competition-math

[near hill]

Just sayin.

[hushed linden]

Anyone here finished with amc10?

[near hill]

Someone just above you did, so the the answer is "yes". Please mind the embargo, though.

[tiny eagle]

Not discussing the test but I’m just saying I sillied a whole lot like I’m actually going to get like a 81

[ruby quest]

nah bro ur totally cooked

[blazing comet]

ok bro

really came to join the party

who does ts guy think he is

[ruby quest]

js saying "bronze is lowk ez"

[blazing comet]

ye

it is

[ruby egret]

Anyone take the amc 10 yet

[ripe slate]

ye

[reef condor]

Can you lock the channel?

[near hill]

That would be an overreaction, I feel. There might still be someone who want to talk about problems other than this year's AMC A ones.

[surreal willow]

Omg I did sooo bad

I think

Aaaaaahhhhhh

[hexed lion]

omg

what

was that

[pallid tundra]

oh right i forgot the AMCs are in november now

its been 4 years since my last one lmao

[bronze shoal]

I’m so cooked 💀

Prob not going to Qual unless 10b is easier

[willow dragon]

12A was annoying.

There was this one question where you had to do math.

Very shocking, I know.

But I couldn't do it.

[surreal willow]

Real

[surreal willow]

[slow mason]

was it hard comapred to previous years

[surreal willow]

Yea ig so

[sly pawn]

Dude this years AMC 12 was really hard

[sly pawn]

12 was a lot harder

[slow mason]

wait what abt 10

im taking 10

[hushed forge]

amc was so light

10

[slow mason]

really?

[surreal willow]

The 10 was not light

[slow mason]

everyone else said its hard

[tiny eagle]

Unless you’re a JMO qualler it was not light bro 😭

[surreal willow]

Actually it was ok but I realized that after I my first past and wasted 40 minutes of my time

[surreal willow]

You took the ten too?

[hushed forge]

I got 25/25

ez bro

[slow mason]

...

[hushed forge]

im dum btw

[tiny eagle]

Yeah

[surreal willow]

Noice

[hushed forge]

im 8th in my school…

[tiny eagle]

I did rly bad I think

[hushed forge]

what yall get

[surreal willow]

How do you know ur score?

[surreal willow]

Idk for me

[hushed forge]

compared with number one in the world, he goes to our school

[surreal willow]

Bro what u mean number 1

What school you be going to?

[hushed forge]

american heritage

frloida

[slow mason]

how many did u guys do

problems

[hushed forge]

25

1 hour 15 min

[surreal willow]

Bros a pay to win

[surreal willow]

17

[slow mason]

do u mock around 17 asw on past papers? or more

cuz i need to have mental preparation

[hushed forge]

i go free

my mom works

wait everyone say what they got

[surreal willow]

I do 120 untimed but be barely making aime timed

[slow mason]

and u got 17?

[surreal willow]

Yea

[slow mason]

thats good!

[surreal willow]

On timed

[slow mason]

yeah

good job

[surreal willow]

It’s not

[hushed forge]

17? Dude thats aime

[slow mason]

but everyone said its hard

so the cutoff will be lower

[hushed forge]

it was deadly

[surreal willow]

If I get them correct 💀

[hushed forge]

answered 17?

oh

[surreal willow]

Yea

I think their right at least

Hopefully

[surreal willow]

Nah that’s crazy

[hushed forge]

tell me

[surreal willow]

One of the best private schools for free???

[hushed forge]

i mean my mom works there so the 40k tution free

ye

[surreal willow]

Dudeeee

Lucky

[hushed forge]

ik

tell em ur hardest question

[surreal willow]

Also ur tuition is 40k???

[surreal willow]

?

[hushed forge]

Yea, most people have parent shtat work

[surreal willow]

Oh ok

That makes sense

[hushed forge]

tell em the hardest question for u

[surreal willow]

Last one

The prob square one

Idk

[hushed forge]

The inf square?

[surreal willow]

It maybe doable but I haven’t read the question fully

[surreal willow]

The square one with probability yea

[hushed forge]

What u put

[surreal willow]

I didn’t do it

I only answered 17

[hushed forge]

3/4 i think

[surreal willow]

XD

[hushed forge]

alr

[surreal willow]

Wait

R u Asian?

[hushed forge]

idk

[surreal willow]

Bro wdym

[hushed forge]

Like middle east

[surreal willow]

Ohhhhh

[hushed forge]

No, im not bioengineered

[surreal willow]

Ok

[surreal willow]

Noice

[hushed forge]

i suck, i got lucky

[surreal willow]

Wdym?

U got 25/25

That’s insane

[hushed forge]

i think at least

[surreal willow]

Well you answered all of em

[hushed forge]

imma be fr i think i got like a 20

yea

[surreal willow]

Bro what

[hushed forge]

but some were educated

[surreal willow]

Ok yea

That’s still good tho

[hushed forge]

ye, gtg

[surreal willow]

Alright

Bye

[hushed forge]

Bye

[sullen zenith]

Hi guys

How was the test?

Was it hard, or what?

[surreal willow]

It was p hard at first

Gl on ur test

Guessing you haven’t took it yet

[sullen zenith]

Nope

IM SO COOKED

Do you think the cutoff will be lower than last year's A?

[bronze shoal]

amc 10 was among the harder ones but i wouldn't say the hardest

[slow mason]

oh alright

thank u

[sullen zenith]

thank u GOOD LUCK!!!!!!!

[hushed forge]

It is

def

at least for the ones i ahev etaken

yea and most of the ones i thoguth i got right were wrong

i got a 17, dang it

[buoyant stirrup]

Im gonna get like a 6 or 1

[sly pawn]

bro the amc12 was hard

[sly pawn]

definitely

[sly pawn]

on the 10 or 12?

