Among the extracurricular activities, there are 25 people in the art group from classes 6 and 3, which is 1/4 more than the model group. How many people are there in the aircraft model team of Class 6?3?
课外活动中，六•三班参加美术小组的有25人，比参加航模小组多(1/4)．六•三班参加航模小组有多少人？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">25 / (5/4)</gadget>
<output>20</output>

<result>20</result>