Question #28871

A and B are two students .Their chances of solving a problem correctly are 1/3 and 1/4.If the probability of their making a common error is 1/20 and they obtain the same answer then the probability of their answer to be correct is?

A.1/12 B.1/40 C.13/120 D.10/13

A.1/12 B.1/40 C.13/120 D.10/13

Expert's answer

## Comments

## Leave a comment