Wang Jun bought a tube of badminton. There are 12 in a tube. The total cost is 21.6 yuan, about how much is one.
王军买了一筒羽毛球，一筒有12个，一共花了21.6元，一个大约多少元．
<gadget id="calculator">21.6 / 12</gadget>
<output>1.8</output>

<result>1.8</result>