An engineering team builds a road. It repairs 20% of the total length on the first day and 300 meters on the second day. At this time, the ratio of the remaining meters to the repaired meters is 11:9. How many meters is the total length of this road?
某工程队修一条路，第一天修了全长的20%，第二天修了300米，这时剩下的与已修的米数比是11：9，这条路全长多少米？
<gadget id="calculator">11 + 9</gadget>
<output>20</output>

<gadget id="calculator">9 / 20</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(9/20) - (1/5)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">300 / (1/4)</gadget>
<output>1_200</output>

<result>1_200</result>