- #1

- 35

- 1

In how many ways could none of them have taken the right umbrella?

I'm having a bit trouble with this, as I can't seem to solve it without having to do some rough counting some times. Can any of you bother to solve this and explain it to me?

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- Thread starter Calabi_Yau
- Start date

- #1

- 35

- 1

In how many ways could none of them have taken the right umbrella?

I'm having a bit trouble with this, as I can't seem to solve it without having to do some rough counting some times. Can any of you bother to solve this and explain it to me?

- #2

- 828

- 2

Take a look at this link: http://www.proofwiki.org/wiki/Hat-Check_Problem

- #3

- 144

- 0

- #4

- 35

- 1

Thanks guys.

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