Art of Problem Solving

2009 AMC 10B Problems/Problem 11: Revision history

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  • curprev 16:3016:30, 3 March 2009 Misof talk contribs 781 bytes +781 New page: == Problem == How many <math>7</math>-digit palindromes (numbers that read the same backward as forward) can be formed using the digits <math>2</math>, <math>2</math>, <math>3</math>, <ma...