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Four friends - A, B, C and D - belong to an island, in which each person belongs to one of the three tribes - Truth tellers, Alternators and Liars. Truth tellers always tell the truth, Alternators alternate between true and false statements, in any order and Liars always lie. A, B, C and D earn their respective livelihoods as a Banker, a Journalist, an Engineer and a Doctor, not necessarily in the same order. When asked about the tribes and how they earn their livelihoods, each of them made exactly three statements. B made his first and third statements in the local language, which was incomprehensible, but made his second statement in English. However, A, C and D made all their statements in English.
A:
Statement 1: B’s first statement is that, “C is either a Journalist or a Doctor.” Statement 2: C is not a Truth teller.
Statement 3: B is an Engineer.
B:
Statement 1: Aabra ka Daabra.
Statement 2: Atleast one of my statements is false.
Statement 3: Daan a kun.
C:
Statement 1: A is a Doctor.
Statement 2: B’s third statement is that, “D is a truth teller.” Statement 3: D is neither a Journalist nor an Engineer.
D:
Statement 1: C made exactly one true statement.
Statement 2: Exactly two of us are truth tellers.
Statement 3: C is a Journalist.
Among A, B, C and D, at least one person of each tribe is present.
A:
Statement 1: B’s first statement is that, “C is either a Journalist or a Doctor.” Statement 2: C is not a Truth teller.
Statement 3: B is an Engineer.
B:
Statement 1: Aabra ka Daabra.
Statement 2: Atleast one of my statements is false.
Statement 3: Daan a kun.
C:
Statement 1: A is a Doctor.
Statement 2: B’s third statement is that, “D is a truth teller.” Statement 3: D is neither a Journalist nor an Engineer.
D:
Statement 1: C made exactly one true statement.
Statement 2: Exactly two of us are truth tellers.
Statement 3: C is a Journalist.
Among A, B, C and D, at least one person of each tribe is present.
Q. Which of the following groups consists of people from all the three tribes?
- a)ABC
- b)ABD
- c)CAD
- d)Cannot be determined
- e)None of these
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Four friends - A, B, C and D - belong to an island, in which each pers...
Consider the table obtained in the solution to the first question.
B is an alternator, C is a truth teller and A and D are liars.
For a group to contain persons from all the three tribes, it must have both B and C and either A or D.
Only option 1 satisfies the condition.
Hence, option 1.
B is an alternator, C is a truth teller and A and D are liars.
For a group to contain persons from all the three tribes, it must have both B and C and either A or D.
Only option 1 satisfies the condition.
Hence, option 1.
This question is part of UPSC exam. View all CAT courses
Most Upvoted Answer
Four friends - A, B, C and D - belong to an island, in which each pers...
Analysis:
- A, B, C, and D belong to three tribes - Truth tellers, Alternators, and Liars.
- Each person made exactly three statements.
- B made his first and third statements in the local language, but the second statement in English.
- A, C, and D made all their statements in English.
Given Statements:
A:
- Statement 1: B's first statement is that C is either a Journalist or a Doctor.
- Statement 2: C is not a Truth teller.
- Statement 3: B is an Engineer.
B:
- Statement 1: Aabra ka Daabra.
- Statement 2: At least one of my statements is false.
- Statement 3: Daan a kun.
C:
- Statement 1: A is a Doctor.
- Statement 2: B's third statement is that D is a truth teller.
- Statement 3: D is neither a Journalist nor an Engineer.
D:
- Statement 1: C made exactly one true statement.
- Statement 2: Exactly two of us are truth tellers.
- Statement 3: C is a Journalist.
Solution:
- From A's statements, we understand that B is an Engineer and C is not a Truth teller.
- From B's statements, we cannot deduce much due to the language barrier.
- From C's statements, we know that A is a Doctor and D is neither a Journalist nor an Engineer.
- From D's statements, we learn that C made exactly one true statement and there are exactly two truth tellers among them.
