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## Find the remainder

This topic has 1 member reply
snapplesf Junior | Next Rank: 30 Posts
Joined
09 Mar 2007
Posted:
14 messages

#### Find the remainder

Fri Mar 23, 2007 11:01 am
source - GMATPrep
--------------------------------------------

If n is a positive integer and r is the remainder when (n-1)(n+1) is divided by 24, what is the value of r ?

1) n is not divisible by 2

2) n is not divisible by 4

Ans = C.

I have no idea how to do this - any help ?

jayhawk2001 Community Manager
Joined
28 Jan 2007
Posted:
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Fri Mar 23, 2007 6:25 pm

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