[soft vigil]

Chat

We cannot be talking about this test rn

[sly pawn]

Yes we can

Just not about the questions specifically

I think you are allowed to say how hard it was or how well you think you did atleast

[reef condor]

No, this is specifically prohibited

[sly pawn]

Oh

[reef condor]

@near hill

[sly pawn]

You can't say that the test was hard?

[reef condor]

No.

[sly pawn]

Oh that one is kind of wild

[reef condor]

Bro it cannot be that deep. Just wait until 8am tomorrow.

(EST)

[near hill]

Please don't discuss problems before it's allowed,

[sly pawn]

I'm pretty sure it's just problems

[reef condor]

Bro

[sly pawn]

General how you did should be fine

[reef condor]

If you say it’s easy then people will base their test strategy off of that

Same for hard

[sly pawn]

"Test strategy" lol

[vocal nymph]

Just please don’t talk about it!

[reef condor]

Also if you are a combo main (obviously this requires some kinda notoriety) for example, then people might know about how combo is

[sly pawn]

Idk how that would even work but ok

[reef condor]

?

[sly pawn]

combo main?

[sly pawn]

You usually just take the test

[reef condor]

Difficulty has a huge impact on testing strategy. Maybe not as much on amc but still important.

Like on oly if yk that 3/6 is not much harder than 2/5 it’s a very important piece of information

[sly pawn]

Yeah that's discussing specific problems

Saying the test was hard doesn't really communicate much

[reef condor]

And either way, all you have to do is wait until 8am est tomorrow.

[sly pawn]

I just think you're making a mound out of a mole hill

[reef condor]

Then just mention that in a gc with people who have already taken it.

[sly pawn]

I think it is fine personally, you are open to disagree though

[near hill]

Another time please ping @Moderators as a group, though. I'm almost asleep here.

[sly pawn]

Those are AoPS's specific rules

[reef condor]

And I think the aops people know what they are doing.

[sly pawn]

Yeah but the MAA just says don't discuss the problems

Which makes sense to me

[reef condor]

I mean idc if you think it’s fine to discuss, as long as you don’t discuss.

[near hill]

We respect the rules set by MAA too.

[sly pawn]

Yes we do

[sly pawn]

Yeah so we agree that the problems are what's not allowed to discuss

[deep walrus]

We can talk abt the amc 10 a tmrw at 6 AM CST right?

[scenic cape]

What would the aime cutoff be

12A

[surreal willow]

Prob around 80s

[marble orbit]

bro

during the fucking test

deadass wanted to kill ma self

[tranquil dagger]

listen to my boy me duh and sleep it off

[wary sage]

listen to my boy me duh and sleep it off

[cloud dome]

listen to my boy me duh and sleep it off

[marble orbit]

And I be yellin' out, "Gang, gang"
Do you gang bang?
I be outside with my gang, gang

[scenic cape]

High 70s..?

Like 75

[wanton holly]

guys

[sacred shell]

woahh that low

Compared to last year I mean

[scenic cape]

Last yr was 75

I was hoping for this yr too..

Fcked up 24 i made the dumbest mistake

[sacred shell]

Ohh right mb

[scenic cape]

Do u think this yr was just as hard as last yrs or

[sacred shell]

Still gotta give the test 😭

It’s 5 hours from now for me

[slow mason]

amc 10 is 5 hours from now for me

what do u guys think the amc 10 cutoff is

for 10a

[sacred shell]

India?

[slow mason]

no...

[sacred shell]

Ohkayy

[slow mason]

r the cutoffs gonna be low 90s

cuz apparently its rly hard and worse than 2024

[hushed linden]

Bro I did bad

Rip

[slow mason]

im scared

ppl r saying the first 10 problems are already really hard

[marble orbit]

they were

what country r u

[soft vigil]

https://tenor.com/view/speed-ishowspeed-smh-laughing-laugh-gif-16005642344163940773

[foggy sapphire]

wait people in different countries take the American math competition?

[solid sluice]

yeah

[fervent raven]

what

[novel dew]

Hopefully

[jagged torrent]

What do y’all think dhr will be > or < 120

[ornate saffron]

were they? i forgor everything </3

[civic marsh]

@mwakazyy yeah

[buoyant stirrup]

Imma get a 0/67

[tiny eagle]

The 10B better be easier I don’t want to go through another 10A bruh

[sacred shell]

amc 12 got me cooked

And deep fried 😭😭

how many are you guys getting?!

[fathom cradle]

3, probably

[sullen zenith]

Hey guys

Can we talk about test now

[solid sluice]

In 5 minutes

[sullen zenith]

Lol

[solid sluice]

We can now

[sullen zenith]

YESSSSSSSSSS

THAT TEST WAS SOOO FREEAKKKING HARDDD

i answered 21

[solid sluice]

10 or 12

[sullen zenith]

I think i got like 2 wrong

10

[solid sluice]

that’s like good

[sullen zenith]

do u think 120 is making honor roll?

[reef condor]

For 10 probably

[sullen zenith]

https://www.youtube.com/watch?v=dAeyV60Hu5c

Wait guys, what do you think cutoff will be?

[tranquil dagger]

thank you me duh

[random lichen]

DHR cutoffs AMC 12?

[sullen zenith]

Do you think cutoffs will be lower than last year?

[random lichen]

where can i get the answer key

[near hill]

Hmm, did the problem set leak?

[tranquil dagger]

^

[random lichen]

lowk the geometry was so chill

[random lichen]

thats 10a right?

[tranquil dagger]

oh im asking about 12

[random lichen]

same

i want 12 too

[random lichen]

how was it for you?

[tranquil dagger]

did well for what i was expecting lol

[random lichen]

good job 🙂

[sullen zenith]

Anybody here did 10?

