Mathematics
NULL
Medium
Question
Which permutation of 1, 2, 3 is the odd one out?
A
123
B
132
✓ Official correct answer
C
231
D
321
Community credibility
Registered members can vote for the answer they believe is correct today and explain why. If the facts change after an election or news event, suggest a new option so others can vote it up.
A
123
No member explanations yet for this option.
B
132
No member explanations yet for this option.
C
231
No member explanations yet for this option.
D
321
No member explanations yet for this option.
Explanation
123, 231 and 321 keep consecutive digit order (forward, rotated or reversed); 132 breaks that order.