Correct Answer - Option 3 : 14
Given:
1, 3, 5, 11, 14, 17, 21
The logic is:
All the numbers in the series except 14 are odd and 14 is an even number.
1. 21 → Odd Number
2. 17 → Odd Number
3.14 → Even Number
4. 3 → Odd Number
All numbers except '14' are odd numbers.
Hence, ‘14’ is the odd one out.