Art of Problem Solving
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2013 AMC 8 Problems/Problem 9: Revision history

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12 January 2025

5 May 2022

26 November 2020

9 November 2020

23 October 2020

10 September 2018

19 March 2018

15 October 2017

11 November 2015

27 November 2013

20 November 2013