Dad buys a pair of badminton rackets and 4 badmintons for 60 yuan. A pair of badminton rackets is 48 yuan. How much is a badminton?
爸爸买一副羽毛球拍和4只羽毛球，共用去60元，一副羽毛球拍48元，一只羽毛球多少元？
<gadget id="calculator">60 - 48</gadget>
<output>12</output>

<gadget id="calculator">12 / 4</gadget>
<output>3</output>

<result>3</result>