Students participating in the military training parade, originally there were 20 people in each row, and they could stand in 24 rows; after the formation change, 10 more people in each row, how many rows can they stand in?
同学们参加军训会操，原来每行20人，可以站24行；队形变化后，每行多站10人，可以站多少行？
<gadget id="calculator">20 + 10</gadget>
<output>30</output>

<gadget id="calculator">24 / 30</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">20 * (4/5)</gadget>
<output>16</output>

<result>16</result>