Two teams, A and B, are building a 2,000-meter-long road. Team A builds 25 meters a day, and Team B builds 15 meters a day. The two teams work together at the same time. How many days can they complete?
甲乙两队修一条长2000米的道路，甲队每天修25米，乙队每天修15米，两队同时合修，多少天可以修完？
<gadget id="calculator">25 + 15</gadget>
<output>40</output>

<gadget id="calculator">2_000 / 40</gadget>
<output>50</output>

<result>50</result>