TS EAMCET 5 May 2018 Shift 1 Solved Paper

111 a test, a student either guesses or copies or blows the answer to a multiple choice question with four choices having one correct answer. The probability that he guesses the answer is

1

3

and the probability that he copies it is

1

12

. The probability that his answer is correct given that he copied it is

1

6

. The probability that he blew the answer, given that he has correctly answered it. is