Question

How many different ways are there to arrange the letters A, B, A, and B?

4
6
8
16

Answer 1

ABBA
AABB
BBAA
BABA
ABAB
anything else?

Answer 2

6

Answer 3

Total no. of letters 4!
no. of times A repeated 2!
no.o times B repeated 2!
so 4!/(2!*2!)= 24/4=6

Answer 4

Infinite.

Answer 5

well I would have said 24 ways..... 4 choices for the 1st position, 3 choices for the 2nd , 2 choices for the 3rd position and only 1 choice for the 4th postion... 4 x 3 x 2 x 1 =24

Answer 6

@raging BAAB is the 6th sequence
@camp both A and B are repeated. when you write down BB that is only one combination. Your way will count it as 2.