User contributions
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- 16:18, 3 July 2022 (diff | hist) . . (0) . . User:MRENTHUSIASM
- 13:21, 5 May 2022 (diff | hist) . . (+313) . . N Wildin's Theorem (Created page with "'''Wildin's Theorem''' is a theorem discovered by Tobias Chang. It is extremely powerful and can trivialize most computational problems, often providing valuable and crucial i...")
- 13:18, 5 May 2022 (diff | hist) . . (+273) . . 2005 AMC 12A Problems/Problem 16
- 10:30, 20 April 2022 (diff | hist) . . (-8) . . 2008 iTest Problems/Problem 90 (→Solution 2 (Cauchy-Schwarz Spam))
- 10:30, 20 April 2022 (diff | hist) . . (+638) . . 2008 iTest Problems/Problem 90 (→Solution)
- 04:23, 13 March 2022 (diff | hist) . . (-207) . . List of United States elementary school mathematics competitions
- 00:00, 7 February 2022 (diff | hist) . . (0) . . Ball-and-urn
- 23:58, 6 February 2022 (diff | hist) . . (0) . . Ball-and-urn
- 12:04, 11 January 2022 (diff | hist) . . (-3) . . AMC historical results (→AMC 10B)
- 12:03, 11 January 2022 (diff | hist) . . (+26) . . AMC historical results (→2021 Fall)
- 21:00, 24 December 2021 (diff | hist) . . (+2,401) . . 1987 AIME Problems/Problem 10 (→Solution 3)
- 19:04, 27 November 2021 (diff | hist) . . (+1) . . 2021 Fall AMC 10B Problems/Problem 7 (→Solution 1)
- 19:04, 27 November 2021 (diff | hist) . . (+976) . . 2021 Fall AMC 10B Problems/Problem 7 (Changed solution to be more organized and precise, same solution idea maintained.)
- 23:01, 14 August 2021 (diff | hist) . . (+341) . . N User:Djmathman (Created page with "If djmathman has million number of fans i am one of them . if djmathman has ten fans i am one of them. if djmathman have only one fan and that is me . if djmathman has no fans...")
- 14:41, 13 August 2021 (diff | hist) . . (+66) . . 2007 AMC 12A Problems/Problem 22 (→Solution 3)
- 14:40, 13 August 2021 (diff | hist) . . (+13) . . 2007 AMC 12A Problems/Problem 22 (→Solution 3)
- 14:40, 13 August 2021 (diff | hist) . . (0) . . 2007 AMC 12A Problems/Problem 22 (→Solution 3)
- 14:37, 13 August 2021 (diff | hist) . . (+1,111) . . 2007 AMC 12A Problems/Problem 22
- 01:00, 11 August 2021 (diff | hist) . . (0) . . User:Phunsukhwangdu
- 02:17, 10 August 2021 (diff | hist) . . (+1,346) . . 1988 AIME Problems/Problem 9
- 22:33, 6 August 2021 (diff | hist) . . (0) . . 2011 AMC 12B Problems/Problem 20 (→Solution 5)
- 22:33, 6 August 2021 (diff | hist) . . (0) . . 2011 AMC 12B Problems/Problem 20 (→Solution 5)
- 22:33, 6 August 2021 (diff | hist) . . (+6) . . 2011 AMC 12B Problems/Problem 20 (→Solution 5)
- 22:32, 6 August 2021 (diff | hist) . . (-159) . . 2011 AMC 12B Problems/Problem 20 (→Solution 5)
- 22:32, 6 August 2021 (diff | hist) . . (0) . . N File:Screen Shot 2021-08-06 at 7.30.10 PM.png (current)
- 22:31, 6 August 2021 (diff | hist) . . (+1,410) . . 2011 AMC 12B Problems/Problem 20
- 16:36, 20 July 2021 (diff | hist) . . (+106) . . 1999 AIME Problems/Problem 6 (→Solution)
- 20:58, 19 July 2021 (diff | hist) . . (0) . . 1991 AIME Problems/Problem 12 (→Solution)
- 20:58, 19 July 2021 (diff | hist) . . (0) . . 1991 AIME Problems/Problem 12 (→Solution)
- 20:57, 19 July 2021 (diff | hist) . . (-1) . . 1991 AIME Problems/Problem 12 (→Solution)
- 14:31, 12 July 2021 (diff | hist) . . (-4) . . JMPSC Problems and Solutions
- 14:29, 12 July 2021 (diff | hist) . . (+3) . . JMPSC Problems and Solutions
- 14:29, 12 July 2021 (diff | hist) . . (0) . . JMPSC Problems and Solutions
- 14:28, 12 July 2021 (diff | hist) . . (+1) . . JMPSC Problems and Solutions
- 14:28, 12 July 2021 (diff | hist) . . (+92) . . JMPSC Problems and Solutions
- 01:19, 12 July 2021 (diff | hist) . . (-22) . . 2021 JMPSC Accuracy Problems/Problem 15 (→Solution) (current)
