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Gmat_mission
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If \(X\) is a positive integer, what is the units digit of \(X^a?\)
1) \(X\) when divided by \(10\) gives a remainder of \(2.\)
2) \(8^a\) ends with \(6.\)
Answer: C
Source: e-GMAT
1) \(X\) when divided by \(10\) gives a remainder of \(2.\)
2) \(8^a\) ends with \(6.\)
Answer: C
Source: e-GMAT
