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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.)
A.5
B.30
C.45
D.55(对)
E.60
各位大神 能否帮忙给解答一下。万分感谢!!!
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