%%
%% The LaTeX Companion, 3ed
%%
%% Example 3-3-25 on page I-171 in "Quantities".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See https://www.latex-project.org/lppl.txt for details.
%%

\documentclass{tlc3exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{135.0pt}
\setlength\parindent{0pt}
%StartShownPreambleCommands
\usepackage{siunitx}   % next line defines a new unit...
\DeclareSIUnit[per-mode=symbol]\kmh{\kilo\metre\per\hour}
%StopShownPreambleCommands

\begin{document}
Typical inner-city speed limits are
\qtylist{7.5;10;30;50}{\kmh}. Cyclists
usually travel between \qtyrange{10}{25}{\kmh}.
\end{document}