Question

In how many ways can Kelly read 4 books, assuming she reads each book once?

Answer 1

What do you mean?

Answer 2

Um...this is how the question was asked.

Answer 3

We will name each book by a number 1, 2, 3, 4. So you have to make different combinations of the order of the book:

1, 2, 3, 4
1, 2, 4, 3
1, 3, 2, 4,
1, 3, 4, 2
1, 4, 2, 3
1, 4, 3, 2
2, 1, 3, 4
2, 1, 4, 3
2, 3, 1, 4
2, 3, 4, 1
2, 4, 1 ,3
2, 4, 3, 1.....and so on so you end up with 24 possible combinations.

Answer 4

oh that makes sense

Answer 5

@InstagramDoll thanks