- 01:17, 12 July 2021 (diff | hist) . . (+14) . . 2021 JMPSC Accuracy Problems/Problem 11 (→Solution 4 (Very algebraic)) (current)
- 00:02, 12 July 2021 (diff | hist) . . (-8) . . 2021 JMPSC Invitationals Problems/Problem 15 (→Solution) (current)
- 19:13, 11 July 2021 (diff | hist) . . (+760) . . 2021 JMPSC Invitationals Problems/Problem 14 (→Solution)
- 18:41, 11 July 2021 (diff | hist) . . (+302) . . 2021 JMPSC Accuracy Problems (current)
- 18:40, 11 July 2021 (diff | hist) . . (-14) . . 2021 JMPSC Sprint Problems (current)
- 18:40, 11 July 2021 (diff | hist) . . (+313) . . 2021 JMPSC Sprint Problems
- 18:39, 11 July 2021 (diff | hist) . . (+299) . . 2021 JMPSC Invitationals Problems (current)
- 18:37, 11 July 2021 (diff | hist) . . (+1,154) . . 2021 JMPSC Invitationals Problems/Problem 12 (→Solution 1 (Clever Construction))
- 18:35, 11 July 2021 (diff | hist) . . (0) . . 2021 JMPSC Invitationals Problems/Problem 12 (→Solution 1 (Clever Construction))
- 18:35, 11 July 2021 (diff | hist) . . (+35) . . 2021 JMPSC Invitationals Problems/Problem 12 (→Solution)
- 18:34, 11 July 2021 (diff | hist) . . (+1,059) . . 2021 JMPSC Invitationals Problems/Problem 12 (→Solution)
- 18:33, 11 July 2021 (diff | hist) . . (0) . . N File:Invites12.png (current)
- 18:17, 11 July 2021 (diff | hist) . . (+484) . . 2021 JMPSC Invitationals Problems/Problem 10
- 18:14, 11 July 2021 (diff | hist) . . (-6) . . 2021 JMPSC Invitationals Problems/Problem 2 (→Solution)
- 18:13, 11 July 2021 (diff | hist) . . (0) . . N File:Invites2D.png (current)
- 18:10, 11 July 2021 (diff | hist) . . (+18) . . 2021 JMPSC Invitationals Problems/Problem 9 (→Solution) (current)
- 18:10, 11 July 2021 (diff | hist) . . (+22) . . 2021 JMPSC Invitationals Problems/Problem 9 (→Solution)
- 18:10, 11 July 2021 (diff | hist) . . (+253) . . 2021 JMPSC Invitationals Problems/Problem 9 (→Solution)
- 18:09, 11 July 2021 (diff | hist) . . (+242) . . 2021 JMPSC Invitationals Problems/Problem 9 (→Solution)
- 18:05, 11 July 2021 (diff | hist) . . (+1) . . 2021 JMPSC Invitationals Problems/Problem 2 (→Solution)
- 18:05, 11 July 2021 (diff | hist) . . (+5) . . 2021 JMPSC Invitationals Problems/Problem 2 (→Solution)
- 18:05, 11 July 2021 (diff | hist) . . (0) . . N File:Invites2Diagram.png (current)
- 17:53, 11 July 2021 (diff | hist) . . (+1) . . 2021 JMPSC Accuracy Problems/Problem 6 (→Solution 2) (current)
- 17:42, 11 July 2021 (diff | hist) . . (+455) . . 2021 JMPSC Invitationals Problems/Problem 6
- 17:39, 11 July 2021 (diff | hist) . . (-17) . . 2021 JMPSC Invitationals (current)
- 17:39, 11 July 2021 (diff | hist) . . (-17) . . 2021 JMPSC Accuracy (current)
- 17:39, 11 July 2021 (diff | hist) . . (-17) . . 2021 JMPSC Sprint (current)
- 17:34, 11 July 2021 (diff | hist) . . (-4) . . Template:JMPSC Notice (current)
- 17:32, 11 July 2021 (diff | hist) . . (+6) . . 2021 JMPSC Invitationals Problems/Problem 15
- 17:32, 11 July 2021 (diff | hist) . . (+6) . . 2021 JMPSC Invitationals Problems/Problem 14
- 17:31, 11 July 2021 (diff | hist) . . (+6) . . 2021 JMPSC Invitationals Problems/Problem 13
- 17:31, 11 July 2021 (diff | hist) . . (+6) . . 2021 JMPSC Invitationals Problems/Problem 12
- 17:31, 11 July 2021 (diff | hist) . . (+6) . . 2021 JMPSC Invitationals Problems/Problem 11
- 17:31, 11 July 2021 (diff | hist) . . (+6) . . 2021 JMPSC Invitationals Problems/Problem 10
- 17:31, 11 July 2021 (diff | hist) . . (+6) . . 2021 JMPSC Invitationals Problems/Problem 9
- 17:31, 11 July 2021 (diff | hist) . . (+6) . . 2021 JMPSC Invitationals Problems/Problem 8
- 17:30, 11 July 2021 (diff | hist) . . (+6) . . 2021 JMPSC Invitationals Problems/Problem 7
- 17:30, 11 July 2021 (diff | hist) . . (+6) . . 2021 JMPSC Invitationals Problems/Problem 6
