Comprehension:
Three reviewers Amal, Bimal, and Komal are tasked with selecting questions from a pool
of 13 questions (Q01 to Q13). Questions can be created by external “subject matter
experts” (SMEs) or by one of the three reviewers. Each of the reviewers either approves or
disapproves a question that is shown to them. Their decisions lead to eventual acceptance
or rejection of the question in the manner described below.
If a question is created by an SME, it is reviewed first by Amal, and then by Bimal. If both
of them approve the question, then the question is accepted and is not reviewed by Komal.
If both disapprove the question, it is rejected and is not reviewed by Komal. If one of them
approves the question and the other disapproves it, then the question is reviewed by
Komal. Then the question is accepted only if she approves it.
A question created by one of the reviewers is decided upon by the other two. If a question
is created by Amal, then it is first reviewed by Bimal. If Bimal approves the question, then it
is accepted. Otherwise, it is reviewed by Komal. The question is then accepted only if
Komal approves it. A similar process is followed for questions created by Bimal, whose
questions are first reviewed by Komal, and then by Amal only if Komal disapproves it.
Questions created by Komal are first reviewed by Amal, and then, if required, by Bimal.
The following facts are known about the review process after its completion.
1. Q02, Q06, Q09, Q11, and Q12 were rejected and the other questions were accepted.
2. Amal reviewed only Q02, Q03, Q04, Q06, Q08, Q10, Q11, and Q13.
3. Bimal reviewed only Q02, Q04, Q06 through Q09, Q12, and Q13.
4. Komal reviewed only Q01 through Q05, Q07, Q08, Q09, Q11, and Q12.
The approval ratio of a reviewer is the ratio of the number of questions (s)he approved
to the number of questions (s)he reviewed. Which option best describes Amal’s
approval ratio?