Art of Problem Solving
AoPS Online AoPS Online
Math texts, online classes, and more
for students in grades 5-12.
Visit AoPS Online ‚
Books for Grades 5-12 Online Courses
Beast Academy Beast Academy
Engaging math books and online learning
for students ages 6-13.
Visit Beast Academy ‚
Books for Ages 6-13 Beast Academy Online
AoPS Academy AoPS Academy
Small live classes for advanced math
and language arts learners in grades 1-12.
Visit AoPS Academy ‚
Find a Physical Campus Visit the Virtual Campus

Stay ahead of learning milestones! Enroll in a class over the summer!
Contests & Programs AMC and other contests, summer programs, etc.
AMC and other contests, summer programs, etc.
3 M G
BBookmark  VNew Topic kLocked
Contests & Programs AMC and other contests, summer programs, etc.
AMC and other contests, summer programs, etc.
3 M G
BBookmark  VNew Topic kLocked
t 
34,592 topics
w
3 users
TOPICS
No tags match your search
M
AMC
AIME
AMC 10
geometry
USA(J)MO
AMC 12
USAMO
AIME I
AMC 10 A
USAJMO
AMC 8
poll
MATHCOUNTS
AMC 10 B
number theory
probability
summer program
trigonometry
algebra
AIME II
AMC 12 A
function
AMC 12 B
email
calculus
inequalities
ARML
analytic geometry
3D geometry
ratio
polynomial
AwesomeMath
search
college
AoPS Books
HMMT
USAMTS
quadratics
Alcumus
PROMYS
geometric transformation
LaTeX
Mathcamp
rectangle
logarithms
modular arithmetic
complex numbers
contests
Ross Mathematics Program
AMC10
No tags match your search
M
G
Topic
First Poster
Last Poster
H
k a April Highlights and 2025 AoPS Online Class Information
jlacosta   0
Apr 2, 2025
Spring is in full swing and summer is right around the corner, what are your plans? At AoPS Online our schedule has new classes starting now through July, so be sure to keep your skills sharp and be prepared for the Fall school year! Check out the schedule of upcoming classes below.

WOOT early bird pricing is in effect, don’t miss out! If you took MathWOOT Level 2 last year, no worries, it is all new problems this year! Our Worldwide Online Olympiad Training program is for high school level competitors. AoPS designed these courses to help our top students get the deep focus they need to succeed in their specific competition goals. Check out the details at this link for all our WOOT programs in math, computer science, chemistry, and physics.

Looking for summer camps in math and language arts? Be sure to check out the video-based summer camps offered at the Virtual Campus that are 2- to 4-weeks in duration. There are middle and high school competition math camps as well as Math Beasts camps that review key topics coupled with fun explorations covering areas such as graph theory (Math Beasts Camp 6), cryptography (Math Beasts Camp 7-8), and topology (Math Beasts Camp 8-9)!

Be sure to mark your calendars for the following events:
[list][*]April 3rd (Webinar), 4pm PT/7:00pm ET, Learning with AoPS: Perspectives from a Parent, Math Camp Instructor, and University Professor
[*]April 8th (Math Jam), 4:30pm PT/7:30pm ET, 2025 MATHCOUNTS State Discussion
April 9th (Webinar), 4:00pm PT/7:00pm ET, Learn about Video-based Summer Camps at the Virtual Campus
[*]April 10th (Math Jam), 4:30pm PT/7:30pm ET, 2025 MathILy and MathILy-Er Math Jam: Multibackwards Numbers
[*]April 22nd (Webinar), 4:00pm PT/7:00pm ET, Competitive Programming at AoPS (USACO).[/list]
Our full course list for upcoming classes is below:
All classes run 7:30pm-8:45pm ET/4:30pm - 5:45pm PT unless otherwise noted.

