Xiao Ming and Xiao Mei start from one end of the runway at the same time and run in the same direction. The runway is 200 meters long. Xiao Ming runs 60 meters per minute on average, how many meters per minute does Xiao Mei run on average?
小明和小美同时从跑道的一端出发同向而跑，这条跑道长200米，小明跑到另一端后马上返回，在途中与小美相遇，从出发至相遇一共用了4分钟，已知小明平均每分钟跑60米，小美平均每分钟跑多少米？
<result>80</result>