- 17:30, 11 July 2021 (diff | hist) . . (+6) . . 2021 JMPSC Invitationals Problems/Problem 5
- 17:30, 11 July 2021 (diff | hist) . . (+6) . . 2021 JMPSC Invitationals Problems/Problem 4
- 17:30, 11 July 2021 (diff | hist) . . (+6) . . 2021 JMPSC Invitationals Problems/Problem 3
- 17:30, 11 July 2021 (diff | hist) . . (+6) . . 2021 JMPSC Invitationals Problems/Problem 2
- 17:29, 11 July 2021 (diff | hist) . . (+14) . . 2021 JMPSC Invitationals Problems/Problem 1
- 17:29, 11 July 2021 (diff | hist) . . (-8) . . 2021 JMPSC Invitationals Problems/Problem 1
- 17:26, 11 July 2021 (diff | hist) . . (+7) . . JMPSC Problems and Solutions
- 17:26, 11 July 2021 (diff | hist) . . (+32) . . JMPSC Problems and Solutions
- 17:25, 11 July 2021 (diff | hist) . . (-31) . . JMPSC Problems and Solutions
- 17:25, 11 July 2021 (diff | hist) . . (+10) . . 2021 JMPSC Accuracy Problems/Problem 15
- 17:25, 11 July 2021 (diff | hist) . . (+10) . . 2021 JMPSC Accuracy Problems/Problem 14 (current)
- 17:24, 11 July 2021 (diff | hist) . . (+10) . . 2021 JMPSC Accuracy Problems/Problem 13
- 17:24, 11 July 2021 (diff | hist) . . (+10) . . 2021 JMPSC Accuracy Problems/Problem 12 (current)
- 17:24, 11 July 2021 (diff | hist) . . (+10) . . 2021 JMPSC Accuracy Problems/Problem 11
- 17:24, 11 July 2021 (diff | hist) . . (+10) . . 2021 JMPSC Accuracy Problems/Problem 10 (current)
- 17:24, 11 July 2021 (diff | hist) . . (+8) . . 2021 JMPSC Accuracy Problems/Problem 9 (current)
- 17:23, 11 July 2021 (diff | hist) . . (+8) . . 2021 JMPSC Accuracy Problems/Problem 8 (current)
- 17:23, 11 July 2021 (diff | hist) . . (+8) . . 2021 JMPSC Accuracy Problems/Problem 7
- 17:23, 11 July 2021 (diff | hist) . . (+8) . . 2021 JMPSC Accuracy Problems/Problem 6
- 17:23, 11 July 2021 (diff | hist) . . (+4) . . 2021 JMPSC Accuracy Problems/Problem 5
- 17:23, 11 July 2021 (diff | hist) . . (+4) . . 2021 JMPSC Accuracy Problems/Problem 4 (current)
- 17:23, 11 July 2021 (diff | hist) . . (+4) . . 2021 JMPSC Accuracy Problems/Problem 3 (current)
- 17:23, 11 July 2021 (diff | hist) . . (+4) . . 2021 JMPSC Accuracy Problems/Problem 2
- 17:22, 11 July 2021 (diff | hist) . . (+4) . . 2021 JMPSC Accuracy Problems/Problem 1 (→See also)
- 17:21, 11 July 2021 (diff | hist) . . (+232) . . 2021 JMPSC Accuracy Problems/Problem 5
- 17:21, 11 July 2021 (diff | hist) . . (+232) . . 2021 JMPSC Accuracy Problems/Problem 4
- 17:21, 11 July 2021 (diff | hist) . . (+232) . . 2021 JMPSC Accuracy Problems/Problem 3
- 17:21, 11 July 2021 (diff | hist) . . (+232) . . 2021 JMPSC Accuracy Problems/Problem 2
- 17:20, 11 July 2021 (diff | hist) . . (-2) . . 2021 JMPSC Accuracy Problems/Problem 1 (→See also)
- 17:20, 11 July 2021 (diff | hist) . . (+232) . . 2021 JMPSC Accuracy Problems/Problem 1
- 17:16, 11 July 2021 (diff | hist) . . (+228) . . 2021 JMPSC Sprint Problems/Problem 16
- 17:15, 11 July 2021 (diff | hist) . . (+228) . . 2021 JMPSC Sprint Problems/Problem 15
- 17:15, 11 July 2021 (diff | hist) . . (+228) . . 2021 JMPSC Sprint Problems/Problem 14 (current)
- 17:15, 11 July 2021 (diff | hist) . . (+228) . . 2021 JMPSC Sprint Problems/Problem 13
- 17:15, 11 July 2021 (diff | hist) . . (+228) . . 2021 JMPSC Sprint Problems/Problem 12
- 17:14, 11 July 2021 (diff | hist) . . (+228) . . 2021 JMPSC Sprint Problems/Problem 11
- 17:14, 11 July 2021 (diff | hist) . . (+228) . . 2021 JMPSC Sprint Problems/Problem 10 (current)
- 17:14, 11 July 2021 (diff | hist) . . (+228) . . 2021 JMPSC Sprint Problems/Problem 9 (current)
- 17:13, 11 July 2021 (diff | hist) . . (+228) . . 2021 JMPSC Sprint Problems/Problem 8
- 17:13, 11 July 2021 (diff | hist) . . (+228) . . 2021 JMPSC Sprint Problems/Problem 7
- 17:13, 11 July 2021 (diff | hist) . . (+228) . . 2021 JMPSC Sprint Problems/Problem 6 (current)
