It is planned to build a 360-meter-long road, and 25% of the road was built in the first 5 days. According to this calculation, how many days will it take to finish the road?
计划修一条360米长的公路，前5天修了这条公路的25%，照这样计算，修完这条公路还要多少天？
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/4) / 5</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">1 / (1/20)</gadget>
<output>20</output>

<gadget id="calculator">20 - 5</gadget>
<output>15</output>

<result>15</result>