Introductory: Grades 5-10

Prealgebra 1 Self-Paced

Prealgebra 1
Sunday, Apr 13 - Aug 10
Tuesday, May 13 - Aug 26
Thursday, May 29 - Sep 11
Sunday, Jun 15 - Oct 12
Monday, Jun 30 - Oct 20
Wednesday, Jul 16 - Oct 29

Prealgebra 2 Self-Paced

Prealgebra 2
Sunday, Apr 13 - Aug 10
Wednesday, May 7 - Aug 20
Monday, Jun 2 - Sep 22
Sunday, Jun 29 - Oct 26
Friday, Jul 25 - Nov 21

Introduction to Algebra A Self-Paced

Introduction to Algebra A
Monday, Apr 7 - Jul 28
Sunday, May 11 - Sep 14 (1:00 - 2:30 pm ET/10:00 - 11:30 am PT)
Wednesday, May 14 - Aug 27
Friday, May 30 - Sep 26
Monday, Jun 2 - Sep 22
Sunday, Jun 15 - Oct 12
Thursday, Jun 26 - Oct 9
Tuesday, Jul 15 - Oct 28

Introduction to Counting & Probability Self-Paced

Introduction to Counting & Probability
Wednesday, Apr 16 - Jul 2
Thursday, May 15 - Jul 31
Sunday, Jun 1 - Aug 24
Thursday, Jun 12 - Aug 28
Wednesday, Jul 9 - Sep 24
Sunday, Jul 27 - Oct 19

Introduction to Number Theory
Thursday, Apr 17 - Jul 3
Friday, May 9 - Aug 1
Wednesday, May 21 - Aug 6
Monday, Jun 9 - Aug 25
Sunday, Jun 15 - Sep 14
Tuesday, Jul 15 - Sep 30

Introduction to Algebra B Self-Paced

Introduction to Algebra B
Wednesday, Apr 16 - Jul 30
Tuesday, May 6 - Aug 19
Wednesday, Jun 4 - Sep 17
Sunday, Jun 22 - Oct 19
Friday, Jul 18 - Nov 14

Introduction to Geometry
Wednesday, Apr 23 - Oct 1
Sunday, May 11 - Nov 9
Tuesday, May 20 - Oct 28
Monday, Jun 16 - Dec 8
Friday, Jun 20 - Jan 9
Sunday, Jun 29 - Jan 11
Monday, Jul 14 - Jan 19

Intermediate: Grades 8-12

Intermediate Algebra
Monday, Apr 21 - Oct 13
Sunday, Jun 1 - Nov 23
Tuesday, Jun 10 - Nov 18
Wednesday, Jun 25 - Dec 10
Sunday, Jul 13 - Jan 18
Thursday, Jul 24 - Jan 22

Intermediate Counting & Probability
Wednesday, May 21 - Sep 17
Sunday, Jun 22 - Nov 2

Intermediate Number Theory
Friday, Apr 11 - Jun 27
Sunday, Jun 1 - Aug 24
Wednesday, Jun 18 - Sep 3

Precalculus
Wednesday, Apr 9 - Sep 3
Friday, May 16 - Oct 24
Sunday, Jun 1 - Nov 9
Monday, Jun 30 - Dec 8

Advanced: Grades 9-12

Olympiad Geometry
Tuesday, Jun 10 - Aug 26

Calculus
Tuesday, May 27 - Nov 11
Wednesday, Jun 25 - Dec 17

Group Theory
Thursday, Jun 12 - Sep 11

Contest Preparation: Grades 6-12

MATHCOUNTS/AMC 8 Basics
Wednesday, Apr 16 - Jul 2
Friday, May 23 - Aug 15
Monday, Jun 2 - Aug 18
Thursday, Jun 12 - Aug 28
Sunday, Jun 22 - Sep 21
Tues & Thurs, Jul 8 - Aug 14 (meets twice a week!)

MATHCOUNTS/AMC 8 Advanced
Friday, Apr 11 - Jun 27
Sunday, May 11 - Aug 10
Tuesday, May 27 - Aug 12
Wednesday, Jun 11 - Aug 27
Sunday, Jun 22 - Sep 21
Tues & Thurs, Jul 8 - Aug 14 (meets twice a week!)

