Multiple choice general knowledge math & puzzles

Which numerical written in english follows alphabetical order although not continous

  1. 34

  2. 90

  3. 40

  4. 30

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The word 'forty' (40) is the only number in English whose letters (F-O-R-T-Y) appear in alphabetical order. Other numbers like 30 (thirty) or 90 (ninety) do not follow this rule.