Answer:
The total number of ways to form a two number without repetition is 12.
Step-by-step explanation:
The given digits are 1, 5, 6 are 8. Total number of digits is 4.
We have to form a two digit number without repeating a digit. So, the total ways to choose a number for first place is 4.
Since repetition is not allowed, therefore the total ways to choose a number for second place is 3.
Total number of ways to form a two number without repetition is
[tex]4\times 3=12[/tex]
Therefore the total number of ways to form a two number without repetition is 12.