AMC 10 Problem Series
Friday, May 9 - Aug 1
Sunday, Jun 1 - Aug 24
Thursday, Jun 12 - Aug 28
Tuesday, Jun 17 - Sep 2
Sunday, Jun 22 - Sep 21 (1:00 - 2:30 pm ET/10:00 - 11:30 am PT)
Monday, Jun 23 - Sep 15
Tues & Thurs, Jul 8 - Aug 14 (meets twice a week!)

AMC 10 Final Fives
Sunday, May 11 - Jun 8
Tuesday, May 27 - Jun 17
Monday, Jun 30 - Jul 21

AMC 12 Problem Series
Tuesday, May 27 - Aug 12
Thursday, Jun 12 - Aug 28
Sunday, Jun 22 - Sep 21
Wednesday, Aug 6 - Oct 22

AMC 12 Final Fives
Sunday, May 18 - Jun 15

F=ma Problem Series
Wednesday, Jun 11 - Aug 27

WOOT Programs
Visit the pages linked for full schedule details for each of these programs!

MathWOOT Level 1
MathWOOT Level 2
ChemWOOT
CodeWOOT
PhysicsWOOT

Programming

Introduction to Programming with Python
Thursday, May 22 - Aug 7
Sunday, Jun 15 - Sep 14 (1:00 - 2:30 pm ET/10:00 - 11:30 am PT)
Tuesday, Jun 17 - Sep 2
Monday, Jun 30 - Sep 22

Intermediate Programming with Python
Sunday, Jun 1 - Aug 24
Monday, Jun 30 - Sep 22

USACO Bronze Problem Series
Tuesday, May 13 - Jul 29
Sunday, Jun 22 - Sep 1

Physics

Introduction to Physics
Wednesday, May 21 - Aug 6
Sunday, Jun 15 - Sep 14
Monday, Jun 23 - Sep 15

Physics 1: Mechanics
Thursday, May 22 - Oct 30
Monday, Jun 23 - Dec 15

Relativity
Sat & Sun, Apr 26 - Apr 27 (4:00 - 7:00 pm ET/1:00 - 4:00pm PT)
Mon, Tue, Wed & Thurs, Jun 23 - Jun 26 (meets every day of the week!)
0 replies
jlacosta
Apr 2, 2025
0 replies
J
H
k i Adding contests to the Contest Collections
dcouchman   1
N Apr 5, 2023 by v_Enhance
Want to help AoPS remain a valuable Olympiad resource? Help us add contests to AoPS's Contest Collections.

Find instructions and a list of contests to add here: https://artofproblemsolving.com/community/c40244h1064480_contests_to_add
1 reply
dcouchman
Sep 9, 2019
v_Enhance
Apr 5, 2023
J
H
k i Zero tolerance
ZetaX   49
N May 4, 2019 by NoDealsHere
Source: Use your common sense! (enough is enough)
Some users don't want to learn, some other simply ignore advises.
But please follow the following guideline:


To make it short: ALWAYS USE YOUR COMMON SENSE IF POSTING!
If you don't have common sense, don't post.


More specifically:

For new threads:


a) Good, meaningful title:
The title has to say what the problem is about in best way possible.
If that title occured already, it's definitely bad. And contest names aren't good either.
That's in fact a requirement for being able to search old problems.

Examples:
Bad titles:
- "Hard"/"Medium"/"Easy" (if you find it so cool how hard/easy it is, tell it in the post and use a title that tells us the problem)
- "Number Theory" (hey guy, guess why this forum's named that way¿ and is it the only such problem on earth¿)
- "Fibonacci" (there are millions of Fibonacci problems out there, all posted and named the same...)
- "Chinese TST 2003" (does this say anything about the problem¿)
Good titles:
- "On divisors of a³+2b³+4c³-6abc"
- "Number of solutions to x²+y²=6z²"
- "Fibonacci numbers are never squares"


b) Use search function:
Before posting a "new" problem spend at least two, better five, minutes to look if this problem was posted before. If it was, don't repost it. If you have anything important to say on topic, post it in one of the older threads.
If the thread is locked cause of this, use search function.

