Pearl’s start-up sells sets of circular bands for labelling wine glasses. Each band has four beads, each of which can be orange, blue, or silver. Two bands are the same if they can be made to look the same by rotation and/or turning over. E.g. all bands with three blue beads and one silver bead are the same. How many distinct bands can she put in each set? Briefly justify your answer and/or show work.

Q&A Education