A construction team wants to install a 660-meter-long pipeline, and 176 meters have been installed in 4 days. According to this calculation, how many days will it take to install this pipeline?
一个施工队要安装一条长660米长的管道，4天已装了176米．照这样计算，安装这条管道共需要多少天？
<gadget id="calculator">176 / 4</gadget>
<output>44</output>

<gadget id="calculator">660 / 44</gadget>
<output>15</output>

<result>15</result>