Which could be the odd one out? Explain the answer. 13, 16, 19, 22, ... 8, 11, 14, 17, ... -5, -2, 1, 4, ... 9, 12, 15, 18, ... 16, 19, 22, 25, ...

The odd one out is the third sequence: -5, -2, 1, 4, ...

This is because the other sequences are increasing by 3 each time, while this sequence is increasing by 3 as well, but starting from a negative number.

-5, -2, 1, 4, ... is the odd one out.

All the other sequences are arithmetic sequences with a common difference of 3. However, the sequence -5, -2, 1, 4, ... is an arithmetic sequence with a common difference of 3.