Two buses leave the station a the 9:00am Bus A does a 40 minute route continuously Bus B does a 28 minute loop continuously. At what time to the both leave the station again at the same time?
9:40, 10:20, 11:00, 11:40, 12:20, 13:00, 13:40 //// 9:28, 9:56, 10:24, 11:12, 11:40 Answer: 11:40