Two engineering teams, A and B, are working together on a 3000m long road. They are constructing from both ends at the same time. Team A repairs 85m every day, and team B repairs 65m every day. How many days will it take to complete the road?
甲乙两个工程队同修一条长3000m的公路，它们从两端同时施工，甲队每天修85m，乙队每天修65m，修完这条公路需要几天？
<gadget id="calculator">85 + 65</gadget>
<output>150</output>

<gadget id="calculator">3_000 / 150</gadget>
<output>20</output>

<result>20</result>