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If n and m are positive integers, what is the remainder when

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Manager
Joined: 14 Nov 2005
Posts: 65

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If n and m are positive integers, what is the remainder when [#permalink]

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30 Jan 2006, 23:39
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If n and m are positive integers, what is the remainder when 3^(4n+2) is divided by 10?

(1) n=2
(2) m=1

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GMAT Club Legend
Joined: 07 Jul 2004
Posts: 5034

Kudos [?]: 437 [0], given: 0

Location: Singapore

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31 Jan 2006, 05:20
Assuming there's no typographical error, then (1) is sufficient, while (2) is totally irrelevant.

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Manager
Joined: 14 Nov 2005
Posts: 65

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01 Feb 2006, 12:06
NO typo...This question is from GMATprep.

I think the right answer is A. But the answer in GMATprep is B. So confused !!!

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Manager
Joined: 23 Jan 2006
Posts: 192

Kudos [?]: 36 [0], given: 0

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20 Mar 2006, 09:08
Just got this in gmatprep too. This HAS to be a typo or error in the software.

frustrating...

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SVP
Joined: 14 Dec 2004
Posts: 1681

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20 Mar 2006, 10:07
As far as question goes, it should be "A"

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20 Mar 2006, 10:07
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If n and m are positive integers, what is the remainder when

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