\documentclass[a4paper,10pt]{article}
\usepackage{myXsim}

\title{Loi exponentielle - exercices}
\tribe{Terminale Sti2d}
\date{Avril 2020}

\pagestyle{empty}

\DeclareExerciseCollection{banque}
\xsimsetup{
    step={4},
}

\begin{document}

\input{banque.tex}
\printcollection{banque}

\end{document}