If y is a positive integer, what is the units digit of y?

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by BTGmoderatorDC » Tue Dec 06, 2022 10:46 pm

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If y is a positive integer, what is the units digit of y?

(1) The units digit of y^2 = 1
(2) The units digit of y does not equal 1

OA C

Source: Manhattan Prep

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Source: Beat The GMAT — Data Sufficiency | Tue Dec 06, 2022 10:46 pm

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