The road construction team wants to build a road, and 100 meters have been repaired, and the rest is 20 meters more than 40% of the total length. How long is the total length of this road?
修路队要修一条路，已经修好了100米，剩下的比全长的40%还多20米，这条路全长多少米？
<gadget id="calculator">100 + 20</gadget>
<output>120</output>

<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">120 / (3/5)</gadget>
<output>200</output>

<result>200</result>