There are 135 girls in the school interest group, three times that of boys. How many students are there in the school interest group?
学校兴趣小组有女生135人，是男生的3倍．学校兴趣小组一共有学生多少人？
<gadget id="calculator">135 / 3</gadget>
<output>45</output>

<gadget id="calculator">45 + 135</gadget>
<output>180</output>

<result>180</result>