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dferm
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 Posted: Tue May 13, 2008 4:42 pm Post subject: GMAT Prep ?? (Divisibility) Pract2 |
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If n is a positive integer and r is the remainder when n^2-1 is divided by 8, what is the value of r?
(1) n is odd
(2) n is not divisible by 8
Can someone please break this down for me...
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prabhu3645
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| Posted: Tue May 13, 2008 7:17 pm Post subject: |
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| is the answer A |
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dferm
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| Posted: Tue May 13, 2008 8:47 pm Post subject: |
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| YES |
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