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# Suppose that What is the maximum possible value of ​ ?

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Suppose that
\(|a - b| + |b - c| + |c - d| + \dots + |m-n| + |n-o| + \cdots+ |x - y| + |y - z| + |z - a| = 20.\)
What is the maximum possible value of \( |a - n|\) ?

Aug 2, 2019