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2005 AMC 10B Problems/Problem 20

Revision as of 21:23, 17 August 2010 by Fzhou1995 (talk | contribs)

Problem

What is the average (mean) of all 5-digit numbers that can be formed by using each of the digits 1, 3, 5, 7, and 8 exactly once?

Solution

See Also

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