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Pamela and David walk on the same track. It tqkes Pamela 9 minutes and David 6 minutes to walk one lap.If they start walking at the same time, how many laps will each have walked when they cross the starting point together for the first time?

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  1. At 18 min, one has went around twice, and the other three times. How did I know that?

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    bobpursley

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