Odd One Out: 7,9,11,12,14,15

Explanation:

Step 1: Identify the Pattern
The first step to solve this question is to identify the pattern among the given numbers. Here, we can observe that all the given numbers are either odd or even except for one number. Therefore, we can conclude that the odd one out must be the number that does not follow this pattern.

Step 2: Analyze the Options
Now, let's analyze each of the given numbers to identify the odd one out.

- 7: This is an odd number.
- 9: This is an odd number.
- 11: This is an odd number.
- 12: This is an even number.
- 14: This is an even number.
- 15: This is an odd number.

Step 3: Find the Odd One Out
From the above analysis, we can see that all the given numbers are odd except for the number 12 and 14, which are even numbers. Therefore, the odd one out among the given numbers is:

12

Conclusion:
In conclusion, the odd one out among the given numbers 7,9,11,12,14,15 is the number 12 because it is the only even number in the given sequence.