Question

An elf, a dwarf, a hobbit, a wizard, and a man are sitting in a line. How many different ways can they sit if the elf and the dwarf insist on sitting next to each other?

Answer 1

Consider the elf and the dwarf as one item, so you are now arranging 4
which is 4! or 24
but we can switch the elf and the dwarf and still have them side by side, so

2(4!) = 48

Answer 2

mmkmk