The road repair team repaired a section of road with a length of 1,200 meters. It took 4 days to repair (1/5) of this section of road. According to this calculation, how many days will it take to complete the road?
修路队修一段长1200米的公路，修了4天，修了这段公路的(1/5)．照这样计算，修完这段公路还需要多少天？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

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

<gadget id="calculator">(4/5) / (1/20)</gadget>
<output>16</output>

<result>16</result>