SOLUTION: how many numbers consisting of 2 digits can be formed with the help of digits 1,2,3,4 such that each number contains 1

Algebra ->  Permutations -> SOLUTION: how many numbers consisting of 2 digits can be formed with the help of digits 1,2,3,4 such that each number contains 1      Log On


   

Question 346589: how many numbers consisting of 2 digits can be formed with the help of digits 1,2,3,4 such that each number contains 1
Answer by Edwin McCravy(20054) About Me  (Show Source):
You can put this solution on YOUR website!


1. 11

2. 12

3. 13

4. 14

5. 21

6. 31

7. 41



I count seven.