Odd one out
The question
Which number is the odd one out?
Which number is the odd one out?
18905437
18905437
18905437
37
- Instead of hunting for the odd one, look for what the others share.
- Look for a property three of them have: 18, 90, 54 — they are all multiples of 9.
- 37 is the one that does not, so it is the odd one out.
How it works.
- 01
Instead of hunting for the odd one, look for what the others share.
- 02
Look for a property three of them have: 18, 90, 54 — they are all multiples of 9.
- 03
37 is the one that does not, so it is the odd one out.