Search found 5 matches

Sun May 27, 2018 4:15 pm
Forum: Divisional Math Olympiad
Topic: Chittagong Secondary 2017#4
Replies: 7
Views: 828

Re: Chittagong Secondary 2017#4

No,you can't Check practically in a real chessboard.
Wed May 02, 2018 8:03 pm
Forum: Divisional Math Olympiad
Topic: Chittagong Secondary 2017#4
Replies: 7
Views: 828

Re: Chittagong Secondary 2017#4

Hint There are \$2015\$ black squares in that chess board Answer \$2015\$ Sorry brother,your solution is not right :oops: :!: .It doesn't mean that if there are 2015 black squares then there can be placed 2015 horses at the maximum rate.First think about 5*2 chessboard.You can put at most 4 horses in 5...
Tue Mar 27, 2018 6:10 pm
Forum: Primary Level
Topic: Combinatorics
Replies: 6
Views: 942

Combinatorics

In how many ways can COMPUTER be spelled by moving either down or diagonally to the right showed in the figure below??
Tue Mar 27, 2018 4:11 pm
Forum: Introductions
Topic: Combinatorics
Replies: 4
Views: 812

Re: Combinatorics

The problem is solved for ordered pairs in your suggested book.But I want the solution for the unordered pairs.Detailed help will be much appreciated.
Thu Mar 15, 2018 10:48 am
Forum: Introductions
Topic: Combinatorics
Replies: 4
Views: 812

Combinatorics

How many pairs of natural number can be formed whose LCM will be 7000?This problem has been taken from bdmo regional contest. As I am a new learner,please help me solving the problem in detail.