If I just connect O and P , C and Q , they're both perpendiculer on TT'
Now solving the problem will be a whole lot easier
Search found 4 matches
- Tue Mar 06, 2018 3:08 am
- Forum: National Math Olympiad (BdMO)
- Topic: BdMO National Secondary 2006/10
- Replies: 5
- Views: 3922
- Mon Mar 05, 2018 9:38 am
- Forum: National Math Olympiad (BdMO)
- Topic: BdMO National Secondary 2015/2
- Replies: 5
- Views: 3726
Re: BdMO National Secondary 2015/2
The solution is ( m,n ) = (2,2)
n and n-1 are co prime unless n-1=1
which makes n=m=2
n and n-1 are co prime unless n-1=1
which makes n=m=2
- Wed Feb 28, 2018 4:44 am
- Forum: National Math Olympiad (BdMO)
- Topic: BDMO 2017 National round Secondary 1
- Replies: 19
- Views: 17392
Re: BDMO 2017 National round Secondary 1
The approaches are quite hard, mate, I must say,but whatever you do ,in whatever way the game goes ,I found that quite annoyingly the answer is (a) 12.5% (b) 100/16 % (c) 100/3 % answers given by Absur Khan Siam are right when the condition is applied that the players have to play 5 matches no matte...
- Wed Feb 28, 2018 3:34 am
- Forum: National Math Olympiad (BdMO)
- Topic: BdMO 2017 National Round Secondary 7
- Replies: 17
- Views: 20123
Re: BdMO 2017 National Round Secondary 7
I think the condition is for ,any 20 pics share a common colour, but not all of them share the same colour.
If that so ,then the answer is 3.
If that so ,then the answer is 3.