Aug 2004, 19:14
I'd go E almost instantly.

If p = q = .1, x is not integer
If p = q = 1, x is integer
GMAT Club Legend
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 [#permalink] New post 29 Aug 2004, 21:26
1) x=3p-2q

2) p=q

(1) not sufficient. P and Q could be fractions, and the operation of x could result in some fraction as well.
(2) not sufficient. Same reason as above.

(1) and (2) put together doesn't tell us anything more than we already know.

So (E).
Manager
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 [#permalink] New post 30 Aug 2004, 04:42
I would choose E too.

p and q could be fractions like p = 1/2 and q = 5/7 or they both could be integers.

Regards,

Alex
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 [#permalink] New post 30 Aug 2004, 05:37
actually this is from one of the paper tests and it gives the answer as A which makes no sense to me.

???
CIO
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 [#permalink] New post 30 Aug 2004, 08:17
nope, E. Definately. The best we can get to is combining them together and seeing that x = p = q. But since we don't know what they are, just that their not zero, it's got to be E.
  [#permalink] 30 Aug 2004, 08:17
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