Conclusion:
- A is a Doctor and C made exactly one true statement, so C must be a Truth teller.
- B is an Engineer and D is not a Truth teller, so D must be a Liar.
- From D's statements, there are exactly two truth tellers, so A must be a Truth teller.
Therefore, the group ABC consists of people from all three tribes (Truth teller, Alternator, Liar).
- A, B, C, and D belong to three tribes - Truth tellers, Alternators, and Liars.
- Each person made exactly three statements.
- B made his first and third statements in the local language, but the second statement in English.
- A, C, and D made all their statements in English.
Given Statements:
A:
- Statement 1: B's first statement is that C is either a Journalist or a Doctor.
- Statement 2: C is not a Truth teller.
- Statement 3: B is an Engineer.
B:
- Statement 1: Aabra ka Daabra.
- Statement 2: At least one of my statements is false.
- Statement 3: Daan a kun.
C:
- Statement 1: A is a Doctor.
- Statement 2: B's third statement is that D is a truth teller.
- Statement 3: D is neither a Journalist nor an Engineer.
D:
- Statement 1: C made exactly one true statement.
- Statement 2: Exactly two of us are truth tellers.
- Statement 3: C is a Journalist.
Solution:
- From A's statements, we understand that B is an Engineer and C is not a Truth teller.
- From B's statements, we cannot deduce much due to the language barrier.
- From C's statements, we know that A is a Doctor and D is neither a Journalist nor an Engineer.
- From D's statements, we learn that C made exactly one true statement and there are exactly two truth tellers among them.
Conclusion:
- A is a Doctor and C made exactly one true statement, so C must be a Truth teller.
- B is an Engineer and D is not a Truth teller, so D must be a Liar.
- From D's statements, there are exactly two truth tellers, so A must be a Truth teller.
Therefore, the group ABC consists of people from all three tribes (Truth teller, Alternator, Liar).
Community Answer
Four friends - A, B, C and D - belong to an island, in which each pers...
Correct answer is A
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Four friends - A, B, C and D - belong to an island, in which each person belongs to one of the three tribes - Truth tellers, Alternators and Liars. Truth tellers always tell the truth, Alternators alternate between true and false statements, in any order and Liars always lie. A, B, C and D earn their respective livelihoods as a Banker, a Journalist, an Engineer and a Doctor, not necessarily in the same order. When asked about the tribes and how they earn their livelihoods, each of them made exactly three statements. B made his first and third statements in the local language, which was incomprehensible, but made his second statement in English. However, A, C and D made all their statements in English.A:Statement 1: B’s first statement is that, “C is either a Journalist or a Doctor.” Statement 2: C is not a Truth teller.Statement 3: B is an Engineer.B:Statement 1: Aabra ka Daabra.Statement 2: Atleast one of my statements is false.Statement 3: Daan a kun.C:Statement 1: A is a Doctor.Statement 2: B’s third statement is that, “D is a truth teller.” Statement 3: D is neither a Journalist nor an Engineer.D:Statement 1: C made exactly one true statement.Statement 2: Exactly two of us are truth tellers.Statement 3: C is a Journalist.Among A, B, C and D, at least one person of each tribe is present.Q.Which of the following groups consists of people from all the three tribes?a)ABCb)ABDc)CADd)Cannot be determinede)None of theseCorrect answer is option 'A'. Can you explain this answer?
