There are 84 members in the school chorus team, which is 6 people less than three times the number of the track and field team. How many people are there in the school track and field team?
学校合唱队有84人，比田径队人数的3倍少6人，学校田径队有多少人？
<gadget id="calculator">84 + 6</gadget>
<output>90</output>

<gadget id="calculator">90 / 3</gadget>
<output>30</output>

<result>30</result>