标题: 求大神解析这道OG上的数学题 [打印本页] 作者: Jessie小潘潘 时间: 2019-11-2 14:17 标题: 求大神解析这道OG上的数学题 Station X and Y are connected by two seperate, straight, parallel rail lines that are 250 miles long. Train P and Q simultaneously left station X and Y, respectively, and each train traveled to the other's point of departure. The two train passed each other after travelling for 2 hours. When the two trains passed, which train was nearer to its destination?
1. at the time when the two trains passed, train P had averaged a spped of 70 miles per hour
2. Train Q averaged a speed of 55 miles per hour for the entire trip