Mark can clean a house in 7 hours. When he cleans the same house with Wendy, it takes them 3 hours to clean the house. How long
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Top is the passenger train
bottom is the freight
make sure you add 48+8=56
there are 56 trains that went to the station in a 12 hour period.
bottom is the freight
make sure you add 48+8=56
there are 56 trains that went to the station in a 12 hour period.