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标题: GWD-13-35 题我选E 答案选A WHY [打印本页]

作者: freesimens 时间: 2005-7-4 12:49 标题: GWD-13-35 题我选E 答案选A WHY

Stations X and Y are connected by two separate, straight, parallel rail lines that are 250 miles long. Train P and train Q simultaneously left Station X and Station Y, respectively, and each train traveled to the other’s point of departure. The two trains passed each other after traveling 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 speed of 70 miles per hour.

(2) Train Q averaged a speed of 55 miles per hour for the entire trip.

作者: conquer 时间: 2005-7-4 12:54

P在两个小时跑了70x2=140 miles, 两个车站距离250miles，你说哪个车离终点近呢?

作者: founder 时间: 2005-7-4 22:12

up!!!!!!!!!!!!!!!!![em05]

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