Three Phillips Exeter Academy students — Alex Song, Ray Y. Li, and Kevin C. Sun — shocked the world when they respectively won the gold, silver and bronze medals in the 54th International Mathematical Olympiad in Santa Marta, Colombia.
While the U.S. team placed third overall — Song competed on Team Canada — the trio won the medals for individual performance.
The annual competition is a six question, two day, nine hour proof competition with competitors from over 100 countries on 9 continents.
Here’s this year’s set of questions via the IMO website. You have four and a half hours for each set. See if you can solve them:
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