标题: 陈向东一道数学题 求助各位大神 [打印本页] 作者: mnmicy 时间: 2020-10-8 22:25 标题: 陈向东一道数学题 求助各位大神 Cars X and Y were traveling together on a straight road at a constant speed of 55 miles per hour when car X stopped for 5 minutes. If car Y continued to travel at 55 miles per hour, how many minutes from the time that car X resumed traveling did it take car X traveling at 60 miles per hour to catch up with car Y ？ (Assume that the time for car X to slow down and speed up was negligible.)