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T O P I C    R E V I E W
Joe Komagawa Posted - 12/01/2013 : 00:34:37
GMAT-official guide, #158
A set of numbers has the property that for any number T in the set T+2 is in the set. If -1 is in the set, which of the following must also be in the text? I -3, II 1, III 5,
A) I only, B) II only, C) I and II only, D) II and III only, E) I,II, and III. ANSWER D.

I see that II is in the set. I don't see that 5 is in the set, because I don't understand how large the set is. Wh doesn't the set stop at 1? Who is to say that it continues?
1   L A T E S T    R E P L I E S    (Newest First)
the_hill1962 Posted - 12/03/2013 : 14:29:13
T can be any number.
Therefore the set is as large as there are "numbers". "Numbers" is an infinitely large set.

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