Team A said: Our team repairs 720 meters of roads every month. Team B said: Our team repairs 800 meters of roads every month. The two teams are working at the same time, and it will be opened in 6 months. How long is this road?
甲队说：我们队每月修720米公路．乙队说：我们队每月修800米公路．两队分别同时施工，6个月开通，这条公路长多少米？
<gadget id="calculator">720 + 800</gadget>
<output>1_520</output>

<gadget id="calculator">1_520 * 6</gadget>
<output>9_120</output>

<result>9_120</result>