A primary school carries out the second classroom activity. There are 20 people in the art group, which is 5 people less than the model group (5/6). How many people are there in the model group?
某小学开展第二课堂活动，美术小组有20人，比航模小组人数的(5/6)少5人，航模小组有多少人？
<gadget id="calculator">20 + 5</gadget>
<output>25</output>

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">25 / (5/6)</gadget>
<output>30</output>

<result>30</result>