plastic cubes of the same size into 5 colors
Source: Spanish Mathematical Olympiad 1969 P3
December 4, 2022
combinatorics
Problem Statement
A bag contains plastic cubes of the same size, whose faces have been painted in colors: white, red, yellow, green, blue and violet (without repeating a color on two faces of the same cube). How many of these cubes can there be distinguishable to each other?