[random lichen]

why is AoPS still locked lMAOAO

bro im so impatient im gonna

[solid sluice]

+1

[stuck tartan]

prolly like 136.5 or smthg honestly

[tranquil dagger]

hopefully leakers didnt inflate it too much

[stuck tartan]

fr

[random lichen]

HOW HARD WAS IT

[stuck tartan]

wdym

[random lichen]

NO DONT TELL ME IT GOT LEAKED FML

[random lichen]

was it hard?

[stuck tartan]

did u take the 10?

[random lichen]

12

[stuck tartan]

the 12 wasn't too bad honestly

[tranquil dagger]

i mean they get leaked every year

[random lichen]

thats what im saying

[stuck tartan]

like after the first 10

[random lichen]

it wasnt too bad

[stuck tartan]

most of it was p chill

[random lichen]

yes

i hope its <132

[sullen zenith]

what about for amc 10

[random lichen]

if i get everything i solved correctly 132 for me

but i know i didnt

[sullen zenith]

Guys, what do you think cutoff for the 10A will be?

[tiny eagle]

Like a 96 prolly

Cutoff

[tranquil dagger]

what do u guys think 12a hr is

[wet zinc]

Hey guys, what do you discuss in here? Im new

[sleek ivy]

what will the amc12a cutoff be

you guys think

[solid sluice]

below 80?

prolly not right

[tranquil dagger]

i thought minimum was 80

lol

[tranquil dagger]

^

[sleek ivy]

hopefully

[solid sluice]

2024-2025 cutoff was 76.6

[tranquil dagger]

oh lmao

idk this year felt easier to me

maybe bc i actually prepped

[sleek ivy]

hopefully it was only easy for you

[cunning yew]

.

[scenic cape]

Is 76 like

Fine

For qualitying

[sleek ivy]

fingers crossed

[scenic cape]

12a

[foggy python]

[
\sum_{k=1}^{n} k^{p}
= \frac{1}{p+1} \sum_{j=0}^{p} (-1)^{j}
\binom{p+1}{j}
B_{j} , n^{,p+1-j}
]

[gilded halo]

aayu?

[reef condor]

Bruh

[trim bramble]

sillied 4 😭

[snow thistle]

it wasn’t that hard but the first 10 were harder than normal

and the questions were just weird

like q9 everyone ik did it with calculus

and everyone else who got it right fakesolved and guessed all the roots were real

aime will prob be similar to last years 10a

dhr idk i think i sillied out of dhr

i put the # of true instead of # of false for the logic question

[tranquil dagger]

Oof

[deep walrus]

Would 91.5 be qualifying for amc 10 a?

[tranquil dagger]

Solve for OA?

I just had a quadratic

[deep walrus]

I had a cubic

[reef condor]

Bruh

Silly siltant, they’re talking about the 10

[tranquil dagger]

So not solve for OA

[reef condor]

…no

[tranquil dagger]

Delete ts

[reef condor]

I edited it

[tranquil dagger]

Thank you me duh

[foggy sapphire]

Does anyone know when exactly scores and aime qualifications come out?

[deep walrus]

I was also talking abt the 10 😭

[reef condor]

Yeah I meant to reply to siltant

[half niche]

do y'all think a 90 will qualify? (12a)

[stark ingot]

does a 130 qualify for aime, its my first time taking amc 12a and im not familiar with it

[stuck tartan]

Holy ragebait

130 ain’t even possible

[stark ingot]

Wdym

[random lichen]

yes it does, if you're lucky you might get top 1% (DHR) as well

[stark ingot]

Whats DHR

[random lichen]

but confirmed AIME qual and HR (top 5%)

[random lichen]

distinguished honor roll its like a certificate given to the top 1% of test takers

[stark ingot]

Does it do anything good

[random lichen]

and it looks pretty nice on your college apps and record

[stark ingot]

Oh yay

[random lichen]

yes it tells people you're pretty good at the AMC lmao

[random lichen]

congrats!

[covert saffron]

Do you guys think a 138 will get dhr for 12a?

i skipped 25

idk if they'll void it

[night whale]

Hi all
I want to study more on competition math and especially topics concerning number theory and I want to know where to begin

thanks

[fringe basalt]

did anyone do the amc10 challenge?

[deep walrus]

What’s the difference between the normal test and the challenge

[fringe basalt]

i think its the same thing

i did it online

[deep walrus]

Oh

[night whale]

well I studied a little bit beforehand and didn't do exceptionally well

it was with a bunch of people from my school though

as in a lot of people did it

[covert saffron]

?

[reef condor]

depends on 25 void treatment

oh

is that with 25 void

then

idk its borderline

if its without the 25 ponits then 100%

[coral coyote]

If i recieved a 117 on the 10a would that qualify for aime

i heard this year's was difficult

at least more difficult than the preceding year

[soft vigil]

if i recieved 1 million dollars would i be able to buy a lollipop

[sullen zenith]

Hey guys, I ran a program that, based off previous years' tests, can predict AIME cutoff score, HR score, and DHR score for the 10A.
AIME cutoff: 94
HR: 105
DHR: 120
It also analyzed the problems from the A, and predicted some topics that will be on the B (usually, topics NOT assessed on the A will be on the B)

1. 3D Geometry
2. Number theory bases
3. Functions (Functional equations)
4. Optimization
5. LCM/GCD applications
6. Diophantine equations
7. Transformational Geometry
8. Absolute Value Equations/Graphing
9. Systems of Equations
10. Statistics
    So, mainly Algebra + Number Theory

PLEASE TAKE WITH A GRAIN OF SALT!!!!

[snow thistle]

if i fell 10000 meters from the sky would i die

[snow thistle]

dhr 120 is crazy

has to be at least like high 120

[covert saffron]

yeah i think so

i got 22 problems right

skipped 25

and got 2 wrong

[tranquil dagger]

try for 12 too

[sullen zenith]

Gotta go to sleep rn, but I'll post tmrw morning

[zealous aurora]

Bernoulli's Sum?

