The questions from IMO 2015 have been posted. Try your hand and see which questions you can do! I strongly encourage you to do Question 2, Question 4 and Question 5.
The participants will be out enjoying the various excursions, while their team leaders are fighting for points. Which country do you think will be top?
Here are some of last years returning Gold Medalists to this years IMO!
Australia:Alexander Gunning (bronze 2012, gold 2013, gold 2014)
Canada: Alex Song (bronze 2010, gold 2011-2014) Kevin Sun (bronze 2013, gold 2014)
China: Jiyang Gao (gold 2014)
Hungary: Zsombor Feher (bronze 2013, gold 2014)
Kazakhstan: Akhan Ismailov (gold 2014)
North Korea: Songyong Choe (silver 2013, gold 2014)
Romania: Stefan Spataru (bronze 2012, silver 2013, gold 2014)
Singapore: Yijia Liu (silver 2013, gold 2014) Sheldon Kieren Tan (gold 2014) Siah Yong Tan (gold 2014)
United States: Allen Liu (gold 2014) Yang Liu (gold 2014)
Vietnam: The Hoan Nguyen (gold 2014)
A special callout toZhui Qun (Alex) Song from Canada! If he continues his streak, He will be on the top of the IMO Hall of Fame with 6 medals in the IMO(5 Gold)! (which he has done and taken up #1 on the Hall of Fame!)