It takes 8 minutes to divide a piece of wood into 5 sections, how many minutes will it take if it is divided into 9 sections?
一根木据成5段需8分钟，如果据成9段需要多少分钟．
<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">8 / 4</gadget>
<output>2</output>

<gadget id="calculator">9 - 1</gadget>
<output>8</output>

<gadget id="calculator">2 * 8</gadget>
<output>16</output>

<result>16</result>