If \(n\) is a positive integer and \(r\) is the remainder when \(4 + 7n\) is divided by \(3,\) what is the value of

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If \(n\) is a positive integer and \(r\) is the remainder when \(4 + 7n\) is divided by \(3,\) what is the value of \(r?\)

(1) \(n + 1\) is divisible by \(3.\)
(2) \(n > 20.\)

Answer: A

Source: GMAT Prep