The number of ways of choosing 3 squares from a chessboard so that they have exactly one common vertex
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Answer:
The No. Of Squares Which have common vertex in chess Board are The squares which are present in the last line on all four sides.
Step-by-step explanation:
No. of Squares on last line of a chess Board=8
No. Of squares on ast line which have a common vertex=7
Therefore,
7×7 ( Up & Down)
+
7×7 ( Left & Right)
_______________________________
98 (Total Ways Of Selecting 3 Squares)
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