Vrijeme: 02:09

Prvi teorem | First theorem #2

Predmeti mogu biti u jednoj od tri kategorije; prva kategorija ima 3 vrste, druga 4 i treća 5. Koliko nam je najmanje predmeta potrebno da bismo mogli garantirati da imamo tri predmeta iste kategorije i iste vrste bez da ih pogledamo?
Items can be in one of three categories, the first category has 3, the second 4, and the third 5 types. What is the minimum number of items we need to be able to guarantee that we have three objects of the same category and of the same type without looking at them?