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Math Help - Brain Teaser Posted

  1. #1
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    Question Brain Teaser Posted

    LOGIC: If you count from 1 to 100, how many series of 7's and how many 7's will you pass on the way?


    A friend posted this brain teasser and was wondering if someone here can explain it in Lamen's terms as if I was 7 years old. LOL

    I know the how many 7's i pass between 1 to 100. Its 20.

    But the series - has me stumped.

    What is the answer & more importantly how do you write it?
    Thanks in advance.
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  2. #2
    Super Member TheChaz's Avatar
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    re: Brain Teaser Posted

    What do you mean by "series"?
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