Question

I want to read 4 books over the next month. My bookshelf has 12 different books. In how many ways can I choose which books to read over the next month, without regard to the order that I read them?

Answer 1

Explanation:

You are going to choose 4 books in any order.

Four = 12! /(8!4!) Remember that order doesn't matter, so we have 12C4

495