[foggy sapphire]

Do you guys think this year’s amc 12a was easier or harder than last years amc 12a

[full ravine]

is 105 hr for 12a

[sick gale]

what do yall think jmo cutoff gonna be?

[ivory ember]

I did the 12a from this year today and the 12a from last year as a senior - this years 12a felt a lot more direct (a decent amount of bookwork even in the later questions like 24 and 19)

granted I had some not so ideal circumstances before the 12a I took as a senior

so I was barely mentally there (to the point where I spent 5 minutes on p1 rip)

[foggy sapphire]

Oh that is true last year had a lot more abstract thinking required or just knowing how to do that problem through practice since they aren’t as common

If you take amc in senior year will scores release early enough for them to be on college apps

[ivory ember]

I got mine the day after

so yeah

aime scores came out a little after

I just sent a follow up email

put a comment in additional info about my score crash

and that was it

nothing too crazy

[scenic cape]

What would aime cutoff be for 12a

[vital sleet]

for those unfamiliar with international olympiad stuff, can you talk abit about what AIME cutoff, HR, DHR mean?

i am curios what those stats mean

[sullen zenith]

Yeah sure! So the AIME (American Invitational Math Exam) cutoff is the score you need to get to qualify for AIME (about top 6-7% of test takers qualify). HR stands for Honor Roll, and is about top 5%. DHR stands for Distinguisehd Honor Roll, and is about top 1%. Hope this helps!

[sleek ivy]

what about for the 12a?

[tranquil galleon]

I assume this channel is only for pre university math competitions is there a channel for university math competitions

[vernal axle]

||Draw the heights h1, h2 from P in triangles PBD and PAC. Then h1=90/d, h2=56/d and h1^2+h2^2=(d/2)^2, where d is the diameter.||

[sullen zenith]

So for the 12A, I ran a similar program, so here are the results: AIME cutoff: 82, Honor roll: 100, DHR: 127.5. Topics for the 12B: 3D Geo, Functional Equation, Diophantine Equation, Law of sin/cos, trig identites/equations, transformations, AM-GM/Cauchy, Roots of Unity

[tranquil dagger]

looks like i mightve missed out on honor roll by 1 question

sucks bc there were def some questions (like 24) that i couldve done but assumed i wouldnt be able to solve so i didnt try

actually idk what theyre doing for 25

[sleek ravine]

do you have a parachute?

how fast are you falling?

[supple harness]

how do u calculate it?

[sleek ravine]

with a grain of salt

[supple harness]

lol. he vibed it

[supple harness]

did the chinese leak the amc12a

[ivory ember]

In the future, please show what you've done so far when asking for help. (It gives us more context and saves our time from explainng things unnecessarily). \ \

The number of handshakes follows a binomial distribution. So,
$$p_n &= P(X=0)+P(X=1)$$

[gilded halo]

Civil Service Pigeon
Compile Error! Click the reaction for more information.
(You may edit your message to recompile.)

[ivory ember]

you can find each of these terms using the binomial probability formula

from here, you can either ||series expand|| or ||use the limit definition of e||

[frozen herald]

Thank you. I shall, Mr. wise Pigeon..

[frozen herald]

can I share my results, on here?

[ivory ember]

yes ofc

we encourage it in fact

[soft vigil]

Does anyone else see it

[reef condor]

.

[night whale]

did you guys take the AMC 10A?

[pearl nova]

https://tenor.com/view/bee-movie-layton-t-montgomery-monty-montgomery-67-6-7-gif-9758470031245276788

[scenic cape]

82.5 like including that everyone got 6 marks for 25?

[ivory ember]

<@&268886789983436800> User ID: 1422477764379938828

[blazing osprey]

i'm so SLOW aaa

[vocal storm]

96 (100.5 with void) should qualify for 12a right? unless maa does maa shenanigans

hr is probably not going to happen though but one can hope

[vocal storm]

scores are already out, talk to your CM

they're "unofficial" scores though

according to the CM handbook official scores should be out in a few weeks, you can see your scores in edvistas then

AIME cutoffs have historically come out 1 month after the B test date

[sullen zenith]

Not including that everyone got 6 marks for 25

[tranquil dagger]

same score lol

yea

[sullen zenith]

Guys, what are some good math competitions for high schoolers besides AMC 10/12, AIME and USAJMO

[ornate blade]

UKMT, AMC (the Australian one)

those are a level easier than AMC for your grade level

[surreal radish]

Hi

[fast fulcrum]

iranian geometry olympiad

[sullen zenith]

Am I allowed to take UKMT as an American citizen?

[ornate blade]

yes

just got to find a school that even offers it near you

I haven't heard of any American people ever taking it, though again, I may not have heard enough

it's actually pretty popular in Asia

[ornate blade]

cause you can't take it online; same for the Australian one

[sullen zenith]

Oh ok I see. So any other good competitions in America? Like I know HMMT, and SMT and AMC series, but that's all i know 🙁

[ornate blade]

nah

[stoic tinsel]

I mean BMTs ok but ya there isn’t much

[stuck tartan]

BMT happening en

Rn

[stoic tinsel]

Ya

I’m in it

Waiting for indivs

[vocal storm]

why do you need another contest

😭

[night whale]

how did you all approach this problem?

[soft vigil]

look at the number of terms after each 1 up until the next 1

the first 1 has a total of 2 terms, next has 4 terms, and so on

[zealous aurora]

is anyone down to prepare/talk about upcoming putnam test?

[neon basin]

Speed my amc score is kinda homeless :(

[manic tulip]

I made a formula for where the number 1 appears

Like it appears in the 1st term, 3rd, 7th, 13th so on

[night whale]

mhm, thanks

this was one of those where I thought I could do but couldn't solve for a long time

although it is my first amc

[sullen zenith]

For this problem, the key thing is to utilize the formula for the sum of the nth even numbers (n)(n+1) in some way

[tiny eagle]

I did it by seeing the pattern as follows:
1
212
32123
etc. Then the last number of the nth row is n, and each row has an odd amount of elements. The sum of consecutive odd numbers is n^2. (After 2nd row there have been 4 numbers, after the third there have been 9 numbers.) Then after the 45th row there have been 2025 numbers, ending with 45.