Update (by Amir Hossein). The best way to search for two keywords in AoPS is to input
[code]+"first keyword" +"second keyword"[/code]
so that any post containing both strings "first word" and "second form".


c) Good problem statement:
Some recent really bad post was:
[quote]$lim_{n\to 1}^{+\infty}\frac{1}{n}-lnn$[/quote]
It contains no question and no answer.
If you do this, too, you are on the best way to get your thread deleted. Write everything clearly, define where your variables come from (and define the "natural" numbers if used). Additionally read your post at least twice before submitting. After you sent it, read it again and use the Edit-Button if necessary to correct errors.


For answers to already existing threads:


d) Of any interest and with content:
Don't post things that are more trivial than completely obvious. For example, if the question is to solve $x^{3}+y^{3}=z^{3}$, do not answer with "$x=y=z=0$ is a solution" only. Either you post any kind of proof or at least something unexpected (like "$x=1337, y=481, z=42$ is the smallest solution). Someone that does not see that $x=y=z=0$ is a solution of the above without your post is completely wrong here, this is an IMO-level forum.
Similar, posting "I have solved this problem" but not posting anything else is not welcome; it even looks that you just want to show off what a genius you are.

e) Well written and checked answers:
Like c) for new threads, check your solutions at least twice for mistakes. And after sending, read it again and use the Edit-Button if necessary to correct errors.



To repeat it: ALWAYS USE YOUR COMMON SENSE IF POSTING!


Everything definitely out of range of common sense will be locked or deleted (exept for new users having less than about 42 posts, they are newbies and need/get some time to learn).

The above rules will be applied from next monday (5. march of 2007).
Feel free to discuss on this here.
49 replies
ZetaX
Feb 27, 2007
NoDealsHere
May 4, 2019
J
H
a hard geometry problen
Tuguldur   1
N 35 minutes ago by whwlqkd
Let $ABCD$ be a convex quadrilateral. Suppose that the circles with diameters $AB$ and $CD$ intersect at points $X$ and $Y$. Let $P=AC\cap BD$ and $Q=AD\cap BC$. Prove that the points $P$, $Q$, $X$ and $Y$ are concyclic.
( $AB$ and $CD$ are not the diagnols)
1 reply
Tuguldur
Yesterday at 3:56 PM
whwlqkd
35 minutes ago
J
H
Problem 6
blug   1
N 2 hours ago by atdaotlohbh
Source: Polish Math Olympiad 2025 Finals P6
A strictly decreasing function $f:(0, \infty)\Rightarrow (0, \infty)$ attaining all positive values and positive numbers $a_1\ne b_1$ are given. Numbers $a_2, b_2, a_3, b_3, ...$ satisfy
$$a_{n+1}=a_n+f(b_n),\;\;\;\;\;\;\;b_{n+1}=b_n+f(a_n)$$for every $n\geq 1$. Prove that there exists a positive integer $n$ satisfying $|a_n-b_n| >2025$.
1 reply
blug
Yesterday at 12:17 PM
atdaotlohbh
2 hours ago
J
H
Regarding Maaths olympiad prepration
omega2007   13
N 2 hours ago by omega2007
<Hey Everyone'>
I'm 10 grader student and Im starting prepration for maths olympiad..>>> From scratch (not 2+2=4 )

Do you haves compiled resources of Handouts,
PDF,
Links,
List of books topic wise
which are shared on AOPS (and from your perspective) for maths olympiad and any useful thing, which will help me in boosting Maths olympiad prepration.
13 replies
omega2007
Yesterday at 3:13 PM
omega2007
2 hours ago
J
H
D1010 : How it is possible ?
Dattier   16
N 2 hours ago by Dattier
Source: les dattes à Dattier
Is it true that$$\forall n \in \mathbb N^*, (24^n \times B \mod A) \mod 2 = 0 $$?

