BdMO National 2012: Higher Sec, Sec, Junior 01, Primary 02

Discussion on Bangladesh Mathematical Olympiad (BdMO) National
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nafistiham
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Re: BdMO National 2012: Higher Sec, Sec, Junior 01, Primary

Unread post by nafistiham » Wed Feb 29, 2012 11:32 am

this actually depends on what we define.
if day starts when it is $12.00.00$
then the day Ruponti gets the $24^{th}$ letter will be the $26^{th}$ day
on the other hand
if day starts when it is $12.00.01$
then the day Ruponti gets the $24^{th}$ letter will be the $25^{th}$ day
as far as I know both the logics were granted in the BdMO
but, the logic had to be definite. :D
\[\sum_{k=0}^{n-1}e^{\frac{2 \pi i k}{n}}=0\]
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itsnafi
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Re: BdMO National 2012: Higher Sec, Sec, Junior 01, Primary

Unread post by itsnafi » Sun Mar 25, 2012 9:47 pm

Agree with munim? yeah,i'm.........

itsnafi
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Re: BdMO National 2012: Higher Sec, Sec, Junior 01, Primary

Unread post by itsnafi » Sun Mar 25, 2012 9:52 pm

Hey Abid,I can't get most of the u've written.
asholei kingkortobbobimur..........

muktadir
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Re: BdMO National 2012: Higher Sec, Sec, Junior 01, Primary

Unread post by muktadir » Tue May 29, 2012 9:57 am

যদি রুপন্তি ২৪ ঘন্টা পর পর চিঠিগুলু পেত , তবে প্রথম দিনে যে চিঠি পাঠানো হয় তা রুপন্তি ২য় দিনে পায়। এভাবে ২৫ তম দিনে যে চিঠি পায় তা হত সুব্রতর ২৪ তম চিঠি। কিন্তু রুপন্তি চিঠি গুলু ২৫ ঘন্টা পর পর পায়। তাই ২৫ তম দিনে যে চিঠি পায় তা সুব্রতর ২৩ তম চিঠি।

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MD. Joynul Islam
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Re: BdMO National 2012: Higher Sec, Sec, Junior 01, Primary

Unread post by MD. Joynul Islam » Sat Jul 14, 2012 8:39 pm

২৫ তম দিন টা যদি রুপন্তির চিঠি পাওয়া শুরু থেকে ২৫ তম হয়, তবে ২৫ তম দিনে রুপন্তি ১টি চিঠি পাবে। যদি সুব্রত রাত্১২।০০
এ চিঠি পাঠান শুরু করে

MD ALI HOSSAIN ASIF
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Re: BdMO National 2012: Higher Sec, Sec, Junior 01, Primary

Unread post by MD ALI HOSSAIN ASIF » Thu Aug 01, 2013 9:12 pm

on 25th day ruponti recieves the 24th letter.

Asif Hasan
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Re: BdMO National 2012: Higher Sec, Sec, Junior 01, Primary

Unread post by Asif Hasan » Sun Oct 27, 2013 12:00 am

he sends at 12 am and she receives the next day 1 am.......but that day subrata sends letter in 12 am....??

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Phlembac Adib Hasan
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Re: BdMO National 2012: Higher Sec, Sec, Junior 01, Primary

Unread post by Phlembac Adib Hasan » Mon Oct 28, 2013 9:56 pm

Asif Hasan wrote:he sends at 12 am and she receives the next day 1 am.......but that day subrata sends letter in 12 am....??
This problem has multiple answers and based on their respective grounds, all of them are correct. As far I remember, 3 different answers were accepted in the olympiad.
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prantick
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Re: BdMO National 2012: Higher Sec, Sec, Junior 01, Primary

Unread post by prantick » Sun Jan 11, 2015 11:51 am

letter recives on 25th day

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