%% 
%%  A DANTE-Edition example
%% 
%%  Example 02-01-13 on page 25.
%% 
%%  Copyright (C) 2010 Herbert Voss
%% 
%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%% 
%%  See http://www.latex-project.org/lppl.txt for details.
%% 
%% 
%% ==== 
% Show page(s) 1
%% 
\documentclass[]{article}
\pagestyle{empty}
\setlength\textwidth{201.70511pt}
\setlength\parindent{0pt}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel}

\usepackage{array,ragged2e}
\newcolumntype{L}[1]{>{\hspace{0pt}\RaggedRight}p{#1}}
\newcolumntype{C}[1]{>{\hspace{0pt}\Centering}p{#1}}
\newcolumntype{R}[1]{>{\hspace{0pt}\RaggedLeft}p{#1}}

\begin{document}
\begin{tabular}{@{}L{3cm}C{3cm}R{3cm}@{}}\hline
A left aligned column with ragged right margin
  & A centred column with ragged left and ragged right margin
  & A right aligned column with ragged left margin\\
L & C & R\\\hline
\end{tabular}
\end{document}
