To build a road, 25% of the total length was built on the first day, and 30% of the total length was repaired on the second day, and the repair was 60 meters shorter on the first day than on the second day. How long is this road in meters?
修一条公路，第一天修了全长的25%，第二天修了全长的30%，第一天比第二天少修了60米，这条路全长多少米？
<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(3/10) - (1/4)</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">60 / (1/20)</gadget>
<output>1_200</output>

<result>1_200</result>