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CAT 2021 Previous Year Questions: Caselets Notes | Study Logical Reasoning (LR) and Data Interpretation (DI) - CAT

Document Description: CAT 2021 Previous Year Questions: Caselets for CAT 2022 is part of Logical Reasoning (LR) and Data Interpretation (DI) preparation. The notes and questions for CAT 2021 Previous Year Questions: Caselets have been prepared according to the CAT exam syllabus. Information about CAT 2021 Previous Year Questions: Caselets covers topics like and CAT 2021 Previous Year Questions: Caselets Example, for CAT 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for CAT 2021 Previous Year Questions: Caselets.

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Passage - 1

Amudha, Bharatan, Chandran, Dhinesh, Ezhil, Fani and Gowtham are seven people in a town. Any pair of them could either be strangers, acquaintances, or friends. All relationships are mutual. For example, if Amudha is a friend of Bharatan, then Bharatan is also a friend of Amudha. Similarly, if Amudha is a stranger to Bharatan, then Bharatan is also a stranger to Amudha.
Partial information about the number of friends, acquaintances, and strangers of each of these people among them is given in the table below.
CAT 2021 Previous Year Questions: Caselets Notes | Study Logical Reasoning (LR) and Data Interpretation (DI) - CATThe following additional facts are also known.
1. Amudha, Bharatan, and Chandran are mutual strangers.
2. Amudha, Dhinesh, and Fani are Ezil's friends.
3. Chandran and Gowtham are friends.
4. Every friend of Amudha is an acquaintance of Bharatan, and every acquaintance of Bharatan is a friend of Amudha.
5. Every friend of Bharatan is an acquaintance of Amudha, and every acquaintance of Amudha is a friend of Bharatan.

Question for CAT 2021 Previous Year Questions: Caselets
Try yourself:Who are Gowtham’s acquaintances?
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Question for CAT 2021 Previous Year Questions: Caselets
Try yourself:Who is an acquaintance of Amudha?
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*Answer can only contain numeric values
Question for CAT 2021 Previous Year Questions: Caselets
Try yourself:How many friends does Ezhil have?
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Question for CAT 2021 Previous Year Questions: Caselets
Try yourself:Which of these pairs share the same type of relationship?
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Question for CAT 2021 Previous Year Questions: Caselets
Try yourself:Who is an acquaintance of Chandran?
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*Answer can only contain numeric values
Question for CAT 2021 Previous Year Questions: Caselets
Try yourself:How many people are either a friend or a friend-of-a-friend of Ezhil?
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Passage - 2

Each of the bottles mentioned in this question contains 50 ml of liquid. The liquid in any bottle can be 100% pure content (P) or can have certain amount of impurity (I). Visually it is not possible to distinguish between P and I. There is a testing device which detects impurity, as long as the percentage of impurity in the content tested is 10% or more.
For example, suppose bottle 1 contains only P, and bottle 2 contains 80% P and 20% I. If content from bottle 1 is tested, it will be found out that it contains only P. If content of bottle 2 is tested, the test will reveal that it contains some amount of I. If 10 ml of content from bottle 1 is mixed with 20 ml content from bottle 2, the test will show that the mixture has impurity, and hence we can conclude that at least one of the two bottles has I. However, if 10 ml of content from bottle 1 is mixed with 5 ml of content from bottle 2. the test will not detect any impurity in the resultant mixture.

Question for CAT 2021 Previous Year Questions: Caselets
Try yourself:5 ml of content from bottle A is mixed with 5 ml of content from bottle B. The resultant mixture, when tested, detects the presence of I. If it is known that bottle A contains only P, what BEST can be concluded about the volume of I in bottle B?
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*Answer can only contain numeric values
Question for CAT 2021 Previous Year Questions: Caselets
Try yourself:There are four bottles. It is known that three of these bottles contain only P, while the remaining one contains 80% P and 20% I. What is the minimum number of tests required to definitely identify the bottle containing some amount of I?
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*Answer can only contain numeric values
Question for CAT 2021 Previous Year Questions: Caselets
Try yourself:There are four bottles. Each bottle is known to contain only P or only I. They will be considered to be “collectively ready for despatch” if all of them contain only P. In minimum how many tests, is it possible to ascertain whether these four bottles are “collectively ready for despatch”?
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Question for CAT 2021 Previous Year Questions: Caselets
Try yourself:There are four bottles. It is known that either one or two of these bottles contain(s) only P, while the remaining ones contain 85% P and 15% I. What is the minimum number of tests required to ascertain the exact number of bottles containing only P?
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Passage - 3

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.

*Answer can only contain numeric values
Question for CAT 2021 Previous Year Questions: Caselets
Try yourself:How many questions were DEFINITELY created by Amal?
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*Answer can only contain numeric values
Question for CAT 2021 Previous Year Questions: Caselets
Try yourself:How many questions were DEFINITELY created by the SMEs?
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Question for CAT 2021 Previous Year Questions: Caselets
Try yourself: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?
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*Answer can only contain numeric values
Question for CAT 2021 Previous Year Questions: Caselets
Try yourself:How many questions were DEFINITELY created by Komal?
Check
View Solution

Question for CAT 2021 Previous Year Questions: Caselets
Try yourself:How many questions were DEFINITELY disapproved by Bimal?
View Solution

Question for CAT 2021 Previous Year Questions: Caselets
Try yourself:How many questions created by Amal or Bimal were disapproved by at least one of the other reviewers?
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The document CAT 2021 Previous Year Questions: Caselets Notes | Study Logical Reasoning (LR) and Data Interpretation (DI) - CAT is a part of the CAT Course Logical Reasoning (LR) and Data Interpretation (DI).
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