For the large-scale gymnastics performance, there are 25 rows in total, with 36 people in each row. If 50 people wear the same color of clothes, how many different colors of clothes should be prepared?
大型体操表演，一共排了25排，每排36人．每50人穿同一种颜色的衣服，一共要准备多少种不同颜色的衣服？
<gadget id="calculator">25 / 50</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">36 * (1/2)</gadget>
<output>18</output>

<result>18</result>