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# Are integers P and Q both multiples of 3? (1) PQ is a

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SVP
Joined: 03 Feb 2003
Posts: 1603

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Are integers P and Q both multiples of 3? (1) PQ is a [#permalink]

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28 May 2003, 22:48
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Are integers P and Q both multiples of 3?

(1) PQ is a multiple of 9
(2) Q is a multiple of 3

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Manager
Joined: 25 May 2003
Posts: 54

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28 May 2003, 23:51
do you mean PQ as in the 2-digit number or the value P*Q?

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SVP
Joined: 03 Feb 2003
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29 May 2003, 03:15
E seems OK

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Founder
Joined: 04 Dec 2002
Posts: 15593

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Location: United States (WA)
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29 May 2003, 16:56
stolyar wrote:
Are integers P and Q both multiples of 3?

(1) PQ is a multiple of 9
(2) Q is a multiple of 3

E Yes, because they can be 1 and 9 or 6 and 3.

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Intern
Joined: 25 May 2003
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Location: Thailand

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01 Jun 2003, 21:52
In my view, the answer is E

How ?

statement I : P*Q is a multiple of 9. Pick 3*6 and 5*9
Statement II : Q is a multiple of 3. You don't know the value of P

Combined it all together with my example in statement I, the answer is surely E

Right and Clear ?

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explaination   [#permalink] 01 Jun 2003, 21:52
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