4 choices for the first letter
3 choices for the second, once the first has been chosen
2 choices for the third, once the first and the second have been chosen
1 for the last
So it's 4x3x2x1 = 24
There are 3360 ways.
4*4*4 = 64 ways.
10080
12
6
Since there are 4 letters, they can be arranged 4! ways (4*3*2*1) or 24 ways.
There are 4 characters.They can be arranged within themselves so they can be arranged in 24 ways.[Note : The formula for this is n! if there are n characters.]
24 ways.
There are 40,320 ways to arrange eight letters. In this case, around sixty of those ways will result in English words.
There are 3360 ways.
40
4*4*4 = 64 ways.
There are 40,320 ways to arrange eight letters. In this case, around sixty of those ways will result in English words.
There are 30 ways.
24 ways
10080
12