It takes 24 minutes to saw a piece of wood into 3 sections. How many minutes does it take to saw once?
一根木料锯成3段，共用时24分钟，锯一次用多少分钟．
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">24 / 2</gadget>
<output>12</output>

<result>12</result>