- 17:12, 11 July 2021 (diff | hist) . . (+228) . . 2021 JMPSC Sprint Problems/Problem 5
- 17:12, 11 July 2021 (diff | hist) . . (+228) . . 2021 JMPSC Sprint Problems/Problem 4 (→Solution) (current)
- 17:12, 11 July 2021 (diff | hist) . . (+228) . . 2021 JMPSC Sprint Problems/Problem 3
- 17:12, 11 July 2021 (diff | hist) . . (+227) . . 2021 JMPSC Sprint Problems/Problem 2
- 17:11, 11 July 2021 (diff | hist) . . (-1) . . 2021 JMPSC Sprint Problems/Problem 1
- 17:10, 11 July 2021 (diff | hist) . . (+1) . . 2021 JMPSC Sprint Problems/Problem 1
- 17:10, 11 July 2021 (diff | hist) . . (+19) . . 2021 JMPSC Sprint Problems/Problem 1
- 17:09, 11 July 2021 (diff | hist) . . (+144) . . 2021 JMPSC Sprint Problems/Problem 1 (→Solution 2)
- 17:06, 11 July 2021 (diff | hist) . . (+65) . . 2021 JMPSC Sprint Problems/Problem 1
- 16:47, 11 July 2021 (diff | hist) . . (+1) . . 2021 JMPSC Accuracy Problems/Problem 15 (→Solution)
- 16:46, 11 July 2021 (diff | hist) . . (+1) . . 2021 JMPSC Accuracy Problems/Problem 15 (→Solution)
- 16:46, 11 July 2021 (diff | hist) . . (+45) . . 2021 JMPSC Accuracy Problems/Problem 15 (→Solution)
- 16:44, 11 July 2021 (diff | hist) . . (-1) . . 2021 JMPSC Accuracy Problems/Problem 15 (→Solution)
- 16:43, 11 July 2021 (diff | hist) . . (+86) . . 2021 JMPSC Accuracy Problems/Problem 15 (→Solution)
- 16:42, 11 July 2021 (diff | hist) . . (-48) . . 2021 JMPSC Accuracy Problems/Problem 15 (→Solution)
- 16:41, 11 July 2021 (diff | hist) . . (-3) . . 2021 JMPSC Accuracy Problems/Problem 15 (→Solution)
- 16:40, 11 July 2021 (diff | hist) . . (-11) . . 2021 JMPSC Accuracy Problems/Problem 15 (→Solution)
- 16:40, 11 July 2021 (diff | hist) . . (-1) . . 2021 JMPSC Accuracy Problems/Problem 15 (→Solution)
- 16:39, 11 July 2021 (diff | hist) . . (-7) . . 2021 JMPSC Accuracy Problems/Problem 15 (→Solution)
- 16:38, 11 July 2021 (diff | hist) . . (+2) . . 2021 JMPSC Accuracy Problems/Problem 15 (→Solution)
- 16:38, 11 July 2021 (diff | hist) . . (+1) . . 2021 JMPSC Accuracy Problems/Problem 15 (→Solution)
- 16:38, 11 July 2021 (diff | hist) . . (-10) . . 2021 JMPSC Accuracy Problems/Problem 15 (→Solution)
- 16:37, 11 July 2021 (diff | hist) . . (+4) . . 2021 JMPSC Accuracy Problems/Problem 15 (→Solution)
- 16:37, 11 July 2021 (diff | hist) . . (+11) . . 2021 JMPSC Accuracy Problems/Problem 15 (→Solution)
- 16:36, 11 July 2021 (diff | hist) . . (+3) . . 2021 JMPSC Accuracy Problems/Problem 15 (→Solution)
- 16:35, 11 July 2021 (diff | hist) . . (+560) . . 2021 JMPSC Accuracy Problems/Problem 15 (→Solution)
- 16:27, 11 July 2021 (diff | hist) . . (+149) . . 2021 JMPSC Invitationals
- 16:27, 11 July 2021 (diff | hist) . . (+149) . . 2021 JMPSC Accuracy
- 16:26, 11 July 2021 (diff | hist) . . (+5) . . 2021 JMPSC Sprint
- 16:25, 11 July 2021 (diff | hist) . . (0) . . Template:JMPSC Notice
- 16:25, 11 July 2021 (diff | hist) . . (+1) . . Template:JMPSC Notice
- 16:25, 11 July 2021 (diff | hist) . . (-1) . . Template:JMPSC Notice
- 16:25, 11 July 2021 (diff | hist) . . (+6) . . Template:JMPSC Notice
- 16:25, 11 July 2021 (diff | hist) . . (0) . . N File:JMPSC.png (current)
- 16:24, 11 July 2021 (diff | hist) . . (+177) . . N Template:JMPSC Notice (Created page with "The problems on this page are copyrighted by the [http://jmpsc.org Junior Mathematicians' Problem Solving Competition]. middle <div style="clear:both;"></div>")
- 16:22, 11 July 2021 (diff | hist) . . (0) . . 2021 JMPSC Sprint
- 16:22, 11 July 2021 (diff | hist) . . (0) . . 2021 JMPSC Sprint
- 16:19, 11 July 2021 (diff | hist) . . (-76) . . 2021 JMPSC Sprint (→See also)
- 16:13, 11 July 2021 (diff | hist) . . (-4) . . 2021 JMPSC Sprint
- 16:13, 11 July 2021 (diff | hist) . . (+223) . . 2021 JMPSC Sprint