Question Description
Four friends - A, B, C and D - belong to an island, in which each person belongs to one of the three tribes - Truth tellers, Alternators and Liars. Truth tellers always tell the truth, Alternators alternate between true and false statements, in any order and Liars always lie. A, B, C and D earn their respective livelihoods as a Banker, a Journalist, an Engineer and a Doctor, not necessarily in the same order. When asked about the tribes and how they earn their livelihoods, each of them made exactly three statements. B made his first and third statements in the local language, which was incomprehensible, but made his second statement in English. However, A, C and D made all their statements in English.A:Statement 1: B’s first statement is that, “C is either a Journalist or a Doctor.” Statement 2: C is not a Truth teller.Statement 3: B is an Engineer.B:Statement 1: Aabra ka Daabra.Statement 2: Atleast one of my statements is false.Statement 3: Daan a kun.C:Statement 1: A is a Doctor.Statement 2: B’s third statement is that, “D is a truth teller.” Statement 3: D is neither a Journalist nor an Engineer.D:Statement 1: C made exactly one true statement.Statement 2: Exactly two of us are truth tellers.Statement 3: C is a Journalist.Among A, B, C and D, at least one person of each tribe is present.Q.Which of the following groups consists of people from all the three tribes?a)ABCb)ABDc)CADd)Cannot be determinede)None of theseCorrect answer is option 'A'. Can you explain this answer? for CAT 2024 is part of CAT preparation. The Question and answers have been prepared according to the CAT exam syllabus. Information about Four friends - A, B, C and D - belong to an island, in which each person belongs to one of the three tribes - Truth tellers, Alternators and Liars. Truth tellers always tell the truth, Alternators alternate between true and false statements, in any order and Liars always lie. A, B, C and D earn their respective livelihoods as a Banker, a Journalist, an Engineer and a Doctor, not necessarily in the same order. When asked about the tribes and how they earn their livelihoods, each of them made exactly three statements. B made his first and third statements in the local language, which was incomprehensible, but made his second statement in English. However, A, C and D made all their statements in English.A:Statement 1: B’s first statement is that, “C is either a Journalist or a Doctor.” Statement 2: C is not a Truth teller.Statement 3: B is an Engineer.B:Statement 1: Aabra ka Daabra.Statement 2: Atleast one of my statements is false.Statement 3: Daan a kun.C:Statement 1: A is a Doctor.Statement 2: B’s third statement is that, “D is a truth teller.” Statement 3: D is neither a Journalist nor an Engineer.D:Statement 1: C made exactly one true statement.Statement 2: Exactly two of us are truth tellers.Statement 3: C is a Journalist.Among A, B, C and D, at least one person of each tribe is present.Q.Which of the following groups consists of people from all the three tribes?a)ABCb)ABDc)CADd)Cannot be determinede)None of theseCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for CAT 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Four friends - A, B, C and D - belong to an island, in which each person belongs to one of the three tribes - Truth tellers, Alternators and Liars. Truth tellers always tell the truth, Alternators alternate between true and false statements, in any order and Liars always lie. A, B, C and D earn their respective livelihoods as a Banker, a Journalist, an Engineer and a Doctor, not necessarily in the same order. When asked about the tribes and how they earn their livelihoods, each of them made exactly three statements. B made his first and third statements in the local language, which was incomprehensible, but made his second statement in English. However, A, C and D made all their statements in English.A:Statement 1: B’s first statement is that, “C is either a Journalist or a Doctor.” Statement 2: C is not a Truth teller.Statement 3: B is an Engineer.B:Statement 1: Aabra ka Daabra.Statement 2: Atleast one of my statements is false.Statement 3: Daan a kun.C:Statement 1: A is a Doctor.Statement 2: B’s third statement is that, “D is a truth teller.” Statement 3: D is neither a Journalist nor an Engineer.D:Statement 1: C made exactly one true statement.Statement 2: Exactly two of us are truth tellers.Statement 3: C is a Journalist.Among A, B, C and D, at least one person of each tribe is present.Q.Which of the following groups consists of people from all the three tribes?a)ABCb)ABDc)CADd)Cannot be determinede)None of theseCorrect answer is option 'A'. Can you explain this answer?.
