Question : If three square are selected at random from chessboard, then the probability that they form the letter ‘L’ is
(A) \dfrac{196}{64C_{3}}
(B) \dfrac{49}{64C_{3}}
(C) \dfrac{36}{64C_{3}}
(D) \dfrac{98}{64C_{3}}
Answer : option (A)
Solution :
If three square are selected at random from chessboard, then the probability that they form the letter ‘L’ is
with
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