The length of the path around the lake in the park is1200m. Xiao Gang and Xiao Ming are practicing running on the path around the lake. If two people start from the same point at the same time and run

The length of the path around the lake in the park is1200m. Xiao Gang and Xiao Ming are practicing running on the path around the lake. If two people start from the same point at the same time and run in the opposite direction, 3 minutes. Suppose: Xiao Gang is x m/min and Xiao Ming is y m/min, and get the equations from the meaning of the question.

3(X+Y)= 1200

30(X-Y)= 1200

arrange

X+Y=400

X-Y=40

Solution: X=220, Y= 180.