What is the average (arithmetic mean) of \(3m\) and \(12n?\)

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by VJesus12 » Sat Jun 26, 2021 5:31 am

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What is the average (arithmetic mean) of \(3m\) and \(12n?\)

(1) \(m + 4n = 20\)
(2) \(m + n = 11\)

Answer: A

Source: Princeton Review

Source: Beat The GMAT — Data Sufficiency | Sat Jun 26, 2021 5:31 am

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