Four friends - A, B, C and D - belong to an island, in which each person belongs to one of the three tribes - Truth tellers, Alternators and Liars. Truth tellers always tell the truth, Alternators alternate between true and false statements, in any order and Liars always lie. A, B, C and D earn their respective livelihoods as a Banker, a Journalist, an Engineer and a Doctor, not necessarily in the same order. When asked about the tribes and how they earn their livelihoods, each of them made exactly three statements. B made his first and third statements in the local language, which was incomprehensible, but made his second statement in English. However, A, C and D made all their statements in English.A:Statement 1: B’s first statement is that, “C is either a Journalist or a Doctor.” Statement 2: C is not a Truth teller.Statement 3: B is an Engineer.B:Statement 1: Aabra ka Daabra.Statement 2: Atleast one of my statements is false.Statement 3: Daan a kun.C:Statement 1: A is a Doctor.Statement 2: B’s third statement is that, “D is a truth teller.” Statement 3: D is neither a Journalist nor an Engineer.D:Statement 1: C made exactly one true statement.Statement 2: Exactly two of us are truth tellers.Statement 3: C is a Journalist.Among A, B, C and D, at least one person of each tribe is present.Q.Which of the following groups consists of people from all the three tribes?a)ABCb)ABDc)CADd)Cannot be determinede)None of theseCorrect answer is option 'A'. Can you explain this answer? for CAT 2024 is part of CAT preparation. The Question and answers have been prepared according to the CAT exam syllabus. Information about Four friends - A, B, C and D - belong to an island, in which each person belongs to one of the three tribes - Truth tellers, Alternators and Liars. Truth tellers always tell the truth, Alternators alternate between true and false statements, in any order and Liars always lie. A, B, C and D earn their respective livelihoods as a Banker, a Journalist, an Engineer and a Doctor, not necessarily in the same order. When asked about the tribes and how they earn their livelihoods, each of them made exactly three statements. B made his first and third statements in the local language, which was incomprehensible, but made his second statement in English. However, A, C and D made all their statements in English.A:Statement 1: B’s first statement is that, “C is either a Journalist or a Doctor.” Statement 2: C is not a Truth teller.Statement 3: B is an Engineer.B:Statement 1: Aabra ka Daabra.Statement 2: Atleast one of my statements is false.Statement 3: Daan a kun.C:Statement 1: A is a Doctor.Statement 2: B’s third statement is that, “D is a truth teller.” Statement 3: D is neither a Journalist nor an Engineer.D:Statement 1: C made exactly one true statement.Statement 2: Exactly two of us are truth tellers.Statement 3: C is a Journalist.Among A, B, C and D, at least one person of each tribe is present.Q.Which of the following groups consists of people from all the three tribes?a)ABCb)ABDc)CADd)Cannot be determinede)None of theseCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for CAT 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Four friends - A, B, C and D - belong to an island, in which each person belongs to one of the three tribes - Truth tellers, Alternators and Liars. Truth tellers always tell the truth, Alternators alternate between true and false statements, in any order and Liars always lie. A, B, C and D earn their respective livelihoods as a Banker, a Journalist, an Engineer and a Doctor, not necessarily in the same order. When asked about the tribes and how they earn their livelihoods, each of them made exactly three statements. B made his first and third statements in the local language, which was incomprehensible, but made his second statement in English. However, A, C and D made all their statements in English.A:Statement 1: B’s first statement is that, “C is either a Journalist or a Doctor.” Statement 2: C is not a Truth teller.Statement 3: B is an Engineer.B:Statement 1: Aabra ka Daabra.Statement 2: Atleast one of my statements is false.Statement 3: Daan a kun.C:Statement 1: A is a Doctor.Statement 2: B’s third statement is that, “D is a truth teller.” Statement 3: D is neither a Journalist nor an Engineer.D:Statement 1: C made exactly one true statement.Statement 2: Exactly two of us are truth tellers.Statement 3: C is a Journalist.Among A, B, C and D, at least one person of each tribe is present.Q.Which of the following groups consists of people from all the three tribes?a)ABCb)ABDc)CADd)Cannot