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Vincen
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If \(n\) is an integer, is \(\dfrac{n}7\) an integer?
(1) \(\dfrac{3n}7\) is an integer.
(2) \(\dfrac{5n}7\) is an integer.
Answer: D
Source: GMAT Prep
(1) \(\dfrac{3n}7\) is an integer.
(2) \(\dfrac{5n}7\) is an integer.
Answer: D
Source: GMAT Prep
