Two road construction teams, A and B, are building a section of road from both ends at the same time, and they meet at a distance of 20 meters from the midpoint. It is known that team A has built (3/5) the full length of the road. What is the total length of this section of road in meters?
甲乙两个修路队同时从两端修一段公路，在距离中点20米处相遇，已知甲队修了全长的(3/5)，这段路全长是多少米．
<gadget id="calculator">20 * 2</gadget>
<output>40</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(3/5) - (2/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">40 / (1/5)</gadget>
<output>200</output>

<result>200</result>