1 July 2025

• curprev 16:0116:01, 1 July 2025 Sevenoptimus talk contribs m 807 bytes −17 Improved formatting of answer choices
• curprev 15:1015:10, 1 July 2025 Sevenoptimus talk contribs m 824 bytes −25 Improved formatting
• curprev 13:1313:13, 1 July 2025 Sevenoptimus talk contribs m 849 bytes +19 Fixed typo in problem statement
• curprev 13:1113:11, 1 July 2025 Sevenoptimus talk contribs m 830 bytes +1 Fixed typo in answer choices

25 December 2022

• curprev 18:0618:06, 25 December 2022 Charles3829 talk contribs m 829 bytes +65 →Video Solution

7 December 2021

• curprev 10:3410:34, 7 December 2021 Dairyqueenxd talk contribs 764 bytes −4 →Solution
• curprev 10:3410:34, 7 December 2021 Dairyqueenxd talk contribs 768 bytes +10 →Solution
• curprev 10:3310:33, 7 December 2021 Dairyqueenxd talk contribs 758 bytes −6 →Problem

30 October 2020

• curprev 20:0020:00, 30 October 2020 Thestudyofeverything talk contribs 764 bytes +19 →Solution
• curprev 19:3619:36, 30 October 2020 Thestudyofeverything talk contribs 745 bytes +56 →Solution

2 February 2020

• curprev 19:3519:35, 2 February 2020 Grizzyproblemsolver79c talk contribs 689 bytes 0 →Solution
• curprev 19:3519:35, 2 February 2020 Grizzyproblemsolver79c talk contribs 689 bytes −6 →See also121213
• curprev 17:2717:27, 2 February 2020 Shaka talk contribs 695 bytes −1 →Solution
• curprev 17:2717:27, 2 February 2020 Shaka talk contribs 696 bytes +6 →See also

7 January 2015

• curprev 13:4813:48, 7 January 2015 Zer0waltz talk contribs m 690 bytes 0 No edit summary

3 July 2013

• curprev 20:1220:12, 3 July 2013 Nathan wailes talk contribs 690 bytes +15 →See also

17 May 2010

• curprev 18:0718:07, 17 May 2010 YottaByte talk contribs m 675 bytes 0 Said 12A, had me worried I had been doing AMC 12 problems.

21 June 2009

• curprev 21:0421:04, 21 June 2009 5849206328x talk contribs m 675 bytes +147 No edit summary

23 September 2007

• curprev 09:0809:08, 23 September 2007 Azjps talk contribs 528 bytes +528 solution