SOLUTION: There are 4 rows of button like 1 2. 3 4. 5. 6 7. 8. 9

Algebra ->  Permutations -> SOLUTION: There are 4 rows of button like 1 2. 3 4. 5. 6 7. 8. 9       Log On


   

Question 1013816: There are 4 rows of button like 1 2. 3
4. 5. 6
7. 8. 9
0
How many 4 digit bank numbers possible?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
How many 4 digit bank numbers possible?
-------------
10^4 = 10000
-----
How the rows are arranged is not relevant.