A road construction team has built a road, 40% of the total length has been repaired, and there are still 240 meters to be repaired. How long is this road in meters?
某修路队修一条公路，已修了全长的40%，还有240米没有修．这条公路全长有多少米？
<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">240 / (3/5)</gadget>
<output>400</output>

<result>400</result>