Search found 312 matches
- Wed Feb 05, 2014 9:13 pm
- Forum: National Math Olympiad (BdMO)
- Topic: Junior 2011/7
- Replies: 4
- Views: 3882
Re: Junior 2011/7
Please give the full solution
- Mon Feb 03, 2014 9:46 pm
- Forum: Geometry
- Topic: Asking suggesion for BdMO 2014
- Replies: 3
- Views: 3063
Asking suggesion for BdMO 2014
Please give suggesion for junior category for BdMO 2014.
- Fri Jan 31, 2014 8:08 pm
- Forum: National Math Olympiad (BdMO)
- Topic: National Junior 2009
- Replies: 9
- Views: 5235
Re: National Junior 2009
Sourav da,have you solved the problem!If you,please give the solution.
- Thu Jan 30, 2014 11:32 pm
- Forum: National Math Olympiad (BdMO)
- Topic: Junior 2006/3
- Replies: 5
- Views: 3257
Re: Junior 2006/3
Please give the solution
- Thu Jan 30, 2014 11:25 pm
- Forum: National Math Olympiad (BdMO)
- Topic: Junior 2006/3
- Replies: 5
- Views: 3257
Re: Junior 2006/3
sorry,I have got a mistake.There is (a+b) after while.This is: while a+b=constant
- Thu Jan 30, 2014 11:14 pm
- Forum: National Math Olympiad (BdMO)
- Topic: Junior 2011/7
- Replies: 4
- Views: 3882
Junior 2011/7
Consider a sequence of four integers so that the GCD of first three is the same as the LCM of the last three.How many such sequences exist so that the sum of the numbers is 2011. [ Mod edit: Topic locked. Please use search option and do not post duplicate topics. This problem was previously posted h...
- Thu Jan 30, 2014 11:05 pm
- Forum: National Math Olympiad (BdMO)
- Topic: Junior 2009/5
- Replies: 3
- Views: 4006
Junior 2009/5
In a $N\times N$ grid,Abir picks three lattice points as vertexes of a triangle.Surprisingly,he always chooses the (o,o) point.What is the largest area of the triangle Abir can draw.
- Thu Jan 30, 2014 10:49 pm
- Forum: National Math Olympiad (BdMO)
- Topic: Junior 2006/3
- Replies: 5
- Views: 3257
Junior 2006/3
Prove that the product of two real numbers is maximum when the numbers are equal to each other while $a+b=$constant.
- Thu Jan 30, 2014 10:36 pm
- Forum: National Math Olympiad (BdMO)
- Topic: Junior 2006/2
- Replies: 1
- Views: 1971
Junior 2006/2
The sum of first n terms of an arithmatic series is $n^{2}+3n$ .Find the series.
- Thu Jan 30, 2014 2:31 pm
- Forum: National Math Olympiad (BdMO)
- Topic: Junior 2011/7
- Replies: 2
- Views: 8201
Junior 2011/7
Consider a sequence of four integers so that the GCD of first three is the same as the LCM of the last three. How many such sequences exist so that the sum of numbers is 2011