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Math Help - Descending Digits

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    Question Descending Digits

    How many 3 digit numbers have different digits in descending order (such as 732 or 960)?

    Any help is appreciated!
    Thanks!
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  2. #2
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    Quote Originally Posted by live_laugh_luv27 View Post
    How many 3 digit numbers have different digits in descending order (such as 732 or 960)?
    HINT: Any selection of three digts can be put into descending order.
    How many ways can one choose three different digits?
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