To build a road, 20% of it was repaired in the first 5 days. According to this calculation, how many days will it take to complete the road?
修一条公路，前5天修了它的20%，照这样计算，修完这条路一共要多少天？
<gadget id="calculator">1 / 25</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">1 / (1/25)</gadget>
<output>25</output>

<result>25</result>