[night whale]

I never thought of it that way
I thought it as 12|1232|123432|12345432|...

the nth mountain has 2n the length is what I figured, though I can't corroborate that this is correct

[tiny eagle]

Oh yeah I tried that stuff at first but I saw the 1|212|32123|and it became so much faster

[tiny eagle]

So I’m guessing that you did something similar with the sum of the first n even numbers?

[night whale]

yes

I just tried to find the first usable sequence that I thought of lol

not particularly bright if you couldn't tell

[tiny eagle]

Bro I bet ur brighter than me I sold tf out of the 10a

As long as u solve it, it works imo

[whole notch]

lwk i js skipped it

[whole notch]

woah this is so smart

[night whale]

thing is I wasn't able to solve it

again it is my first amc and I didn't study nearly enough

[tiny eagle]

Ty

[tiny eagle]

Oh lol it’s ok if it’s ur first year ur fine what grade are you in?

[whole notch]

omg same 😭

[night whale]

I'm in 10th

[whole notch]

i spent 20 minutes on like the first 3 questions cs my mind was not having ts

[night whale]

what score did you guys get?
don't feel ashamed to say because I got a 24

out of 150

[whole notch]

idk what i got yet

[tiny eagle]

U still got 10B as well as 12 so just study and u should be fine

[night whale]

I think your proctor will tell you

[tiny eagle]

I got 91.5 😔

[whole notch]

i dont have my proctor as a teacher

[whole notch]

woww

[night whale]

I didn't sign up for the 10B

[whole notch]

i prob got a 63-69

[night whale]

I had quite an important event the day my proctor ran it

[night whale]

isn't that a passing grade?

[whole notch]

cutoff is prob a 94

[night whale]

ohhhhhhhh in that case that's so close

I guess he could rest easy knowing he got 4 times the score I did

[whole notch]

its ok

just study

summer is gna be a great time to study!

[night whale]

I'm not sure if there are any people here who got an exceptional score but if you guys have problems that you want to study then I can hop in as well

[night whale]

indeed

[soft vigil]

by the way

a completely blank test gives you 37.5 points, for 1.5 points per blank

so if youre not too sure about a problem leave it blank

[night whale]

yes I know
I just did not know quite how many questions I got wrong

[dire flare]

i think its 45 because each set of the pattern 1 212 32123 etc have increasing odd number of terms so you check the number of terms till the sum of consecutive odd numbers reaches 2025 and you get 45 so there are 45 sets of the same pattern and it must be the last term of the set because the AP satifsfies that there are 45 terms perfectly that give 2025 so it is 45 .

the question would proably become much harder if they gave a random non perfect square number other than like 2025

[glossy tinsel]

is there a place i could learn basic counting arguments from?

[vital sleet]

maybe Aops has some resources on this

in one of their books i remember having counting problems here and there

[sleek ivy]

introduction to counting and probability by aops

[deep walrus]

Me too 😢

[wanton merlin]

Find for the closest square maybe

[dire flare]

yeah exactly

but it gets difficult for really large numbers

[hushed forge]

45, so light

some people put 44, but u gotta add one

[tiny eagle]

Redemption on the B trust

[true grotto]

lezgooo AMC10A 160 in the bag!!

[copper nacelle]

what is AMC

[deep walrus]

Yes bro 👏

[night whale]

Air Mobility Command

[iron terrace]

bruh

[novel karma]

Nah it was in 1-46 so 45 term is 45 no need to add anything

[stable pewter]

yes WE are locked in for the amc 10b 🙏

[tiny eagle]

Yessir

[small loom]

Same 😭

Completely panicked during the exam

[surreal willow]

So it wasn't just me 😭 😭 😭

[solid sluice]

same but 12

[small loom]

I was mocking 120-130+ and then I blanked

[little wigeon]

how are your guyses scores out so fast dang

praying for a 96 bro i forgot what i put on one of the uestions

0 sillies but i may have bubbled the wrong answer to a problem

[surreal willow]

Same 😭

[frank valve]

bro ts year's amc was tuff

[tranquil dagger]

just email ur proctor

mine said whatevers happening with question 25 isnt final yet so as it stands i have a 96

[stable pewter]

damn id kill to get a 96

im prob gonna get like somewhere between 60-80 points 😭

[craggy wraith]

this is how i did it during the test: i found the pattern 1, 2 | 1, 2, 3, 2 | 1, 2, 3, 4, 3, 2 | 1, 2, 3, 4, 5, 4, 3, 2|..., and I noticed that the number of terms in the blocks follow the pattern 2, 4, 6, 8... so after n blocks the total number of terms will be 2(1+2+3+4+...n) which can also be expressed as 2(n(n+1)/2) -> n(n+1). ik 2025 is 45^2 so i plugged 44 as n in and 44(45) = 1980. so we are now in the 45th block and there are 2025-1980 = 45 terms remaining. in the 45th block it will increase by 1 to 46 then go down, so we know for the fact that the 45th term in the 45th block is 45. therefore, 45 is the final answer.

[night mica]

IS ANYONE DOING AMC 10B/12B

AND IS LIVING IN THE US

[prime patio]

What level of math is this? In what grade is it tackled?

[pure laurel]

you can look at the test papers here https://artofproblemsolving.com/wiki/index.php?title=AMC_12_Problems_and_Solutions

[frosty sonnet]

I mean I found the pattern that for each square term, (e.g. 1th, 4th, 9th) it's root is that number. (e.g 1st term is 1, 4th term is 2 and 9th term is 3) so the root of 2025 is 45,which is your answer ig

Very sneaky

[random lichen]

hey would someone like to join our BMT online team?

