Which of the following uses hyphens correctly?

His shirt was too small, but it was well pressed for a man of twenty-four.
His shirt was too small, but it was well-pressed for a man of twenty-four.
His shirt was too small, but it was well-pressed for a man of twenty four.

Question

Which of the following uses hyphens correctly?

His shirt was too small, but it was well pressed for a man of twenty-four.
His shirt was too small, but it was well-pressed for a man of twenty-four.
His shirt was too small, but it was well-pressed for a man of twenty four.

Vocaloid · Answer

any attempts to look up the correct spelling of either of the hyphenated words?