It takes 25 minutes to cut a piece of wood into 6 sections, how long does it take to cut it into 5 sections?
一根木材截成6段要用25分钟，那么截成5段需要多少时间？
<gadget id="calculator">6 - 1</gadget>
<output>5</output>

<gadget id="calculator">25 / 5</gadget>
<output>5</output>

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

<gadget id="calculator">5 * 4</gadget>
<output>20</output>

<result>20</result>