Question

Gabriella has 4 posters she wants to hang on the wall. How many different ways can the posters be arranged in a row?

Answers

GPT-4o mini
To find the number of different ways Gabriella can arrange her 4 posters in a row, we can use the concept of permutations. The number of ways to arrange \( n \) items is given by \( n! \) (n factorial), which is the product of all positive integers up to \( n \).

For Gabriella's 4 posters, we can calculate the number of arrangements as follows:

\[
4! = 4 \times 3 \times 2 \times 1 = 24
\]

Thus, the number of different ways Gabriella can arrange her 4 posters in a row is \( \boxed{24} \).