In the process of renovating the old playground with an area of 1080m**2, a middle school built a 400-meter-long runway. After the construction started, it was repaired 10 meters more than the original plan every day. As a result, the task was completed 2 days earlier than the original plan. Ask the original plan How many meters do you repair every day?
某中学在改造面积为1080m**2的旧操场的过程中，修建一条400米长的跑道，开工后每天比原计划多修10米，结果比原计划提前2天完成了任务，求原计划每天修多少米？
<result>40</result>