Problem M. 378. (May 2018)
M. 378. Measure by what percent does a mosquito net (or any similar material) decrease the transparency of a window.
Deadline expired on June 11, 2018.
5 students sent a solution. 6 points: Fajszi Bulcsú, Krasznai Anna, Morvai Orsolya, Olosz Adél. 5 points: Osváth Klára.