Multiple choice general knowledge math & puzzles Which numerical written in english follows alphabetical order although not continous 34 90 40 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.