[reef condor]

Like 3rd

[prime patio]

Is it tackled in the later years of high school?

[sullen zenith]

Yes, I am

[copper nacelle]

this channel is too helpful sometimes

[sullen zenith]

I really need help on this!

[vernal axle]

You can use Menelaus on the triangle CBP and the line MQ. Or, draw a line through P parallel to BC.

[tiny eagle]

What is BMT?

[stable pewter]

yes

[stable pewter]

berkeley math tournament i think

it was lowk pretty fun but i bombed it

[tiny eagle]

Cool

[random lichen]

berkley math tournament

[surreal willow]

Yea like 150000 ppl are

XD

[reef condor]

3rd grade

[prime patio]

Damn

Thanks

[unkempt quest]

bro i saw the pattern and messed up and put 44...... 😭

[tiny eagle]

Im interested, but I might not be good enough for ur team tho

[winter elm]

am i the only one who thoguht that last year's 10 b was not easy 😢

like i did worse on it than A and the cutoff was so high

[frank valve]

you can take both the A and B versions in the same year?

oh shit it's not over for me I can take the 12b on thursday

[snow thistle]

up to preference

last year the questions were all weird

[winter elm]

😍 real

[snow thistle]

i did better on 10a than 10b last year actually

lowkey gor fried on 10b 😭

[frank valve]

god I hope I do better on the 12b this year

[snow thistle]

u got this

[frank valve]

holy fuck I got cooked on the 12a

[winter elm]

yeahhhh B was annoying ebcause some of the later questions were easier than like the mid ones

[frank valve]

lowkey I think I read the true/false statements question wrong and put 3

[snow thistle]

pov this year 10a p22 vs p4

[snow thistle]

same lmao

i got fried on 10a i sillied way too many

i’m not gonna dhr

[frank valve]

why would they ask for how many statements are false that's so goofy

[snow thistle]

i’m not even gonna ask my coach for my score ik it’s bad 😭

cuz there’s 2 where i forget where i put

maybe if i put it right i made dhr idk though

[winter elm]

lol prayin for ya

[snow thistle]

tyty

[winter elm]

my prcotor is gonna take like a month to get results out

[snow thistle]

i gotta do better on 10b anyways though lmao

[snow thistle]

oh rip

usually i remember my answers after taking it

[winter elm]

yassss

[snow thistle]

but this time my brain was so clouded during the test i genuinely forgot

[winter elm]

hahahaha real i only remembered the harder ones

[frank valve]

near the end of the test I just had my head in my hands the whole time 💀💀💀

[steel parcel]

Gng I got cooked on AMC10A

114 bro i sold

[rugged solstice]

hiiii bro we are the same

we both do math python and c++ thats so cool

[buoyant obsidian]

i got 36.5 lowk

[wary sage]

https://tenor.com/view/buzz-lightyear-gif-21327280

[hushed forge]

cutoff bumped to 105, ☠️

[hushed forge]

ragebaiting, i see…

[supple harness]

mine came out the next day

[covert saffron]

bruh

do u guys think a 133.5 is good enough for DHR for 12a 🥀

[stuck tartan]

did the exact same thing

[stuck tartan]

borderline honestly the cutoff might be like 135-136.5

[covert saffron]

bruh rip

i'd lwk get pissed if its like 135-136.5

😭

a year of grinding for only hr

🥀

[stuck tartan]

i mena last year 12a was like 133.5 but this year's 12a was easier so idk

[covert saffron]

yeah ig

the first 10 were harder

but 11-20 was easy

21-25 was around the same imo

[covert saffron]

i also thought last years scores were inflated bc of cheating

[stuck tartan]

isn't there cheating every year

[stuck tartan]

p24 🥀 💔

[covert saffron]

naw but last year was like severe

this year seems less

[covert saffron]

🥀

[frank valve]

p24 on 12a was lowkey easy but I didn't even look at it until there were like 10 seconds left

and p22 only requires some very simple logic to solve

[pure laurel]

it was more severe in 23

[covert saffron]

rip

[stuck tartan]

yeah i was saying this year's final 5 was a good amount easiser than last year's final 5 by how p24 was insanely easy

[frank valve]

p25 🥀

[stuck tartan]

me when voided

[frank valve]

how does a mistake like that get through into the official test I wonder

[jade widget]

p25 is wrong?

[frank valve]

the correct answer wasn't one of the options

aops ^^^

[jade widget]

wow

i chose 13

so will point be taken off

[frank valve]

why would a point be taken off for the correct answer?

oh wait nvm

13 was the "Got Wrong" solution

[jade widget]

[frank valve]

that one kid who skipped all the way to the end of the test and spent the whole 75 minutes attempting q25 only for it to be voided

[ivory ember]

this happened like a decade ago and everyone got 6 [https://artofproblemsolving.com/wiki/index.php/2015_AMC_10A_Problems/Problem_20]

[near hill]

13 is the number of (P,Q) pairs, unless I'm mistaken.

[jade widget]

yay

[warped wedge]

Do yall think theres a chance of sub 80 AIME cutoff for the 12A this year, (before void)

[soft vigil]

wasnt p22 on 12a like a 10 sec solve

[warped wedge]

Considering international scores dont count anymore

And less cheating, harder questions, and declining number of test takers

[stuck tartan]

oh the [0,1] one

i lwk skipped ts cuz i didn't know the trick 🥀

[soft vigil]

bruh

i took 10a but when i got told the problem i deadass headsolved it

[frank valve]

yeah it's actually shockingly easy. ||there must be a largest value among the 3 randomly selected on [0,1], and if we call this value a then the other two points must be less than a. our conditions will be satisfied if and only if both other points are less than a/2, and this has a 1/4 chance of occurring||

[frank valve]

that would be pretty sweet

lowk don't even know if I would make an 80 cutoff tho cuz my performance was so dogshit

[steel parcel]

good work

[steel parcel]

u have a good shot

[hushed forge]

oh i was talking abt aime qual 10a

u gotta account fro leakers

so cutoff will prob be 110

[green flume]

sup chat

[soft vigil]

dawg

[winter elm]

lowball

at least 114

[thick sierra]

yup

[terse canyon]

u gotten a gold?

