The factory has 132 workers, and has recruited some more, and now there are 162 workers. How many workers have the factory recruited? (List the equations containing the unknown X, and then answer)
工厂有工人132名，又招收了一些，现在有162名，工厂招收了工人多少名？(列出含未知数X的等式，再解答)
<gadget id="calculator">162 - 132</gadget>
<output>30</output>

<result>30</result>