There are 47 students in class 3 and 5, and 46 students in class 3 and 6. Students in these two classes have to participate in three interest classes: calligraphy, dance, and model airplanes. How many people are there on average in each interest class?
三5班有47人，三6班有46人，这两个班的同学要参加书法、舞蹈、航模3个兴趣班，平均每个兴趣班有多少人？
<gadget id="calculator">47 + 46</gadget>
<output>93</output>

<gadget id="calculator">93 / 3</gadget>
<output>31</output>

<result>31</result>