A=1728400904217815186787639216753921417860004366580219212750904
024377969478249664644267971025952530803647043121025959018172048
336953969062151534282052863307398281681465366665810775710867856
720572225880311472925624694183944650261079955759251769111321319
421445397848518597584590900951222557860592579005088853698315463
815905425095325508106272375728975

B=2275643401548081847207782760491442295266487354750527085289354
965376765188468052271190172787064418854789322484305145310707614
546573398182642923893780527037224143380886260467760991228567577
953725945090125797351518670892779468968705801340068681556238850
340398780828104506916965606659768601942798676554332768254089685
307970609932846902
16 replies
Dattier
Mar 10, 2025
Dattier
2 hours ago
J
H
Uhhhhhhhhhh
sealight2107   1
N 3 hours ago by arqady
Let $x,y,z$ be reals such that $0<x,y,z<\frac{1}{2}$ and $x+y+z=1$.Prove that:
$4(\frac{1}{x}+\frac{1}{y}+\frac{1}{z}) - \frac{1}{xyz} >8$
1 reply
sealight2107
4 hours ago
arqady
3 hours ago
J
H
Problem 3
blug   1
N 3 hours ago by atdaotlohbh
Source: Polish Math Olympiad 2025 Finals P3
Positive integer $k$ and $k$ colors are given. We will say that a set of $2k$ points on a plane is $colorful$, if it contains exactly 2 points of each color and if lines connecting every two points of the same color are pairwise distinct. Find, in terms of $k$ the least integer $n\geq 2$ such that: in every set of $nk$ points of a plane, no three of which are collinear, consisting of $n$ points of every color there exists a $colorful$ subset.
1 reply
blug
Yesterday at 11:55 AM
atdaotlohbh
3 hours ago
J
H
Prime number and composite number
mingzhehu   1
N 4 hours ago by mikkymini2
I have one topic on how to identify Prime Number and Composite Number quickly? Maybe the number is more than 100 or 1000.......!
If there are some formula that can be used to verify the number easily, it will be highly appreciated.
Does anybody has any good idea for that?

1 reply
mingzhehu
4 hours ago
mikkymini2
4 hours ago
J
H
Problem 4
blug   2
N 4 hours ago by atdaotlohbh
Source: Polish Math Olympiad 2025 Finals P4
A positive integer $n\geq 2$ and a set $S$ consisting of $2n$ disting positive integers smaller than $n^2$ are given. Prove that there exists a positive integer $r\in \{1, 2, ..., n\}$ that can be written in the form $r=a-b$, for $a, b\in \mathbb{S}$ in at least $3$ different ways.
2 replies
blug
Yesterday at 11:59 AM
atdaotlohbh
4 hours ago
J
H
Integer polynomial
luutrongphuc   0
4 hours ago
For every integer $n \geq 3$, let $S_n$ be the set of all positive integers not exceeding $n$ that are relatively prime to $n$. Consider the polynomial
\[ P_n(x) = \sum_{k \in S_n} x^{k - 1} \]
a) Prove that there exists a positive integer $r_n$ and a polynomial $Q_n(x)$ with integer coefficients such that
\[ P_n(x) = (x^{r_n} + 1) Q_n(x). \]
b)Find all integers $n$ such that $P_n(x)$ is irreducible in $\mathbb{Z}[x]$.
0 replies
luutrongphuc
4 hours ago
0 replies
J
H
Problem 2
blug   2
N 4 hours ago by atdaotlohbh
Source: Polish Math Olympiad 2025 Finals P2
Positive integers $k, m, n ,p $ integers are such that $p=2^{2^n}+1$ is prime and $p\mid 2^k-m$. Prove that there exists a positive integer $l$ such that $p^2\mid 2^l-m$.
2 replies
+1 w
blug
Yesterday at 11:49 AM
atdaotlohbh
4 hours ago
J
H
[$10K+ IN PRIZES] Poolesville Math Tournament (PVMT) 2025
qwerty123456asdfgzxcvb   4
N Today at 4:29 AM by qwerty123456asdfgzxcvb
Hi everyone!

After the resounding success of the first three years of PVMT, the Poolesville High School Math Team is excited to announce the fourth annual Poolesville High School Math Tournament (PVMT)! The PVMT team includes a MOPper and multiple USA(J)MO and AIME qualifiers!

PVMT is open to all 6th-9th graders in the country (including rising 10th graders). Students will compete in teams of up to 4 people, and each participant will take three subject tests as well as the team round. The contest is completely free, and will be held virtually on June 7, 2025, from 10:00 AM to 4:00 PM (EST).

