Question : A letter is known to have come either from LONDON or CLIFTON; on the postmark only the two consecutive letters ON are legible. The probability that if came from LONDON is
(A) 1/17
(B) 12/17
(C) 17/30
(D) 3/5
Answer : option (B)
Solution :
A letter is known to have come either from LONDON or CLIFTON; on the postmark only the two consecutive letters ON are legible. The probability that if came from LONDON is
with
no comment