5
Chat with our AI personalities
3 items (or people) can line up in 6 different sequences. 6 items (or people) can line up in 720 different sequences.
15C3 = 455
If you keep them in a line, there are 24 ways to line them up. Then of course there are squares, diamonds, rectangles, parallelograms, stacks, etc.
There are 1680 ways of arranging them is a straight line: fewer if in a circle.
you can arrange three beads 9 different ways.