If A and B be two mutually exclusive events and P(A) = 3/4; P (A U B) = 5/6 then P(B) is June 8, 2021 by admin Question: If A and B be two mutually exclusive events and P(A) = 3/4; P (A U B) = 5/6 then P(B) is A. 2/3 B. 3/5 C. 5/12 D. 1/12 Answer» d. 1/12 Note: The above multiple-choice question is for all general and Competitive Exams in India.