Art of Problem Solving
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2015 AMC 12A Problems/Problem 23: Revision history

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3 September 2023

18 January 2021

20 June 2020

15 May 2020

19 January 2020

27 November 2019

9 September 2019

5 February 2019

25 December 2018

2 February 2018

28 January 2018

30 August 2015

31 March 2015

5 February 2015

4 February 2015