There are 36 boys and 24 girls in the mischievous class. There are 3 people in each group. How many groups can they be divided into?
淘气班上男生有36人，女生有24人，每3人一组，一共可以分成多少个小组？
<gadget id="calculator">24 + 36</gadget>
<output>60</output>

<gadget id="calculator">60 / 3</gadget>
<output>20</output>

<result>20</result>