There are 480 boys in Xincun Primary School, which is 60 less than the number of students in the whole school (3/5). What is the number of girls in this school?
新村小学有男生480人，比全校学生人数的(3/5)少60人，这个学校女生的人数是多少人
<gadget id="calculator">480 + 60</gadget>
<output>540</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">540 / (3/5)</gadget>
<output>900</output>

<gadget id="calculator">900 - 480</gadget>
<output>420</output>

<result>420</result>