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If \(a\) and \(b\) are two integers such that \(a\) is even, \(b\) is odd and neither of them leaves a remainder of

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If \(a\) and \(b\) are two integers such that \(a\) is even, \(b\) is odd and neither of them leaves a remainder of

by Vincen » Tue Aug 18, 2020 7:20 am

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If \(a\) and \(b\) are two integers such that \(a\) is even, \(b\) is odd and neither of them leaves a remainder of 1 when divided by 10, what is the units digit of \(a \times b?\)

(1) The units digit of \(a^3\) is the same as the units digit of \(a.\)

(2) The units digit of \(b^4\) is the same as the units digit of \(b.\)

Answer: B

Source: Veritas Prep
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