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There is a chessboard of 11x11 Find the number of ways of selecting 2 squares in such a way that selected squares should not share common side

There is a chessboard of 11x11 
 Find the number of ways of selecting 2 squares in such a way that selected squares should not share common side

Grade:9

1 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
2 years ago
Dear student

Ways of choosing 1st square =121C1= 121

Ways of choosing 2nd square =(121-11-10)C1.= 100

Total ways = 12100

Regards

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