imo 2024 (1 Viewer)

[tywebb]

1st 3 questions for 2024 imo:

australian contestants:

only half done so far so 3 more questions coming later and should be very soon

 

[tywebb]

here is 4-6

and the 6 questions have been put together in a single pdf file attached

 

[tywebb]

btw, did you know that next year the imo will for the first time since 1988 be held in Australia.

This time it will be in Melbourne. In 1988 it was in Canberra.

 

[tywebb]

2024 solutions: https://static1.squarespace.com/sta...721231178032/IMO+2024+-+Paper+1+Solutions.pdf

 

[tywebb]

so how about older imo solutions?

imo compendium 1959-2009 available as ebook. website: https://imomath.com ebook: https://link.springer.com/book/10.1007/978-1-4419-9854-5 not free though €71.68

then the shortlists with solutions available for free 2006-2022 at https://www.imo-official.org/problems.aspx and the 2023 shortlist with solutions will be there in a few days (after the conclusion of 2024 imo which is officially July 22 UK time). Nevertheless Evan Chen has 2023 solutions at https://web.evanchen.cc/exams/IMO-2023-notes.pdf

 

[tywebb]

incomplete scoreboard is at https://local.imo-official.org/Mboards/Scoreboard.aspx?page=1&dimX=4&dimY=3&time=1000
results so far for australia:

probably finalised tomorrow
lots of 7s there especially for AUS3 so expect at least 1 medal
medal cutoffs not finalised either

 

[tywebb]

going through all 9 pages there are a lot of 0s for P3 and P6 - negatively impacting on medal cutoffs

ones to watch: 2 potential perfect scorers from china - CHN4 and CHN5, especially CHN4 who already got 7 for both P3 and P6!

but in all 9 pages there are only 2 with 35 so far - which means there can only be at most 2 perfect scorers.

 

[tywebb]

hard to predict what will happen and although china is doing really well, so far usa is beating china on points with 162 so far vs. china's 157:

 

[tywebb]

Turns out there was 1 perfect scorer from China, Haojia Shi who incidentally did the same thing last year
Final China scores

But USA beat China on points with 192 and hence USA is ranked 1 out of 108 countries, and China ranked 2
Also medal cutoffs are bronze≥16, silver≥22, gold≥29
USA final results:

Here are the Australian final results:

and Australia is ranked 38

 

[tywebb]

honourable mention (HM) means a 7 in any question

i have met maths teachers who said they can't do any imo questions.

so a 7 in any question is a good achievement, especially for a year 10 student - even if they don't get a medal.

as you can see Amber Li, a year 10 student from Pymble Ladies College is one such contestant.

the amt wrote an article about her at https://www.amt.edu.au/news/meet-am...2024-international-mathematical-olympiad-team

 

[tywebb]

there is also a youtube with Cloris Xu and Iris Xu who both got bronze medals

(audio only)

 

[tywebb]

btw did you notice that australia beat both china AND the usa in question 4?

the total for australia in question 4 was 42, but usa and china both got 40.

 

[arcadian]

also this the first time in aus imo history that the team is majority girls