Combinatoricsmedium
0:00.0
A boutique owner has 6 unique decorative lanterns and wants to hang them in a row. However, the blue lantern and the red lantern are rivals and cannot be adjacent. How many possible arrangements can the owner create?
A boutique owner has 6 unique decorative lanterns and wants to hang them in a row. However, the blue lantern and the red lantern are rivals and cannot be adjacent. How many possible arrangements can the owner create?