The third-grade students went to work in the tea garden. There are 82 girls and 78 boys. 4 students are divided into groups, how many groups can be divided in total?
三年级的学生去茶园里劳动．女生有82人，男生有78人．4名学生分成一组，一共可以分多少组？
<gadget id="calculator">82 + 78</gadget>
<output>160</output>

<gadget id="calculator">160 / 4</gadget>
<output>40</output>

<result>40</result>