Question : If odds against solving a question by three students are 2:1, 5:2 and 5:3, respectively, then probability that the question is solved only by one student is
(A) 31/56
(B) 24/56
(C) 25/56
(D) none of these
Answer : option (C)
Solution :
If odds against solving a question by three students are 2:1, 5:2 and 5:3, respectively, then probability that the question is solved only by one student is
with
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