A total of 90 students in the third grade participated in the tug-of-war competition. They were divided into 3 teams on average, and each team was divided into 3 groups on average. How many students are there in each group?
三年级共有90名同学参加拔河比赛，平均分成3队，每队又平均分成3个小组，每个小组有多少名同学？
<gadget id="calculator">90 / 3 / 3</gadget>
<output>10</output>

<result>10</result>