Two teams participate in a mathematics competition. The average score of team A is 75 points, the average score of team B is 73 points, and the average score of the two teams is 73.5 points. It is known that team B has 6 more people than team A, so how many people are there in team B?
两个队参加数学对抗赛，甲队的平均分是75分，乙队的平均分是73分，两队同学的平均分是73.5分．已知乙队比甲队多6人，那么乙队有多少人？
<gadget id="calculator">3 + 6</gadget>
<output>9</output>

<result>9</result>