如何包含来自不同文件夹的 tex 文件？

Question

我在这里创建数学作业表时遇到了问题。我所做的就是每天为数学作业创建一个文件夹。从图片中可以看到，一个大文件夹下有这么多文件夹。

我想创建一个主文本来创建包含所有日常数学作业的单个数学工作表。但我不知道该怎么做？有人能帮我吗？非常感谢。

而且我也正在寻找一些关于使用 probsoln 包的视频，有人可以与我分享这些资源吗？

感谢你的帮助。

此致

约翰尼

以下是最低限度的工作示例：

在 main.tex 中，我尝试过

\documentclass{article}

\usepackage{graphicx}

\begin{document}

    \input{SL Homework 28-March 27/2020327 SL Homework 28.tex}

\end{document}

但它没有起作用。

在一项日常作业中，我使用了：

\documentclass[11pt, addpoints]{exam}
\usepackage{amsmath,amsthm,amssymb, algorithm, algpseudocode, multicol,epstopdf,tikz}

\usepackage[right=0.6in, left=0.6in, top=1in,bottom=1.2in]{geometry}


\begin{document} 
    \begin{questions}
        \question  The length of time, in seconds, that it takes to transfer a photograph from a camera to a computer can be modelled by a normal distribution with mean 4.7 and variance $0.7225 .$ Find the probability that a photograph can be transferred in less than 3 seconds.
        \begin{solutionordottedlines}[1.5in]
            $0.0228.$
        \end{solutionordottedlines}

        \question  Crates of tea should contain $200 \mathrm{kg}$, but it is known that 1 out of 45 crates, on average, is underweight.
        A sample of 630 crates is selected at random.
        \begin{enumerate}[(a)]
            \item  Find the probability that more than 12 but fewer than 17 crates are underweight.
            \item Given that more than 12 but fewer than 17 crates are underweight, find the probability that more than 14 crates are underweight.
        \end{enumerate}
        \begin{solutionordottedlines}[1.5in]
            $(a)\ 0.408,\quad (b)\ 0.483.$
        \end{solutionordottedlines}

    \end{questions}


\end{document}