That's easy. Eleven passengers and a crew of nine.
5 seconds sound clip from the Desk Set (1957) movie soundboard.
You can hear this line at 00:31:18 in the Blu-ray version of the movie.
Quote context
[...]
- At 125th Street four got off and nine got on.
- At White Plains, three got off and one got on.
- At Chappaqua nine got off and four got on.
- Then it reached the terminal.
- That's easy. Eleven passengers and a crew of nine.
- Uh, w... That's not the question.
- How many people got off at Chappaqua?
- Nine.
[...]