\documentclass[4apaper,11pt]{report}

\usepackage{xepersian}
\settextfont[Scale=1.1]{XB Zar}
%\setdigitfont{XB Zar}
\setlatintextfont[Scale=1]{Times New Roman}
\setlatintextfont[ExternalLocation,BoldFont={lmroman10-bold},BoldItalicFont={lmroman10-bolditalic},ItalicFont={lmroman10-italic}]{lmroman10-regular}
%%%%

\begin{document}
\tableofcontents
\chapter{دسته‌بندی}

\appendix
 
\chapter{  نتاج ارزیابی یک مثال ساده}

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\end{document}