Mathematics, 10.03.2020 00:48, edna27

Amy and Chang walk around a track. Any walks each lap in 9 minutes. Chang walks each lap in 12 minutes. The two of them begin at the the starting line at the same time. They walk until they meet up again at the starting line. How many laps did Amy complete.

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Amy and Chang walk around a track. Any walks each lap in 9 minutes. Chang walks each lap in 12 minut...