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# If X is an integer, is X even? 1) aX is even, where a is an

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Manager
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If X is an integer, is X even? 1) aX is even, where a is an [#permalink]

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19 Jan 2007, 06:43
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

If X is an integer, is X even?

1) aX is even, where a is an integer.
2) sq(X)-1 is an odd integer.

this one is very easy. But stuck in a basic concept,

are -2,-4 even integers?
Manager
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19 Jan 2007, 07:33
From what I understand, yes they are.
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19 Jan 2007, 08:02
If X is an integer, is X even?

1) aX is even, where a is an integer.
2) sq(X)-1 is an odd integer.

this one is very easy. But stuck in a basic concept

from one a or x is even ............insuff

from two

sq x is even intiger thus x is a perfect square even intiger,,,,,,,,,,,suff

19 Jan 2007, 08:02
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