The students rehearse gymnastics. There are 30 people standing in each row, exactly 16 rows. If there are 24 rows, how many people stand in each row?
同学们排练体操，每行站30人，正好排16行，如果排24行，每排站多少人？
<gadget id="calculator">16 / 24</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">30 * (2/3)</gadget>
<output>20</output>

<result>20</result>