To build a road, Team A alone completed the repair in 12 days, and Team B repaired 200 meters per day. The two teams started to build the road at the same time. When the road was completed, the workload ratio of Team A and Team B was 2:1. This road has how long? (answer in two ways)
修一条公路，甲队单独修12天完成，乙队每天修200米，两队同时开工合修这条公路，完工时，甲、乙两队工作量的比是2：1，这条路有多长？(用两种方法解答)
<gadget id="calculator">2 * 200</gadget>
<output>400</output>

<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">400 / (1/12)</gadget>
<output>4_800</output>

<result>4_800</result>