be determinede)None of theseCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Four friends - A, B, C and D - belong to an island, in which each person belongs to one of the three tribes - Truth tellers, Alternators and Liars. Truth tellers always tell the truth, Alternators alternate between true and false statements, in any order and Liars always lie. A, B, C and D earn their respective livelihoods as a Banker, a Journalist, an Engineer and a Doctor, not necessarily in the same order. When asked about the tribes and how they earn their livelihoods, each of them made exactly three statements. B made his first and third statements in the local language, which was incomprehensible, but made his second statement in English. However, A, C and D made all their statements in English.A:Statement 1: B’s first statement is that, “C is either a Journalist or a Doctor.” Statement 2: C is not a Truth teller.Statement 3: B is an Engineer.B:Statement 1: Aabra ka Daabra.Statement 2: Atleast one of my statements is false.Statement 3: Daan a kun.C:Statement 1: A is a Doctor.Statement 2: B’s third statement is that, “D is a truth teller.” Statement 3: D is neither a Journalist nor an Engineer.D:Statement 1: C made exactly one true statement.Statement 2: Exactly two of us are truth tellers.Statement 3: C is a Journalist.Among A, B, C and D, at least one person of each tribe is present.Q.Which of the following groups consists of people from all the three tribes?a)ABCb)ABDc)CADd)Cannot be determinede)None of theseCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for CAT.
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Here you can find the meaning of Four friends - A, B, C and D - belong to an island, in which each person belongs to one of the three tribes - Truth tellers, Alternators and Liars. Truth tellers always tell the truth, Alternators alternate between true and false statements, in any order and Liars always lie. A, B, C and D earn their respective livelihoods as a Banker, a Journalist, an Engineer and a Doctor, not necessarily in the same order. When asked about the tribes and how they earn their livelihoods, each of them made exactly three statements. B made his first and third statements in the local language, which was incomprehensible, but made his second statement in English. However, A, C and D made all their statements in English.A:Statement 1: B’s first statement is that, “C is either a Journalist or a Doctor.” Statement 2: C is not a Truth teller.Statement 3: B is an Engineer.B:Statement 1: Aabra ka Daabra.Statement 2: Atleast one of my statements is false.Statement 3: Daan a kun.C:Statement 1: A is a Doctor.Statement 2: B’s third statement is that, “D is a truth teller.” Statement 3: D is neither a Journalist nor an Engineer.D:Statement 1: C made exactly one true statement.Statement 2: Exactly two of us are truth tellers.Statement 3: C is a Journalist.Among A, B, C and D, at least one person of each tribe is present.Q.Which of the following groups consists of people from all the three tribes?a)ABCb)ABDc)CADd)Cannot be determinede)None of theseCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Four friends - A, B, C and D - belong to an island, in which each person belongs to one of the three tribes - Truth tellers, Alternators and Liars. Truth tellers always tell the truth, Alternators alternate between true and false statements, in any order and Liars always lie. A, B, C and D earn their respective livelihoods as a Banker, a Journalist, an Engineer and a Doctor, not necessarily in the same order. When asked about the tribes and how they earn their livelihoods, each of them made exactly three statements. B made his first and third statements in the local language, which was incomprehensible, but made his second statement in English. However, A, C and D made all their statements in English.A:Statement 1: B’s first statement is that, “C is either a Journalist or a Doctor.” Statement 2: C is not a Truth teller.Statement 3: B is an Engineer.B:Statement 1: Aabra ka Daabra.Statement 2: Atleast one of my statements is false.Statement 3: Daan a kun.C:Statement 1: A is a Doctor.Statement 2: B’s third statement is that, “D is a truth teller.” Statement 3: D is neither a Journalist nor an Engineer.D:Statement 1: C made exactly one true statement.Statement 2: Exactly two of us are truth tellers.Statement 3: C is a Journalist.Among A, B, C and D, at least one person of each tribe is present.Q.Which of the following groups consists of people from all the three tribes?a)ABCb)ABDc)CADd)Cannot be determinede)None of theseCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Four friends - A, B, C and D - belong to an island, in which each person belongs to one of the three tribes - Truth tellers, Alternators and Liars. Truth tellers always tell the truth, Alternators alternate between true and false statements, in any order and Liars always lie. A, B, C and D earn their respective livelihoods as a Banker, a Journalist, an Engineer and a Doctor, not necessarily in the same order. When asked about the tribes and how they earn their livelihoods, each of them made exactly three statements. B made his first and third statements in the local language, which was incomprehensible, but made his second statement in English. However, A, C and D made all their statements in English.A:Statement 1: B’s first statement is that, “C is either a Journalist or a Doctor.” Statement 2: C is not a Truth teller.Statement 3: B is an Engineer.B:Statement 1: Aabra ka Daabra.Statement 2: Atleast one of my statements is false.Statement 3: Daan a kun.C:Statement 1: A is a Doctor.Statement 2: B’s third statement is that, “D is a truth teller.” Statement 3: D is neither a Journalist nor an Engineer.D:Statement 1: C made exactly one true statement.Statement 2: Exactly two of us are truth tellers.Statement 3: C is a Journalist.Among A, B, C and D, at least one person of each tribe is present.Q.Which of the following groups consists of people from all the three tribes?a)ABCb)ABDc)CADd)Cannot be determinede)None of theseCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Four friends - A, B, C and D - belong to an island, in which each person belongs to one of the three tribes - Truth tellers, Alternators and Liars. Truth tellers always tell the truth, Alternators alternate between true and false statements, in any order and Liars always lie. A, B, C and D earn their respective livelihoods as a Banker, a Journalist, an Engineer and a Doctor, not necessarily in the same order. When asked about the tribes and how they earn their livelihoods, each of them made exactly three statements. B made his first and third statements in the local language, which was incomprehensible, but made his second statement in English. However, A, C and D made all their statements in English.A:Statement 1: B’s first statement is that, “C is either a Journalist or a Doctor.” Statement 2: C is not a Truth teller.Statement 3: B is an Engineer.B:Statement 1: Aabra ka Daabra.Statement 2: Atleast one of my statements is false.Statement 3: Daan a kun.C:Statement 1: A is a Doctor.Statement 2: B’s third statement is that, “D is a truth teller.” Statement 3: D is neither a Journalist nor an Engineer.D:Statement 1: C made exactly one true statement.Statement 2: Exactly two of us are truth tellers.Statement 3: C is a Journalist.Among A, B, C and D, at least one person of each tribe is present.Q.Which of the following groups consists of people from all the three tribes?a)ABCb)ABDc)CADd)Cannot be determinede)None of theseCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Four friends - A, B, C and D - belong to an island, in which each person belongs to one of the three tribes - Truth tellers, Alternators and Liars. Truth tellers always tell the truth, Alternators alternate between true and false statements, in any order and Liars always lie. A, B, C and D earn their respective livelihoods as a Banker, a Journalist, an Engineer and a Doctor, not necessarily in the same order. When asked about the tribes and how they earn their livelihoods, each of them made exactly three statements. B made his first and third statements in the local language, which was incomprehensible, but made his second statement in English. However, A, C and D made all their statements in English.A:Statement 1: B’s first statement is that, “C is either a Journalist or a Doctor.” Statement 2: C is not a Truth teller.Statement 3: B is an Engineer.B:Statement 1: Aabra ka Daabra.Statement 2: Atleast one of my statements is false.Statement 3: Daan a kun.C:Statement 1: A is a Doctor.Statement 2: B’s third statement is that, “D is a truth teller.” Statement 3: D is neither a Journalist nor an Engineer.D:Statement 1: C made exactly one true statement.Statement 2: Exactly two of us are truth tellers.Statement 3: C is a Journalist.Among A, B, C and D, at least one person of each tribe is present.Q.Which of the following groups consists of people from all the three tribes?a)ABCb)ABDc)CADd)Cannot be determinede)None of theseCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice CAT tests.
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