Search found 829 matches

by nafistiham
Sat Feb 02, 2013 12:28 am
Forum: Introductions
Topic: Trying to say something
Replies: 1
Views: 2239

Re: Trying to say something

Welcome to the forum.
:) :)
As you are new, please read the rules and learn LaTex as well.
good luck.
by nafistiham
Thu Jan 31, 2013 11:45 am
Forum: Higher Secondary Level
Topic: Secondary and Higher Secondary Marathon
Replies: 127
Views: 58282

Re: Secondary and Higher Secondary Marathon

Problem $\boxed{35}$ Find all $5$-digit natural numbers $n$ such that $n^2$ ends in all the same as $n$. Source: Book 'Olympiad Somogro'(Bangla) Can you please tell us what you meant by all the same as $n$? If it meas only the last digit,then the last digit of $n$ will be any of $0,1,5,6$. The rema...
by nafistiham
Wed Jan 30, 2013 9:59 pm
Forum: Social Lounge
Topic: Any Way
Replies: 11
Views: 5917

Re: Any Way

I'll send it as you said. If they select according to regional result (which should be ) I'll have no chance. Last year I was regional champ when in class 9 and this year though being older, became 2nd Runner-up. And I think 2nd runners-up are not eligible. :-( Let me see what happens... or I have ...
by nafistiham
Tue Jan 29, 2013 11:09 am
Forum: National Math Olympiad (BdMO)
Topic: Let us help one another preparing for BdMO national 2013
Replies: 12
Views: 6776

Let us help one another preparing for BdMO national 2013

Divisionals are over. So, around a thousand participants are preparing for national. This topic is just as its name. I request interested people to join with me. I plan to post problems which are just our national level. neither IMO nor divisional. I believe the practice for contest works best of it...
by nafistiham
Tue Jan 29, 2013 10:43 am
Forum: Social Lounge
Topic: Any Way
Replies: 11
Views: 5917

Re: Any Way

If anyone knows something about S.S.C. camp, kindly inform me. Perhaps the ex-campers can easily go there,but if I have to give a test (after SSC) to enter into it I'm ready. Perhaps like many others I'm not going to participate in NMO. I have the form & still thinking whether I should fill it up o...
by nafistiham
Mon Jan 28, 2013 11:57 pm
Forum: Social Lounge
Topic: info.
Replies: 4
Views: 2510

Re: info.

kfoozminus wrote:আর 'সজল-কাজল স্মৃতি পুরষ্কার' দেওয়া হয় জাতীয় উৎসবে অংশগ্রহণকারী বয়সে সবচে' ছোট প্রতিযোগীকে... :)
আপু, তাই কি ? এইটা তো প্রাইমারীতে যে সেকেন্ড হয়, তাকে দেওয়া হয় বলে জানি ।
by nafistiham
Mon Jan 28, 2013 11:55 pm
Forum: Social Lounge
Topic: Negative Marking
Replies: 7
Views: 3328

Re: Negative Marking

@Adib. It happens what you said. Yesterday @MO, in first 20 minutes I solved 2 probs, a logarithm and a problem on number theory. I noticed the student sitting beside me of same category(actually the other student in the middle was absent) copying my two answers. Then I looked at his rough paper. T...
by nafistiham
Mon Jan 28, 2013 11:51 pm
Forum: Social Lounge
Topic: May We Post Regional Problems?
Replies: 2
Views: 2970

Re: May We Post Regional Problems?

As, January $25$ is gone. I think, we can post problems. But, still, it is better to wait until moon vai or other olders say something.
by nafistiham
Mon Jan 28, 2013 10:00 am
Forum: Secondary Level
Topic: Congruence
Replies: 10
Views: 5339

Re: Congruence

Aditi Acharjee wrote:thank u!:D
I was having trouble with the 'থ্রি সমান চিহ্নs'!!! :D
Actually it is "ওয়ান এন্ড হাফ সমান চিহ্ন" or "থ্রি মাইনাস চিহ্নs" :)
by nafistiham
Mon Jan 28, 2013 9:58 am
Forum: Social Lounge
Topic: Negative Marking
Replies: 7
Views: 3328

Re: Negative Marking

The examiners are not that cruel! :) Well, you see. Negative marking is only applied where you can answer without knowing or doing anything, and the examiners have no proof. Like in an objective test, you can answer all 'A's and, mathematically $25%$ should be ok. But, here, you solve and do it in ...