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What is the units digit of positive integer \(y?\)
(1) The units digit of \(y^2\) is 1.
(2) The units digit of \(y\) does not equal 1
[spoiler]OA=C[/spoiler]
Source: Manhattan GMAT
(1) The units digit of \(y^2\) is 1.
(2) The units digit of \(y\) does not equal 1
[spoiler]OA=C[/spoiler]
Source: Manhattan GMAT
