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Gmat_mission
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If \(m\) and \(n\) are positive integers such that \(m > n,\) what is the remainder when \(m^2 – n^2\) is divided by \(21?\)
1. The remainder when \(m + n\) is divided by \(21\) is \(1.\)
2. The remainder when \(m – n\) is divided by \(21\) is \(1.\)
[spoiler]OA=C[/spoiler]
Source: Veritas Prep
1. The remainder when \(m + n\) is divided by \(21\) is \(1.\)
2. The remainder when \(m – n\) is divided by \(21\) is \(1.\)
[spoiler]OA=C[/spoiler]
Source: Veritas Prep
