The school bought 3 boxes of ballpoint pens, 12 in each box, and the total cost was 216 yuan. How much is each ballpoint pen on average?
学校买了3盒圆珠笔，每盒12支，一共用了216元，平均每支圆珠笔多少钱？
<gadget id="calculator">216 / 3 / 12</gadget>
<output>6</output>

<result>6</result>