%%
%% The LaTeX Companion, 3ed
%%
%% Example 6-6-6 on page I-471 in "\protect \LmPack {booktabs} --- Formal ruled tables".
%%
%% 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}
%StartShownPreambleCommands
\usepackage{booktabs}
%StopShownPreambleCommands

\begin{document}
\begin{tabular}{llr}  \toprule
 \multicolumn{2}{c}{Items} &\multicolumn{1}{c}{Price/lb} \\
\cmidrule(r){1-2}\cmidrule(l){3-3}
  Food & Category & \multicolumn{1}{c}{\$}\\
\midrule
  Apples  & Fruit & 1.50  \\     Oranges & Fruit & 2.00  \\
  Beef    & Meat  & 4.50  \\
\bottomrule \end{tabular}
\end{document}