It takes 8 minutes to saw a cylindrical steel pipe into 5 sections. According to this calculation, how many minutes will it take if sawing into 10 segments?
把一根圆柱形钢管锯成5段需要8分钟．照这样计算，如果锯成10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">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">2 * 9</gadget>
<output>18</output>

<result>18</result>