Additionally, thanks to our sponsors, we will be awarding approximately $10K+ worth of prizes (including gift cards, Citadel merch, AoPS coupons, Wolfram licenses) to top teams and individuals. More details regarding the actual prizes will be released as we get closer to the competition date.

Further, newly for this year we might run some interesting mini-events, which we will announce closer to the competition date, such as potentially a puzzle hunt and integration bee!

If you would like to register for the competition, the registration form can be found at https://pvmt.org/register.html.

Additionally, more information about PVMT can be found at https://pvmt.org

If you have any questions not answered in the below FAQ, feel free to ask in this thread or email us at falconsdomath@gmail.com!

We look forward to your participation!

FAQ
4 replies
qwerty123456asdfgzxcvb
Today at 12:23 AM
qwerty123456asdfgzxcvb
Today at 4:29 AM
J
H
AMC 10/AIME Study Forum
PatTheKing806   117
N Today at 3:26 AM by PatTheKing806
[center]

Me (PatTheKing806) and EaZ_Shadow have created a AMC 10/AIME Study Forum! Hopefully, this forum wont die quickly. To signup, do /join or \join.

Click here to join! (or do some pushups) :P

People should join this forum if they are wanting to do well on the AMC 10 next year, trying get into AIME, or loves math!
117 replies
PatTheKing806
Mar 27, 2025
PatTheKing806
Today at 3:26 AM
J
H
9 Which math contest is your favorite?
mdk2013   62
N Today at 1:52 AM by abbominable_sn0wman
links for details on each comp

i think thats all the major ones, comment if you have any more that i forgot to include

upvote if you're like me and you think MATHCOUNTS is obv better!

EDIT: i forgot ARML and JBMO, comment if you like those
62 replies
mdk2013
Mar 30, 2025
abbominable_sn0wman
Today at 1:52 AM
J
H
USA(J)MO qualification
mathkidAP   13
N Today at 1:47 AM by PatTheKing806
Hello. I am an 8th grade student who wants to make jmo or usamo. How much practice do i need for this? i have a 63 on amc 10b and i mock roughly 90-100s on most amc 10s.
13 replies
mathkidAP
Yesterday at 2:03 AM
PatTheKing806
Today at 1:47 AM
J
H
J
H
USA(J)MO Index
15Pandabears   9
N Feb 2, 2015 by MSTang
If you get a score of A on the AMC 10A and a score of B on the AMC 10B, where A>B>120, is score A used for your USA(J)MO index?
9 replies
15Pandabears
Jan 27, 2015
MSTang
Feb 2, 2015
J
USA(J)MO Index
G H J
Reveal topic tags
AMC
USA(J)MO
USAJMO
AIME
USAMO
AMC 10
L
G H BBookmark kLocked kLocked NReply
The post below has been deleted. Click to close.
This post has been deleted. Click here to see post.
15Pandabears
443 posts
15Pandabears
#1 h  Jan 27, 2015, 11:23 PM • 2 Y
Y by Adventure10, Mango247
If you get a score of A on the AMC 10A and a score of B on the AMC 10B, where A>B>120, is score A used for your USA(J)MO index?
Z K Y
The post below has been deleted. Click to close.
This post has been deleted. Click here to see post.
Not_a_Username
1215 posts
Not_a_Username
#2 h  Jan 27, 2015, 11:25 PM • 2 Y
Y by Adventure10, Mango247
The higher score is used for your USAJMO index.
Z K Y
The post below has been deleted. Click to close.
This post has been deleted. Click here to see post.
BOGTRO
5818 posts
BOGTRO
#3 h  Jan 27, 2015, 11:26 PM • 2 Y
Y by Adventure10, Mango247
Yes. The AMC score used for your USA(J)MO index is $\text{max}(\text{AIME-qualifying A score}, \text{AIME-qualifying B score})$. As being above 120 automatically makes a score AIME-qualifying, the larger one would be used.
Z K Y
The post below has been deleted. Click to close.
This post has been deleted. Click here to see post.
MSTang
6012 posts
MSTang
#4 h  Jan 29, 2015, 1:13 AM • 10 Y
Y by 15Pandabears, droid347, Bob_Smith, spartan168, hwl0304, CML, Adventure10, Mango247, and 2 other users
I made a flow chart about this if you have any other questions :)

