There are six teachers in the third grade group. Their ages are 28, 33, 36, 40, 25, and 24. What is the average age of these six teachers?
三年级组有六位老师，他们的年龄分别是28岁、33岁、36岁、40岁、25岁、24岁，这六位老师的平均年龄是多少岁？
<gadget id="calculator">28 + 33 + 36 + 40 + 25 + 24</gadget>
<output>186</output>

<gadget id="calculator">186 / 6</gadget>
<output>31</output>

<result>31</result>