- 16:10, 11 July 2021 (diff | hist) . . (-4) . . JMPSC Problems and Solutions
- 16:09, 11 July 2021 (diff | hist) . . (+8) . . JMPSC Problems and Solutions
- 16:09, 11 July 2021 (diff | hist) . . (+79) . . JMPSC Problems and Solutions
- 16:02, 11 July 2021 (diff | hist) . . (-81) . . JMPSC Problems and Solutions
- 16:02, 11 July 2021 (diff | hist) . . (-35) . . JMPSC Problems and Solutions
- 16:02, 11 July 2021 (diff | hist) . . (+232) . . JMPSC Problems and Solutions
- 15:57, 11 July 2021 (diff | hist) . . (+36) . . JMPSC Problems and Solutions
- 15:54, 11 July 2021 (diff | hist) . . (-14) . . 2021 JMPSC Invitationals Problems/Problem 4 (→Solution)
- 15:54, 11 July 2021 (diff | hist) . . (+38) . . 2021 JMPSC Invitationals Problems/Problem 4 (→Solution)
- 15:52, 11 July 2021 (diff | hist) . . (+678) . . 2021 JMPSC Invitationals Problems/Problem 8 (→Solution)
- 15:49, 11 July 2021 (diff | hist) . . (-2) . . 2021 JMPSC Invitationals Problems/Problem 11 (→Solution)
- 15:49, 11 July 2021 (diff | hist) . . (+39) . . 2021 JMPSC Invitationals Problems/Problem 11 (→Solution)
- 15:47, 11 July 2021 (diff | hist) . . (+1,438) . . 2021 JMPSC Invitationals Problems/Problem 11 (→Solution)
- 15:45, 11 July 2021 (diff | hist) . . (+24) . . 2021 JMPSC Invitationals Problems/Problem 5 (→Problem)
- 15:45, 11 July 2021 (diff | hist) . . (+798) . . 2021 JMPSC Invitationals Problems/Problem 5 (→Solution)
- 15:44, 11 July 2021 (diff | hist) . . (+16) . . 2021 JMPSC Invitationals Problems/Problem 2 (→Solution)
- 15:27, 11 July 2021 (diff | hist) . . (0) . . 2021 JMPSC Invitationals Problems/Problem 2 (→Solution)
- 15:27, 11 July 2021 (diff | hist) . . (+217) . . 2021 JMPSC Invitationals Problems/Problem 2 (→Solution)
- 15:26, 11 July 2021 (diff | hist) . . (0) . . N File:Invites2.png (current)
- 15:17, 11 July 2021 (diff | hist) . . (+4,386) . . 2021 JMPSC Invitationals Problems
- 15:11, 11 July 2021 (diff | hist) . . (+16) . . 2021 JMPSC Invitationals Problems/Problem 14 (→Solution)
- 15:10, 11 July 2021 (diff | hist) . . (+5,313) . . N 2021 JMPSC Invitationals Problems/Problem 14 (Created page with "==Problem== Let there be a <math>\triangle ACD</math> such that <math>AC=5</math>, <math>AD=12</math>, and <math>CD=13</math>, and let <math>B</math> be a point on <math>AD</m...")
- 15:09, 11 July 2021 (diff | hist) . . (+378) . . N 2021 JMPSC Invitationals Problems/Problem 15 (Created page with "==Problem== Abhishek is choosing positive integer factors of <math>2021 \times 2^{2021}</math> with replacement. After a minute passes, he chooses a random factor and writes i...")
- 15:08, 11 July 2021 (diff | hist) . . (+957) . . N 2021 JMPSC Invitationals Problems/Problem 13 (Created page with "==Problem== Let <math>p</math> be a prime and <math>n</math> be an odd integer (not necessarily positive) such that <cmath>\dfrac{p^{n+p+2021}}{(p+n)^2}</cmath> is an integer....")
- 15:07, 11 July 2021 (diff | hist) . . (+230) . . N 2021 JMPSC Invitationals Problems/Problem 12 (Created page with "==Problem== Rectangle <math>ABCD</math> is drawn such that <math>AB=7</math> and <math>BC=4</math>. <math>BDEF</math> is a square that contains vertex <math>C</math> in its in...")
- 15:07, 11 July 2021 (diff | hist) . . (+209) . . N 2021 JMPSC Invitationals Problems/Problem 11 (Created page with "==Problem== For some <math>n</math>, the arithmetic progression <cmath>4,9,14,\ldots,n</cmath> has exactly <math>36</math> perfect squares. Find the maximum possible value of...")
- 15:07, 11 July 2021 (diff | hist) . . (+441) . . N 2021 JMPSC Invitationals Problems/Problem 10 (Created page with "==Problem== A point <math>P</math> is chosen in isosceles trapezoid <math>ABCD</math> with <math>AB=4</math>, <math>BC=20</math>, <math>CD=28</math>, and <math>DA=20</math>. I...")
