The students performed group gymnastics. They were originally arranged in 24 rows, with 20 people in each row. After the formation is changed, there are 5 fewer people in each row than before. How many rows are there?
同学们表演团体操，原来排成24行，每行20人．队形变化后，每行比原来减少了5人，排成了多少行？
<gadget id="calculator">20 - 5</gadget>
<output>15</output>

<gadget id="calculator">24 / 15</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">20 * (8/5)</gadget>
<output>32</output>

<result>32</result>