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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
(1) \(m + 4n = 20\)
(2) \(m + n = 11\)
Answer: A
Source: Princeton Review