- 15:07, 11 July 2021 (diff | hist) . . (+249) . . N 2021 JMPSC Invitationals Problems/Problem 9 (Created page with "==Problem== In <math>\triangle ABC</math>, let <math>D</math> be on <math>\overline{AB}</math> such that <math>AD=DC</math>. If <math>\angle ADC=2\angle ABC</math>, <math>AD=1...")
- 15:06, 11 July 2021 (diff | hist) . . (+2) . . 2021 JMPSC Invitationals Problems/Problem 8 (→Problem)
- 15:05, 11 July 2021 (diff | hist) . . (+197) . . N 2021 JMPSC Invitationals Problems/Problem 8 (Created page with "==Problem== Let <math>x</math> and <math>y</math> be real numbers that satisfy <cmath>(x+y)^2(20x+21y) = 12</cmath> (x+y)(20x+21y)^2 = 18.<math></math> Find <math>21x+20y</mat...")
- 15:05, 11 July 2021 (diff | hist) . . (+411) . . N 2021 JMPSC Invitationals Problems/Problem 7 (Created page with "==Problem== In a <math>3 \times 3</math> grid with nine square cells, how many ways can Jacob shade in some nonzero number of cells such that each row, column, and diagonal c...")
- 15:04, 11 July 2021 (diff | hist) . . (+487) . . N 2021 JMPSC Invitationals Problems/Problem 6 (Created page with "==Problem== Five friends decide to meet together for a party. However, they did not plan the party well, and at noon, every friend leaves their own house and travels to one of...")
- 15:03, 11 July 2021 (diff | hist) . . (0) . . 2021 JMPSC Invitationals Problems/Problem 5 (→Problem)
- 15:02, 11 July 2021 (diff | hist) . . (+434) . . N 2021 JMPSC Invitationals Problems/Problem 5 (Created page with "==Problem== An <math>n</math>-pointed fork is a figure that consists of two parts: a handle that weighs <math>12</math> ounces and <math>n</math> "skewers" that each weigh a n...")
- 15:02, 11 July 2021 (diff | hist) . . (0) . . N File:Invites5.png (current)
- 15:01, 11 July 2021 (diff | hist) . . (-1) . . 2021 JMPSC Invitationals Problems/Problem 4 (→Problem)
- 15:01, 11 July 2021 (diff | hist) . . (+340) . . N 2021 JMPSC Invitationals Problems/Problem 4 (Created page with "==Problem== Let <math>(x_n)_{n\geq 0}</math> and <math>(y_n)_{n\geq 0}</math> be sequences of real numbers such that <math>x_0 = 3</math>, <math>y_0 = 1</math>, and, for all...")
- 15:00, 11 July 2021 (diff | hist) . . (+238) . . N 2021 JMPSC Invitationals Problems/Problem 3 (Created page with "==Problem== There are exactly <math>5</math> even positive integers less than or equal to <math>100</math> that are divisible by <math>x</math>. What is the sum of all possibl...")
- 14:59, 11 July 2021 (diff | hist) . . (+201) . . N 2021 JMPSC Invitationals Problems/Problem 2 (Created page with "==Problem== Two quadrilaterals are drawn on the plane such that they share no sides. What is the maximum possible number of intersections of the boundaries of the two quadrila...")
- 14:59, 11 July 2021 (diff | hist) . . (+176) . . N 2021 JMPSC Invitationals Problems/Problem 1 (Created page with "==Problem== The equation <math>ax^2 + 5x = 4,</math> where <math>a</math> is some constant, has <math>x = 1</math> as a solution. What is the other solution? ==Solution== asdf")
- 14:58, 11 July 2021 (diff | hist) . . (+1,625) . . N 2021 JMPSC Invitationals Problems (Created page with "#This is a fifteen question free-response test. Each question has exactly one integer answer. #You have 80 minutes to complete the test. #You will receive 15 points for each c...")
- 14:50, 11 July 2021 (diff | hist) . . (+61) . . N 2021 JMPSC Invitationals Answer Key (Created page with "#4 #16 #47 #307 #22 #271 #17 #79 #24 #59 #8459 #83 #-8 #24 #8") (current)
- 13:57, 11 July 2021 (diff | hist) . . (+498) . . 2021 JMPSC Accuracy Problems/Problem 11 (→Solution 3 (A Little Bashy))
- 13:43, 11 July 2021 (diff | hist) . . (+1,312) . . N 2021 JMPSC Invitationals (Created page with "'''2021 JMPSC Invitationals (Middle School)''' problems and solutions. The test was held on July 10th, 2021. *2021 JMPSC Invitationals Problems *2021 JMPSC Invitationa...")
