Master Chen takes 12 minutes to saw a piece of wood into three sections, how many minutes does it take to saw the same piece of wood into five sections?
陈师傅把一根木头锯成三段需要12分钟，把同样的木头锯成5段，需要多少分钟．
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">12 / 2</gadget>
<output>6</output>

<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">6 * 4</gadget>
<output>24</output>

<result>24</result>