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22 September, 14:33

Beginning at 8:30 A. M., tours of the national capitol and the White House begin at a tour agency. Tours for the national capital leave very 15 minutes. Tours for the White House leave every 20 minutes. How often do the tours leave at the same time?

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  1. 22 September, 14:53
    0
    When do the tours stop?
  2. 22 September, 14:57
    0
    Answer: It means the tours leave at the same time after every 1 hour.

    Step-by-step explanation:

    Since we have given that

    Number of every minutes that tours for the national capital leave = 15 minutes

    Number of every minutes that tours for the White house leave = 20 minutes

    We need to find the number of minutes, the tours leave at the same time.

    So, to leave for the same time = L. C. M. of 15 and 20 = 60 minutes

    Hence, It means the tours leave at the same time after every 1 hour.
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