There are 135 employees in a certain agency, which is 25% smaller than before. How many people are there in the original staff? What is the column
某机关现有工作人员135人，比原来精简了25%，原有工作人员多少人？列式是多少
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">135 / (3/4)</gadget>
<output>180</output>

<result>180</result>