The ratio of the number of boys and girls in Class 1 is 9:8. It is known that there are 27 boys and how many girls are there.
六1班男女生人数的比是9：8，已知男生27人，女生有多少人．
<gadget id="calculator">27 / 9</gadget>
<output>3</output>

<gadget id="calculator">3 * 8</gadget>
<output>24</output>

<result>24</result>