A factory has 480 female workers, the number of female workers is three times the number of male workers. How many more female workers than male workers?
某厂有女工480人，女工人数是男工人数的3倍．女工比男工多多少人．
<gadget id="calculator">480 / 3</gadget>
<output>160</output>

<gadget id="calculator">480 - 160</gadget>
<output>320</output>

<result>320</result>