Khulna Secondary 2011

Problem for Secondary Group from Divisional Mathematical Olympiad will be solved here.
Forum rules
Please don't post problems (by starting a topic) in the "Secondary: Solved" forum. This forum is only for showcasing the problems for the convenience of the users. You can 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.
Hasib
Posts:238
Joined:Fri Dec 10, 2010 11:29 am
Location:খুলনা, বাংলাদেশ
Contact:
Khulna Secondary 2011

Unread post by Hasib » Fri Jan 28, 2011 7:37 pm

Problem1:Sakib is asked to bring $4^{th}$ book from right corner from the desk. He bring $4^{th}$ book from left corner. How many book was there?

Problem2: What is the least value of this expretion? $16x^2-8x+6$

Problem3: The each divisional ques has 40 question. There are 13 math division. Each question can be repeted 3 times. At least how many ques needed for making the all ques of all division?

Problem 4: There are 2011 balls in my busket. $(n+3)^{th}$ ball is colored with respect to $n^{th}$ ball's color. I have three color:Red, blue,black. In how many way i can color them?

Problem 10: Let, $f(x+y)=x+f(y)\, and f(0)=2$ Evalute: $f(2011)$

Problem 5:what is the highest
number for which if divided by
11 the quotient is twice as the
remainder?

I cant remember anyother problem, please anyone else post the other problems. I will update that.
Last edited by Hasib on Fri Jan 28, 2011 8:19 pm, edited 1 time in total.
A man is not finished when he's defeated, he's finished when he quits.

User avatar
Tahmid Hasan
Posts:665
Joined:Thu Dec 09, 2010 5:34 pm
Location:Khulna,Bangladesh.

Re: Khulna Secondary 2011

Unread post by Tahmid Hasan » Fri Jan 28, 2011 7:43 pm

in prob 10 there is 1 more clue $$f(0)=2$$
বড় ভালবাসি তোমায়,মা

User avatar
Tahmid Hasan
Posts:665
Joined:Thu Dec 09, 2010 5:34 pm
Location:Khulna,Bangladesh.

Re: Khulna Secondary 2011

Unread post by Tahmid Hasan » Fri Jan 28, 2011 7:44 pm

problem 5:what is the highest number for which if divided by 11 the quotient is twice as the remainder?
বড় ভালবাসি তোমায়,মা

Hasib
Posts:238
Joined:Fri Dec 10, 2010 11:29 am
Location:খুলনা, বাংলাদেশ
Contact:

Re: Khulna Secondary 2011

Unread post by Hasib » Fri Jan 28, 2011 7:57 pm

tnx updating, anything else?
A man is not finished when he's defeated, he's finished when he quits.

User avatar
Moon
Site Admin
Posts:751
Joined:Tue Nov 02, 2010 7:52 pm
Location:Dhaka, Bangladesh
Contact:

Re: Khulna Secondary 2011

Unread post by Moon » Fri Jan 28, 2011 8:19 pm

OK BdMO bot will post them separately soon. :)
"Inspiration is needed in geometry, just as much as in poetry." -- Aleksandr Pushkin

Please install LaTeX fonts in your PC for better looking equations,
learn how to write equations, and don't forget to read Forum Guide and Rules.

Hasib
Posts:238
Joined:Fri Dec 10, 2010 11:29 am
Location:খুলনা, বাংলাদেশ
Contact:

Re: Khulna Secondary 2011

Unread post by Hasib » Fri Jan 28, 2011 8:36 pm

i cant get u? ? @Moon vai
A man is not finished when he's defeated, he's finished when he quits.

User avatar
Moon
Site Admin
Posts:751
Joined:Tue Nov 02, 2010 7:52 pm
Location:Dhaka, Bangladesh
Contact:

Re: Khulna Secondary 2011

Unread post by Moon » Fri Jan 28, 2011 8:40 pm

বলতে চাইছি যে প্রশ্নগুলো আলাদা আলাদাভাবে পোস্ট করা হবে। কারণ নিয়ম অনুসারে এক পোস্টে একাধিক সমস্যা নিয়ে আলোচনা করা উচিত না। :)
"Inspiration is needed in geometry, just as much as in poetry." -- Aleksandr Pushkin

Please install LaTeX fonts in your PC for better looking equations,
learn how to write equations, and don't forget to read Forum Guide and Rules.

Hasib
Posts:238
Joined:Fri Dec 10, 2010 11:29 am
Location:খুলনা, বাংলাদেশ
Contact:

Re: Khulna Secondary 2011

Unread post by Hasib » Fri Jan 28, 2011 9:05 pm

Oo! But im posting the problems here. Then, do what u want :P but cant remember them :(
A man is not finished when he's defeated, he's finished when he quits.

User avatar
leonardo shawon
Posts:169
Joined:Sat Jan 01, 2011 4:59 pm
Location:Dhaka

Re: Khulna Secondary 2011

Unread post by leonardo shawon » Sat Jan 29, 2011 11:13 pm

answers>
problem 1. 7 books
problem 3. 14 quetions at least
Ibtehaz Shawon
BRAC University.

long way to go .....

Post Reply