every fourth visitor to a museum gets a free bumper sticker every tenth visitor gets a free keychain which visitor each day will be the firs

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every fourth visitor to a museum gets a free bumper sticker every tenth visitor gets a free keychain which visitor each day will be the first to get both the bumper sticker and the keychain

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    2021-10-11T03:17:25+00:00

    factors:

    4=2*2

    10 = 2*5

    Least common multiple: 2*2*5 = 20

    The 20th visitor will get a keychain and a bumpersticker

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