For a document, my mother has already typed 1,500 words, accounting for exactly 60% of the total number of words. How many words are there in this document?
一份文件，妈妈已经打了1500字，正好占总字数60%，这份文件一共有多少字？
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1_500 / (3/5)</gadget>
<output>2_500</output>

<result>2_500</result>