The road repair team wanted to repair a section of road. On the first day, they repaired the full length (1/4), and on the second day, they repaired 70 meters. The ratio of the number of meters repaired in two days to the length of this section of road is 3:5. how long?
修路队要修一段公路，第一天修了全长的(1/4)，第二天修了70米，两天修的米数与这段公路的长度的比是3：5，这段公路有多长？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

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

<gadget id="calculator">(3/5) - (1/4)</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">70 / (7/20)</gadget>
<output>200</output>

<result>200</result>