Teacher Wang spent 80 yuan to buy 4 boxes of pens as prizes, 5 pens per box, please help Teacher Wang to calculate, how much is each pen?
王老师花了80元钱买了4盒钢笔作为奖品，每盒5枝，请你帮王老师算一算，每支钢笔多少钱？
<gadget id="calculator">80 / 4 / 5</gadget>
<output>4</output>

<result>4</result>