To build a section of road, the total length (1/8) is 40 meters less on the first day, and 250 meters on the second day. At this time, the ratio of the unrepaired meters to the repaired meters is 1:3. The length of this section of road How much rice?
修一段公路，第一天修了全长的(1/8)少40米，第二天修了250米，这时未修的米数与已修的米数比是1：3，这段公路长多少米？
<gadget id="calculator">250 - 40</gadget>
<output>210</output>

<gadget id="calculator">1 + 3</gadget>
<output>4</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(3/4) - (1/8)</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">210 / (5/8)</gadget>
<output>336</output>

<result>336</result>