- 13:23, 11 July 2021 (diff | hist) . . (+31) . . JMPSC Problems and Solutions
- 23:31, 10 July 2021 (diff | hist) . . (-85) . . 2021 JMPSC Sprint Problems
- 23:31, 10 July 2021 (diff | hist) . . (-85) . . 2021 JMPSC Accuracy Problems
- 23:27, 10 July 2021 (diff | hist) . . (-33) . . JMPSC Problems and Solutions (→Resources)
- 23:20, 10 July 2021 (diff | hist) . . (+675) . . 2021 JMPSC Sprint Problems/Problem 20 (→Solution)
- 23:18, 10 July 2021 (diff | hist) . . (+17) . . 2021 JMPSC Accuracy Problems/Problem 12 (→Solution)
- 23:17, 10 July 2021 (diff | hist) . . (+17) . . 2021 JMPSC Accuracy Problems/Problem 12 (→Solution)
- 23:17, 10 July 2021 (diff | hist) . . (+1,134) . . 2021 JMPSC Accuracy Problems/Problem 12 (→Solution)
- 23:16, 10 July 2021 (diff | hist) . . (0) . . N File:Accuracy12sol.jpeg (current)
- 22:54, 10 July 2021 (diff | hist) . . (+6,908) . . N 2021 JMPSC Sprint Problems (Created page with "#This is a twenty question free-response test. Each question has exactly one integer answer. #You have 50 minutes to complete the test. #You will receive 3 points for each cor...")
- 22:49, 10 July 2021 (diff | hist) . . (+225) . . N 2021 JMPSC Sprint Problems/Problem 20 (Created page with "==Problem== For all integers <math>x</math> and <math>y</math>, define the operation <math>\Delta</math> as <cmath>x \Delta y = x^3+y^2+x+y.</cmath> Find <cmath>\sqrt{\dfrac{2...")
- 22:48, 10 July 2021 (diff | hist) . . (+389) . . N 2021 JMPSC Sprint Problems/Problem 19 (Created page with "==Problem== As an April Fool’s prank, Sean hacks his teacher’s digital clock and switches each digit to a certain letter. Right now, the hacked clock displays <math>\textb...")
- 22:47, 10 July 2021 (diff | hist) . . (+383) . . N 2021 JMPSC Sprint Problems/Problem 18 (Created page with "==Problem== On square <math>ABCD</math> with side length <math>28</math>, <math>M</math> is the midpoint of <math>\overline{CD}</math>. Let <math>E</math> be the foot of the a...")
- 22:47, 10 July 2021 (diff | hist) . . (+139) . . N 2021 JMPSC Sprint Problems/Problem 17 (Created page with "==Problem== What is the smallest positive multiple of <math>1003</math> that has no zeros in its decimal representation? ==Solution== asdf")
- 22:46, 10 July 2021 (diff | hist) . . (0) . . 2021 JMPSC Sprint Problems/Problem 16 (→Problem)
- 22:46, 10 July 2021 (diff | hist) . . (+1) . . 2021 JMPSC Sprint Problems/Problem 16 (→Problem)
- 22:46, 10 July 2021 (diff | hist) . . (+267) . . N 2021 JMPSC Sprint Problems/Problem 16 (Created page with "==Problem== <math>ABCD</math> is a concave quadrilateral with <math>AB = 12</math>, <math>BC = 16</math>, <math>AD = CD = 26</math>, and <math>\angle ABC=90^\circ</math>. Fin...")
- 22:45, 10 July 2021 (diff | hist) . . (0) . . N File:Sprint16.jpg (current)
- 22:38, 10 July 2021 (diff | hist) . . (+87) . . N 2021 JMPSC Sprint Problems/Problem 15 (Created page with "==Problem== Find the last two digits of <math>10^{10}-5^{10}.</math> ==Solution== asdf")
- 22:37, 10 July 2021 (diff | hist) . . (-4) . . 2021 JMPSC Sprint Problems/Problem 14 (→Problem)
- 22:37, 10 July 2021 (diff | hist) . . (+667) . . N 2021 JMPSC Sprint Problems/Problem 14 (Created page with "==Problem== Ari, Bryant, Chandler, and David each tell one truth and one lie. Ari: Bryant is the tallest among the four of us. Chandler is the shortest among the four of us...")
- 22:23, 10 July 2021 (diff | hist) . . (+311) . . 2021 JMPSC Sprint Problems/Problem 13 (→Problem)
- 22:23, 10 July 2021 (diff | hist) . . (+59) . . N 2021 JMPSC Sprint Problems/Problem 13 (Created page with "==Problem== <center> 200px </center>")
- 22:22, 10 July 2021 (diff | hist) . . (0) . . N File:Sprint14.jpg (current)
- 22:21, 10 July 2021 (diff | hist) . . (+198) . . N 2021 JMPSC Sprint Problems/Problem 12 (Created page with "==Problem== The solution to the equation <math>x \sqrt{x \sqrt{x}}=2^{63}</math> can be written as <math>2^m</math>, where <math>m</math> is a real number. What is <math>m</ma...")
- 22:21, 10 July 2021 (diff | hist) . . (+146) . . N 2021 JMPSC Sprint Problems/Problem 11 (Created page with "==Problem== How many numbers are in the finite sequence of consecutive perfect squares <cmath>9, 16, 25, \ldots , 2500?</cmath> ==Solution== asdf")
- 22:16, 10 July 2021 (diff | hist) . . (+435) . . N 2021 JMPSC Sprint Problems/Problem 10 (Created page with "==Problem== Serena gets a grade of <math>75\%</math> for her chapter test. She doesn't remember how many problems there were, but she remembers that there were at most <math>1...")