[slow mason]

yup

[terse canyon]

cool

did u prep

[slow mason]

no

[terse canyon]

O cool nore did i

i got exact gold last yr

[slow mason]

good job

[terse canyon]

U do further?

[slow mason]

whats that

[terse canyon]

further math

rnt u in the uk

[slow mason]

no

[terse canyon]

what system?

[slow mason]

myp-gcse-ib

[terse canyon]

ah ok

so ur doing ib rn

Senior?

[slow mason]

wait im year 9

[terse canyon]

Bro what

😂😂

So u did the JMC

[slow mason]

no i did smc

[terse canyon]

tf

in year 9?

[slow mason]

yeah

[terse canyon]

alr thats insane

[slow mason]

oh thx

[terse canyon]

😂

no

prob

[ripe flume]

Guys I'm 9th grade I'm great at math in school i like solving hard porblems i wanna go deeper into competitions i have some experience and some golds in national and local competitions I'm doing aops series is it too late or is now a goood time to dive deep into this? I have heard that advanced competitions participants start from a very young age

[near hill]

It's never too late.

[ripe flume]

Okay thank you mister if anyone got a 2nd opinion please share

[sour hazel]

Hello , i want to start learning math olympiad problems solving and i have only med school experience , from where i can start and with what .
I am in 8th grade
Thanks.

[tiny raven]

I’m only asking cus I’m confused but do u mean middle school

[sour hazel]

middle school yes

[tiny raven]

Oh cool sorry I don’t have an answer for you I was just wondering

[slim bane]

hey guys,
I'm preparing for the AMC10 (I'm in 8th grade btw) and was wondering if you think CRT and Euler's Totient Function and Fermat's Little Theorem would be useful. Also any more topics I need to know in number theory, counting and probability, or geometry?

Thanks,
A guy in California

[wraith tartan]

yes

[ripe flume]

Hi if you dont mind me asking when did u start doing math comeptitons and Olympiad and taking it srsly

[slim bane]

i've been doing math for a long time, but AMC 10 prep only since 7th grade

Recently, I got a 20/25 on AMC 8, solving the first 17 questions, with a few straglers in the later questions

i practiced my skills on a amc 10 a paper from last year and got 99

[outer vessel]

comp math is a whole different category of math

[slim bane]

yeah

it's tough

i've been doing olympiad math since 5th grade

this year will be my first AMC 10

when I say olympiad math, I mean AMC's

I've read the entire Introductory course of aops

finished Volume 1: The Basics...

and am doing Volume 2: ... And Beyond

anything else I need to read or do to qualify?

for AIME that is

[tranquil dagger]

if u want to just qualify for aime i think vol 1 is enough

i just did that this year and got 96 on amc 12 (no q 25 void)

[reef condor]

9th isn’t even late

[slim bane]

thanks @tranquil dagger

and @wraith tartan

[rugged solstice]

i join Troposphere's opinion.
i am in my national young exact science team, and it started in grade 8, just a year before (im grade 9 now too)

[kindred pawn]

this is true

I didn’t study comp math until like the spring of 2025

and then I managed to qual for aime from amc 10a

(I’m in 9th as well)

Well like

Not confirmed qual

But very high chance

[reef condor]

i mean even for imo

it isn't early but it's not late, people have made it before afaik

or at least mop

ok well it is late but its not too late

[stable pewter]

damn what is up with yall freshman

comp math was beating my cheeks in freshman year 😭

[frank valve]

comp math wasn't beating my cheeks when I was a freshman cuz I didn't even do math recreationally back then

I was a bit of a loser back then

started in the 10th grade so I got a bit of a late start. probably at least partially why I'm so cheeks at it

[thin pumice]

dude how???? Why r u so smarttt??? And r u doing cimc soon?

If ur in canada?

[kindred pawn]

Not canadian

[thin pumice]

Oh

[kindred pawn]

Amc is american

[thin pumice]

ik but its available in most countries

what did u get on amc 8 last year if u did it?

[kindred pawn]

I didn’t do amc 8

too lazy back then

[thin pumice]

DANGGG

[thin pumice]

ur so damn smarttt

[kindred pawn]

well like

I did a mock version once before I actually started studying

and did bad

like in 7th grade

[thin pumice]

oh but U GOT SO GOOD FOR 10

[kindred pawn]

ts amc 10a was difficult

like the hardest one out of any one

[thin pumice]

actually?

[thin pumice]

Damn but youre smarttt

[kindred pawn]

the threshold is probably lower to get in tho

[sullen zenith]

whatd u get?

[thin pumice]

oh that makes more sense

[kindred pawn]

Like around 100ish

[sullen zenith]

Nice

[thin pumice]

sameee

but i did last year

[kindred pawn]

idk why there was so much geometry on that

like a LOT more than previous amcs

or maybe that’s just me

[sullen zenith]

Trust, the B will have Algebra and NT main, with some obscure Combo problems

[thin pumice]

thats saddd

Geometrys easier

[kindred pawn]

I’m better at geo and stuff so I’m doing A

Like next time

[unkempt quest]

like modular n stuff in NT?

[snow elm]

CSMC tmr

I cooked

[sullen zenith]

yes

[snow elm]

I got a bad feeling even I know how to do most of the past contests

[ornate coyote]

is it too late to start competition math im in 9th grade

[unkempt quest]

bro ur in otis wdym is it too late 😭

[ornate coyote]

whats otis

[unkempt quest]

lmao what 😭

[reef condor]

The implication, if it wasn’t obvious, is that you already started.

