Xiao Ming bought a set of "Blue Cat" with a total of 4 copies at a price of 67.2 yuan. How much is the average price of each copy?
小明购买一套《蓝猫》共4本，售价67.2元，平均每本售价多少元？
<gadget id="calculator">67.2 / 4</gadget>
<output>16.8</output>

<result>16.8</result>