#3248: 182.8 Meters

XKCD comic, described below.
Transcript

[Hairbun stands at a podium to the left, gesturing toward a sign, with an oval (likely representing the bay) and some illegible text on it. Four visitors stand nearby observing: Ponytail, Cueball, Megan, and White Hat (in that order). Cueball has a thought bubble.]

Hairbun: In some places, the bay is more than 182.8 meters deep.

Cueball: (thinking) "More than"? Why would they use that for such a precise...

Cueball: (thinking) ...Aha! 100 fathoms!

[Caption below the panel:]

My Hobby: Reverse-engineering original units


(Sourced from explainxkcd.com)

Title text:They rounded down to 182.8 instead of rounding up to 182.9 because 182.9 might make the statement incorrect.


ExplainOriginal