## Dhaka Divisional Higher Secondary 2011

Forum rules
Please don't post problems (by starting a topic) in the "X: Solved" forums. Those forums are only for showcasing the problems for the convenience of the users. You can always post the problems in the main Divisional Math Olympiad forum. Later we shall move that topic with proper formatting, and post in the resource section.
Moon
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### Dhaka Divisional Higher Secondary 2011

Finally BdMO 2011 problem set is available. Starting from the Higher Secondary.

Challenge yourself and have fun!
Attachments
dhaka_Higher secondary 2011.pdf
Dhaka Higher Secondary Divisional 2011
"Inspiration is needed in geometry, just as much as in poetry." -- Aleksandr Pushkin

learn how to write equations, and don't forget to read Forum Guide and Rules.

Hasib
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### Re: Dhaka Divisional Higher Secondary 2011

A man is not finished when he's defeated, he's finished when he quits.

Tahmid Hasan
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### Re: Dhaka Divisional Higher Secondary 2011

bhai1st taans ki 108?
বড় ভালবাসি তোমায়,মা

Moon
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### Re: Dhaka Divisional Higher Secondary 2011

Ans issa kore muche disi ...bcz you have to discuss them in the forum. That is the best way to learn problem solving.You have to discuss.
@hasib: I am going to post the problems soon. (within an hour) So don't worry.
"Inspiration is needed in geometry, just as much as in poetry." -- Aleksandr Pushkin

learn how to write equations, and don't forget to read Forum Guide and Rules.

Tahmid Hasan
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Joined: Thu Dec 09, 2010 5:34 pm

### Re: Dhaka Divisional Higher Secondary 2011

could solve only 6 probs in 1:15 hours :'(
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Hasib
Posts: 238
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### Re: Dhaka Divisional Higher Secondary 2011

Moon vai- please, quick give me. Felt crazy!
A man is not finished when he's defeated, he's finished when he quits.

Tahmid Hasan
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### Re: Dhaka Divisional Higher Secondary 2011

soln for num 1:
Last edited by Tahmid Hasan on Sat Jan 29, 2011 7:29 pm, edited 4 times in total.
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Tahmid Hasan
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### Re: Dhaka Divisional Higher Secondary 2011

no.2:the 3 digit numbers with the three same digits are 111,222,333,....999
trial and error
ans:2
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Chorom Boka
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### Re: Dhaka Divisional Higher Secondary 2011

Frst prblm: 117

Scnd: 12

Thrd: B= empty set

4th: a=12

5th: R= -1

7th: 2/3

Vul hoile bekkha dio (Mun)

abir91
Posts: 52
Joined: Sun Dec 19, 2010 11:48 am

### Re: Dhaka Divisional Higher Secondary 2011

Tahmid: Your first solution was correct. The second one is wrong.

Don't worry about how many you solved during time pressure. Mathematics is not a sport. It is meant to be enjoyed.

I also failed to solve all of the problems in 75 minutes
Abir

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