- 22:16, 10 July 2021 (diff | hist) . . (+242) . . N 2021 JMPSC Sprint Problems/Problem 9 (Created page with "==Problem== A machine cuts a piece of metal at a constant rate. After leaving the machine alone for twenty minutes, the metal has been split into six pieces. How many more min...")
- 22:15, 10 July 2021 (diff | hist) . . (+121) . . N 2021 JMPSC Sprint Problems/Problem 8 (Created page with "==Problem== How many positive two-digit numbers exist such that the product of its digits is not zero? ==Solution== asdf")
- 22:14, 10 July 2021 (diff | hist) . . (0) . . 2021 JMPSC Sprint Problems/Problem 7
- 22:14, 10 July 2021 (diff | hist) . . (+419) . . N 2021 JMPSC Sprint Problems/Problem 7 (Created page with "==Problem== How many sets of three circles are in the diagram below such that their centers lie on the same line and each circle in the set is adjacent to another circle in th...")
- 22:13, 10 July 2021 (diff | hist) . . (0) . . N File:Sprint9.png (current)
- 22:13, 10 July 2021 (diff | hist) . . (+253) . . N 2021 JMPSC Sprint Problems/Problem 6 (Created page with "==Problem== Luis has <math>100</math> coins that are all either nickels or dimes. If the probability of randomly picking a nickel from these <math>100</math> coins is <math>\f...")
- 22:13, 10 July 2021 (diff | hist) . . (+97) . . N 2021 JMPSC Sprint Problems/Problem 5 (Created page with "==Problem== What two-digit even number has digits that sum to <math>17</math>? ==Solution== asdf")
- 22:12, 10 July 2021 (diff | hist) . . (+1) . . 2021 JMPSC Sprint Problems/Problem 4 (→Problem)
- 22:12, 10 July 2021 (diff | hist) . . (0) . . N File:Sprint5.png (current)
- 22:12, 10 July 2021 (diff | hist) . . (+547) . . N 2021 JMPSC Sprint Problems/Problem 4 (Created page with "==Problem== A standard chess-board is an 8 by 8 grid of squares. A bishop is placed at square C5 (row 5, column C) and a rook is placed at square E4 (row 4, column E). How man...")
- 22:10, 10 July 2021 (diff | hist) . . (0) . . 2021 JMPSC Sprint Problems/Problem 3 (→Problem)
- 22:09, 10 July 2021 (diff | hist) . . (+3) . . 2021 JMPSC Sprint Problems/Problem 3 (→Problem)
- 22:09, 10 July 2021 (diff | hist) . . (+245) . . N 2021 JMPSC Sprint Problems/Problem 3 (Created page with "==Problem== If all angles marked with a red square are <math>90^\circ</math> and all angles marked with one black curve are equal, find the measure of the angle with a questi...")
- 22:08, 10 July 2021 (diff | hist) . . (0) . . N File:Sprint4.png (current)
- 22:07, 10 July 2021 (diff | hist) . . (+239) . . N 2021 JMPSC Sprint Problems/Problem 2 (Created page with "==Problem== Brady has an unlimited supply of quarters (\$0.25), dimes (\$0.10), nickels (\$0.05), and pennies (\$0.01). What is the least number (quantity, not type) of coins...")
- 21:48, 10 July 2021 (diff | hist) . . (+4,124) . . 2021 JMPSC Accuracy Problems
- 21:48, 10 July 2021 (diff | hist) . . (0) . . 2021 JMPSC Accuracy Problems/Problem 3 (→Problem)
- 21:47, 10 July 2021 (diff | hist) . . (-1) . . 2021 JMPSC Accuracy Problems/Problem 12 (→Problem)
- 21:42, 10 July 2021 (diff | hist) . . (+7) . . 2021 JMPSC Accuracy Problems
- 21:39, 10 July 2021 (diff | hist) . . (-34) . . 2021 JMPSC Accuracy Problems
- 21:39, 10 July 2021 (diff | hist) . . (+791) . . N 2021 JMPSC Accuracy Problems (Created page with "{{2021 JMPSC Accuracy Problems}} #This is a fifteen question free-response test. Each question has exactly one integer answer. #You have 60 minutes to complete the test. #You...")
- 21:34, 10 July 2021 (diff | hist) . . (+354) . . N 2021 JMPSC Accuracy Problems/Problem 15 (Created page with "==Problem== For all positive integers <math>n,</math> define the function <math>f(n)</math> to output <math>4\underbrace{777 \cdots 7}_{n\ \text{sevens}}5.</math> For example,...")
- 21:34, 10 July 2021 (diff | hist) . . (+199) . . N 2021 JMPSC Accuracy Problems/Problem 14 (Created page with "==Problem== What is the leftmost digit of the product <cmath>\underbrace{161616 \cdots 16}_{100 \text{ digits }} \times \underbrace{252525 \cdots 25}_{100 \text{ digits }}?</c...")
- 21:32, 10 July 2021 (diff | hist) . . (+189) . . N 2021 JMPSC Accuracy Problems/Problem 13 (Created page with "==Problem== Let <math>x</math> and <math>y</math> be nonnegative integers such that <math>(x+y)^2+(xy)^2=25.</math> Find the sum of all possible values of <math>x.</math> ==S...")
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