packages.tex

\documentclass[10pt, a4paper]{article}
% \usepackage[margin=1in]{geometry}
\usepackage[top=1in, bottom=1in,left=0.75in, right=0.75in, paperwidth=8.5in, paperwidth=11in]{geometry}
\begin{document}
\textbf{CIA 2}
\def\eq{y=\dfrac{x}{3x^2+x+1}}
\begin{enumerate}
    \item This is a first Question \eq
    \item This is second Question
    \item Explain $\int\limits_{1}^{\infty}f(x)dx$ and $\sum\limits{n=1}^{\infty} a_n$
\end{enumerate}
\begin{itemize}
    \item This is a second Question
\end{itemize}
% \includegraphics[scale=1]{file}
\begin{center}
    \includegraphics[width=0.25\textwidth]{file}
\end{center}
\begin{columns}[c]
        \column{.45\textwidth}
        \textbf{Heading}
        \begin{enumerate}
            \item Statement
            \item Explanation
            \item Example
        \end{enumerate}

        \column{.5\textwidth} % Right column and width
        Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer lectus nisl, ultricies in feugiat rutrum, porttitor sit amet augue. Aliquam ut tortor mauris. Sed volutpat ante purus, quis accumsan dolor.

    \end{columns}
\end{document}