@BOGTRO: Mistake fixed!
Attachments:
This post has been edited 1 time. Last edited by MSTang, Feb 2, 2015, 3:39 PM
Z K Y
The post below has been deleted. Click to close.
This post has been deleted. Click here to see post.
BOGTRO
5818 posts
BOGTRO
#5 h  Jan 29, 2015, 8:58 PM • 8 Y
Y by niraekjs, zmyshatlp, droid347, MSTang, Adventure10, Mango247, and 2 other users
Unfortunately the above is somewhat misleading. The box containing "Congrats! Which AMC 10/12 test(s) did you take?" should be replaced by "Congrats! Which AMC 10/12 test(s) did you qualify for AIME on?". In particular, if you get something like a 132 on the AMC 10A and a 72 on the AMC 12B (assuming a 72 on the AMC 12B does not make AIME, a very safe assumption), you cannot make USAMO regardless of your AIME score. Similarly, if you get something like a 117 on the AMC 12 and a 96 on the AMC 10, you cannot make USAJMO regardless of your AIME score.
Z K Y
The post below has been deleted. Click to close.
This post has been deleted. Click here to see post.
bestwillcui1
2735 posts
bestwillcui1
#6 h  Jan 29, 2015, 11:15 PM • 3 Y
Y by droid347, Adventure10, Mango247
Wait last year xantho got some score on the AMC 12 that did not qualify for AIME but qualified through his 10 score and proceeded to score a 13 on AIME, and somehow they told him to take AMO.
Z K Y
The post below has been deleted. Click to close.
This post has been deleted. Click here to see post.
CPU-RN
4 posts
CPU-RN
#7 h  Feb 2, 2015, 5:38 AM • 1 Y
Y by Adventure10
That's fairly hard to believe but maybe his 10(AIME score)+his non-qualifying AMC 12 score was a USAMO qualifying index?
Z K Y
The post below has been deleted. Click to close.
This post has been deleted. Click here to see post.
bestwillcui1
2735 posts
bestwillcui1
#8 h  Feb 2, 2015, 9:43 AM • 2 Y
Y by Adventure10, Mango247
Yes that was the case even though he did not theoretically make the AIME with his AMC 12 score.
Z K Y
The post below has been deleted. Click to close.
This post has been deleted. Click here to see post.
xantho
767 posts
xantho
#9 h  Feb 2, 2015, 1:05 PM • 3 Y
Y by mathmind123, Adventure10, Mango247
bestwillcui1 wrote:
Wait last year xantho got some score on the AMC 12 that did not qualify for AIME but qualified through his 10 score and proceeded to score a 13 on AIME, and somehow they told him to take AMO.
As the user who is being spoken of here, I can indeed confirm my index of 84+13(10)=214 qualified for the USAMO index. I too thought that I couldn't make AMO, since I didn't qualify through the 12, and made it because of my 10a score. Apparently, this is not the case. Although a person who does so has to be extraordinarily inconsistent.. Sigh..
Z K Y
The post below has been deleted. Click to close.
This post has been deleted. Click here to see post.
MSTang
6012 posts
MSTang
#10 h  Feb 2, 2015, 3:20 PM • 1 Y
Y by Adventure10
BOGTRO wrote:
Unfortunately the above is somewhat misleading. The box containing "Congrats! Which AMC 10/12 test(s) did you take?" should be replaced by "Congrats! Which AMC 10/12 test(s) did you qualify for AIME on?". In particular, if you get something like a 132 on the AMC 10A and a 72 on the AMC 12B (assuming a 72 on the AMC 12B does not make AIME, a very safe assumption), you cannot make USAMO regardless of your AIME score. Similarly, if you get something like a 117 on the AMC 12 and a 96 on the AMC 10, you cannot make USAJMO regardless of your AIME score.

Oh, right. Thanks, I'll fix it :blush:
Z K Y
N Quick Reply
G
H
=
a