HONG KONG, July 23 (Xinhua) -- Five high school students have won a gold, two silver and two bronze medals at the 50th International Mathematical Olympiad (IMO) in Germany, scoring the best results for the Hong Kong team since 2006.

    The competitors were selected to represent Hong Kong for their outstanding performance in the IMO Preliminary Selection Contest held last year.

    Gold medallist Ching Tak-wing, a Secondary Five student of Queen's College won a silver medal in the China Mathematical Olympiad 2009 in January.

    The two silver medallists are Kenneth Hung of Diocesan Boys' School and Lam Cho-ho of STFA Lee Shau Kee College. The bronze medallists are La Salle College's Chung Ping-ngai and STFA Leung Kau Kui College's Ng Ngai-fung.

    The Olympiad was held during July 10 to 22 in Bremen.