A section of road can be completed by team A in 20 days alone, and by team B in 30 days. If the two teams work together, they can repair up to 20 meters per day. As a result, it only takes 8 days to complete the repair. The total length of this section of road How many meters is it?
一段公路，由甲队独修20天修完，由乙队独修30天可修完，如果两队合修，每天最多可修20米，结果只用8天修完，这段路全长是多少米？
<gadget id="calculator">20 * 8</gadget>
<output>160</output>

<gadget id="calculator">1 / 20</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">1 / 30</gadget>
<output>1/30 = around 0.033333</output>

<gadget id="calculator">(1/20) + (1/30)</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(1/12) * 8</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 - (2/3)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">160 / (1/3)</gadget>
<output>480</output>

<result>480</result>