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Thread: which day of the month is my birthday ?

  1. #1
    Contributing Member
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    which day of the month is my birthday ?

    As my birthday approaches I start to collect leaves - a little bizarre perhaps, but I enjoy it! On the first day of the month I collect one leaf, on the second day I collect two and so on. So by my birthday I will have collected 378 leaves altogether. On which day of the month is my birthday?

    --------------------
    suresh


  2. #2
    Expert Member
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    Dec 2006
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    Re: which day of the month is my birthday ?

    Its on 28th.
    right?


  3. #3
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    Re: which day of the month is my birthday ?

    No barbie...Its not a correct answer...

    ----------------
    suresh


  4. #4
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    Re: which day of the month is my birthday ?

    Oh.. sorry.
    Its 27th of that month.


  5. #5
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    Re: which day of the month is my birthday ?

    yes; 27 is the answer.

    folllow the rule:

    N(N+1)=2*total sum

    Regards,
    Brijesh Jain
    ---------------------------------------------------------
    Connect with me on Skype: jainbrijesh
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  6. #6
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    Re: which day of the month is my birthday ?

    Jainbrijesh and Barbie both of them correct...


    The formula is n(n+1)/2(sum of first n numbers) = 378

    ----------------
    suresh


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