The two teams built a road together. The original plan was to complete it in 6 days. In fact, each team repaired 20 meters more than the original plan. As a result, the task was completed in 5 days. How many meters is this road in total?
两队共修一条公路，原计划6天完成，实际每队都比原计划多修20米，结果5天完成了任务，这条公路共有多少米？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/5) - (1/6)</gadget>
<output>1/30 = around 0.033333</output>

<gadget id="calculator">20 / (1/30)</gadget>
<output>600</output>

<result>600</result>