Xiaoming, Xiaolong, Xiaojun, and Xiaoqiang wrote 50 slogans in 2.5 hours. How many slogans did each person write per hour on average?
小明、小龙、小军、小强4人用了2.5小时写了50幅标语，平均每人每小时写多少幅标语？
<gadget id="calculator">50 / 2.5 / 4</gadget>
<output>5</output>

<result>5</result>