To build a road, 20% of the entire road was repaired on the first day, and the same amount was repaired on the second day as on the first day. At this time, there are still 360 meters unrepaired. How many meters is the total length of this road?
修一条公路，第一天修了全部的20%，第二天修的和第一天的同样多，这时还剩下360米未修，这条公路全长多少米？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5) - (1/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">360 / (3/5)</gadget>
<output>600</output>

<result>600</result>