Teacher Wang bought 2 boxes of pens for 180 yuan, and each box contained 6 pens. How much is an average pen?
王老师用180元买了2盒钢笔，每盒里有6枝钢笔．平均每枝钢笔多少钱？
<gadget id="calculator">180 / 2 / 6</gadget>
<output>15</output>

<result>15</result>