Question

A 12 volume encyclopedia is to be placed on a shelf. How many incorrect arrangements are there?

Answer 1

Let's start off with this question instead: how many correct arrangements are there?

Answer 2

isnt there only 1 correct arrangement?

Answer 3

I'm pretty sure that would be the case.

One more question: how many total arrangements are there?

Answer 4

479,001,600 possible arrangements

Answer 5

ooooh

Answer 6

i see how you get it, its basically no restrictions minus what you dont want

Answer 7

Also correct. Although it's generally easier to leave it as just \(12!\) instead of calculating the actual number.

Using those two numbers, how many incorrect arrangements are there?

Answer 8

Yes, that's precisely it.

Answer 9

thank you

Answer 10

You're welcome.