Art of Problem Solving
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2014 AMC 10A Problems/Problem 21: Revision history

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16 April 2025

2 November 2024

7 October 2024

30 July 2022

21 October 2021

24 May 2021

30 August 2020

15 May 2020

30 December 2019

17 November 2019

11 June 2018

6 April 2018

20 May 2015

23 November 2014

7 February 2014

6 February 2014