They are Mun Hak Myong, Mun So Min and Hong Chung Song of Pyongyang Secondary School No. 1.

The Olympiad held in the Netherlands from July 17 to 23 brought together more than 560 students from over 100 countries and region.

Math problems in the fields of theory of numbers, algebra, geometry and combinatorics were presented.

The DPRK students successfully solved difficult problems requiring high concentration and thinking power.

Ri Yong Hyon and Ryu Song Chol of Pyongyang Secondary School No.1 and Kim Hyo Song of East Pyongyang Secondary School No. 1 received silver medals.