wooden stick of the same size takes the same amount of time to cut each time. It takes 10 minutes to saw it into 6 sections, how many minutes will it take to saw it into 4 sections?
一根大小相同的木棒，每锯断一次所用时间一样．把它锯成6段要10分钟，锯成4段需要多少分钟．
<gadget id="calculator">6 - 1</gadget>
<output>5</output>

<gadget id="calculator">10 / 5</gadget>
<output>2</output>

<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">2 * 3</gadget>
<output>6</output>

<result>6</result>