Teacher Zhang brought some money to buy office supplies for the school. If you use the money to buy only file folders, you can buy exactly 20, and you can only buy pen holders to buy exactly 30. If Teacher Zhang buys a folder and a pen holder, it will cost 92.5 yuan. Please do the math, how much money did Mr. Zhang bring to buy office supplies?
张老师带了一些钱去给学校购买办公用品．如果用这些钱只买文件夹正好买20个，只买笔筒正好买30个．若张老师买一个文件夹和一个笔筒，则要花92.5元．请你算一算，张老师一共带了多少钱去买办公用品？
<gadget id="calculator">92.5 * 30</gadget>
<output>2_775</output>

<gadget id="calculator">20 + 30</gadget>
<output>50</output>

<gadget id="calculator">2_775 / 50</gadget>
<output>111/2 = around 55.5</output>

<gadget id="calculator">(111/2) * 20</gadget>
<output>1_110</output>

<result>1_110</result>