Art of Problem Solving
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2013 AMC 12B Problems/Problem 19: Revision history

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28 January 2021

2 January 2021

29 December 2020

28 September 2020

23 January 2020

4 February 2019

25 January 2018

13 January 2018

8 January 2018

6 February 2017

3 February 2017

18 December 2016

19 January 2016

10 March 2015

23 December 2014

13 August 2014

13 February 2014

2 February 2014

6 January 2014

22 November 2013

22 September 2013

26 August 2013

3 July 2013

7 April 2013

23 February 2013

22 February 2013

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