Question

In how many ways can the letters A, B, C, D, E, F, G, H be arranged?

Answer 1

40,320

Explanation:

There are 8 letters in total:

So, in the first place we can put all 8 letters

In the 2nd place we can put 7 (all except the letter in the first place and so on...)

Let's multiply the options (the order is important):

8! or 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1 = 40,320 (8 places for letters in total)