Art of Problem Solving
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2013 AMC 12B Problems/Problem 4: Revision history

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3 August 2022

19 January 2021

17 January 2021

15 January 2019

17 December 2018

31 December 2017

25 December 2017

3 February 2015

27 January 2015

22 November 2013

3 July 2013

7 April 2013

22 February 2013