26 September 2025

• curprev 19:3919:39, 26 September 2025 Keto ruii talk contribs 1,591 bytes +1 →Problem
• curprev 19:3719:37, 26 September 2025 Keto ruii talk contribs 1,590 bytes +1 →Solution
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• curprev 19:3619:36, 26 September 2025 Keto ruii talk contribs 1,590 bytes +1 →Problem
• curprev 19:3619:36, 26 September 2025 Keto ruii talk contribs 1,589 bytes −1 →Solution
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• curprev 19:3219:32, 26 September 2025 Keto ruii talk contribs 1,590 bytes +1 →Problem

18 November 2024

• curprev 15:5015:50, 18 November 2024 O-o-o talk contribs m 1,589 bytes −1 →Solution: change the 1200 to 600 or might be there is mistake in the question ., please correct it

15 October 2024

• curprev 15:2715:27, 15 October 2024 Miayuan talk contribs m 1,590 bytes −1 →Problem

6 October 2024

• curprev 18:1618:16, 6 October 2024 Lovelearning999 talk contribs 1,591 bytes +375 →Solution 2 (Similar to above solution)
• curprev 18:1318:13, 6 October 2024 Lovelearning999 talk contribs 1,216 bytes +45 →Solution

10 June 2024

• curprev 09:0409:04, 10 June 2024 Forest3g talk contribs 1,171 bytes −66 →Video Solution

22 January 2023

• curprev 08:0608:06, 22 January 2023 Savannahsolver talk contribs 1,237 bytes +66 No edit summary

17 May 2021

• curprev 17:0717:07, 17 May 2021 Primenumbersfun talk contribs m 1,171 bytes −1 →Solution

27 December 2019

• curprev 14:3014:30, 27 December 2019 Heeeeeeeheeeee talk contribs 1,172 bytes −7 →Solution
• curprev 14:2914:29, 27 December 2019 Heeeeeeeheeeee talk contribs 1,179 bytes +7 →Solution
• curprev 14:2714:27, 27 December 2019 Heeeeeeeheeeee talk contribs 1,172 bytes 0 →Solution
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3 July 2013

• curprev 16:0716:07, 3 July 2013 MSTang talk contribs m 1,173 bytes +17 →See Also

4 May 2010

• curprev 17:5417:54, 4 May 2010 -$45! talk contribs m 1,156 bytes 0 →Solution

18 May 2009

• curprev 16:4216:42, 18 May 2009 5849206328x talk contribs m 1,156 bytes +61 No edit summary

12 January 2009

• curprev 21:3321:33, 12 January 2009 5849206328x talk contribs m 1,095 bytes +9 →See Also
• curprev 21:3321:33, 12 January 2009 5849206328x talk contribs 1,086 bytes +1,086 New page: ==Problem== King Middle School has <math>1200</math> students. Each student takes <math>5</math> classes a day. Each teacher teaches <math>4</math> classes. Each class has <math>30</ma...