There are two road-building teams working together to build a section of road. Team A builds 250 meters per day, which is 30 meters less than team B per day. The two road-building teams complete the project in 8 days. How many meters is this road?
有两个筑路队合修一段公路，甲队每天修250米，比乙队每天少修30米，这两个筑路队8天完工．这条公路长多少米？
<gadget id="calculator">250 + 250 + 30</gadget>
<output>530</output>

<gadget id="calculator">530 * 8</gadget>
<output>4_240</output>

<result>4_240</result>