[ornate coyote]

it might be too late

[reef condor]

For what

[ornate coyote]

to start since i already started

duh

[reef condor]

True

[ornate coyote]

this guy perf scored on the amcs

[ripe flume]

😭😭😭😭😭😭😭

[stuck tartan]

lmfao 💀

[subtle sundial]

ur a unit bruh dw about it

[frank star]

hi guys I have like a question on how to get like really good at problem solving, especially in math/physics olympiads, I have been doing math olympiads since I was like 6 years old but not really seeing that much progress

[subtle sundial]

.

jk

[fair forge]

in my school tho they do it till 10th bro

[wet warren]

1. practice problems slightly above your level
2. learn general techniques, like test smaller techniques to see patterns or find invariants. it seems obvious but they need to become second nature

if you read a solution for a problem and don't understand something, add the concept to your repertoire

[wet warren]

yep

delete that, someone can report you

[frank star]

Overall I think it's good to start at any time since you train your brain

which is good

[ornate coyote]

Least obvious ragebait

[reef condor]

It’s a joke in case it wasn’t obvious, but I will

[wet warren]

yeah, you can get banned for jokes

[reef condor]

Yeah I know

[deft totem]

doing olympiads since u were 6 is wild

first time i went to a math or physics olympiad was in 11th grade

obviously i didnt do very well

but i did get 1st place in the physics olympiad two weeks later

[reef condor]

Orz

[deft totem]

cuz nobody else did much of anything

[reef condor]

1st in IPho after 2 weeks?

[deft totem]

and i got 16 points while the next highest was 4

[deft totem]

not ipho

it was the regional in my country, but the official one, i had a chance to get invited to the national one, and after that it would be the international

[deft totem]

thats out of 50

[reef condor]

Are you sure it wasn’t IPho? IPho is also out of 50…

[deft totem]

i still feel like i didnt do very well and should've gotten 30

[reef condor]

What country?

[deft totem]

lithuania

[reef condor]

Nice

[deft totem]

now that i look at those questions i can do them pretty easily

but im choosing to pursue maths further. instead of physics, im still not 100% sure though

so far im doing the book of proof by richard hammack

[frank star]

damn

I barely did physics olympiads I only did like math

geometry mostly

[deft totem]

i done only 1 physics olympiad

that was my first

[frank star]

but rn I do calculus 2

[deft totem]

i basically had no prep

[frank star]

at like 15

its a bit hard but like

you just have to practice

[deft totem]

how about u do intro to proofs, then discrete maths then linear algebra

[frank star]

people say calculus 2 is hardest

[deft totem]

then abstract algebra

and analysis

[frank star]

well good idea but

I started calculus already

I started it basically

so I could code neural networks

[deft totem]

oh

[frank star]

but now for other stuff

[deft totem]

so ur more into applied maths?

[frank star]

bro I coded like a neural network at 13 lmao

uh

both

I like both

[reef condor]

Yeah that’s way too late

[frank star]

not only applied

[reef condor]

If you don’t start before 6,7 you’re cooked

[frank star]

67?

Is 67 a prime number ?

[reef condor]

Tests

Years

[frank star]

I think so

[reef condor]

I coded my first NN at 4 years and 1 month

[frank star]

cap

[reef condor]

Yeah it was actually 9 years 3 months

[frank star]

why did you lie

[reef condor]

Past the recommended 6,-7 year starting point

[frank star]

lol

[reef condor]

Bro do you not know 41, 67, and 93?

[frank star]

lol

I know what 41 is

[reef condor]

Ok

93 = 67*2-41

[frank star]

lol

sin(45) * sqrt(2) = ___

45 in degrees

[reef condor]

1.0000416793

[frank star]

well acctually its 1

[reef condor]

Oh

[frank star]

1//sqrt(2) * sqrt(2)

[reef condor]

Close enough

[frank star]

lol

idk why you did such an answer

[reef condor]

Cuz I wanted to troll

[frank star]

integral x dx

is ...

[reef condor]

x^2/2 + (C+416793)

[frank star]

idk how to integrate x! tho

[reef condor]

Well

[frank star]

lol

[reef condor]

You do gamma function

[frank star]

I have never really learned it

I only saw it

[reef condor]

e^-x x^(n+1)

And ig that’s possible

Double integral

[frank star]

I know that like (1/2)! is like

pi/2

or something

sqrt(pi)/2

sorry

something like that

[reef condor]

Apparently

Integral from 0 to x of n! dn is around n!

[frank star]

but not exactly

n!

in what grade are you rn btw

[reef condor]

(6,7)+4

In that range

[frank star]

lol

so 10 - 11th

or

you mean

[reef condor]

Yeah

[frank star]

19,7th

10,7th

[reef condor]

Nah

I’m not 19 in 7th grade

Or 10 in 7th grade

[frank star]

I wanted to say

10,7

[reef condor]

Ok

[frank star]

lol

yk what the fourier transformation is

[reef condor]

Yeah

[frank star]

https://tenor.com/view/leinie-wigglebox-wiggles-gif-27622672

I still dont understand

how this can happen

in space

with no particles

the higgs field

[reef condor]

Well it’s phenomelogival so you can’t seek to understand it by studying the math

Just accept that it exists because it has been observed

[frank star]

soon

we will kn ow

in

10^5 years

[frank star]

are you kinda self taught btw

[reef condor]

I guess

Not completely

Also are you us

[frank star]

ok

no

eu

[wet warren]

in some places linear algebra is your first exposure to proofs

[radiant bluff]

Hey guys, is there anyone who did the CIMC and want to discuss?

[thin pumice]

Arent we not allowed to discuss till 48h? But IT WAS SO FCKIN HARD 😭

i started crying half way through

[radiant bluff]

We can discuss privately I believe