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⏺ The probability of 'A' speaks the truth is 4/5, while this probability for B is 3/4 . The probability that they contradict with eachother when asked to speak on a fact is :-
a) 3/23 b)1/20 c) 1/5 d)14/40
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4/5 into 1/4+3/4into 1/5 equals to 7/20 or 14/40 so option D is correct
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