Students line up to do exercises, if there are 20 people in each row, there should be 30 rows in total; if there are 25 people in each row, how many rows should be arranged in total?
同学们排队做操，如果每排20人，一共要排成30排；如果每排25人，一共要排成多少排？
<gadget id="calculator">30 / 25</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">20 * (6/5)</gadget>
<output>24</output>

<result>24</result>