Search found 4 matches

by mac0220
Tue Mar 06, 2018 3:08 am
Forum: National Math Olympiad (BdMO)
Topic: BdMO National Secondary 2006/10
Replies: 5
Views: 1721

Re: BdMO National Secondary 2006/10

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 :D
by mac0220
Mon Mar 05, 2018 9:38 am
Forum: National Math Olympiad (BdMO)
Topic: BdMO National Secondary 2015/2
Replies: 4
Views: 1244

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
by mac0220
Wed Feb 28, 2018 4:44 am
Forum: National Math Olympiad (BdMO)
Topic: BDMO 2017 National round Secondary 1
Replies: 19
Views: 6823

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...
by mac0220
Wed Feb 28, 2018 3:34 am
Forum: National Math Olympiad (BdMO)
Topic: BdMO 2017 National Round Secondary 7
Replies: 13
Views: 3898

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.