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Please help explain this answer

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Source: — Data Sufficiency |
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by mayur00 » Tue Sep 09, 2008 12:47 pm
1. The rest of the sequence may or may not have infinite EVEN integers

Hence insufficient.

2. The sequence could also have infinite EVEN integers as well. Infinite + Infinite would still be Infinite.

Hence insufficient.


Combining both doesn't give us any added information hence the answer E
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by pseudononymous » Wed Sep 10, 2008 6:22 am
I agree that the answer is E.

Alpha Sequence: Infinite odds, Finite evens

(1) Doesn't mention anything about odds
(2) Doesn't mention anything about evens

(1 and 2) You know that there are infinite odds, but you don't know whether there are infinite evens or not (all you know is that the first 10 integers are even, but that doesn't mean that there aren't any more).
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