The students do radio exercises, 40 people stand in each row, and they can stand in 30 rows. If 24 people stand in each row, how many rows can they stand?
同学们做广播操，每行站40人，可站30行．如果每行站24人，可站多少行？
<gadget id="calculator">40 * 30</gadget>
<output>1_200</output>

<gadget id="calculator">1_200 / 24</gadget>
<output>50</output>

<result>50</result>