The ratio of the number of boys and girls in the swimming team is 3:2. There are 12 boys and how many girls are there?
游泳队中男、女生人数的比是3：2，其中男生有12人，女生有多少人？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">12 * (2/3)</gadget>
<output>8</output>

<result>8</result>