In each of the questions below, two statements are given followed by conclusions /group of conclusions numbered I and II. You have to assume all the statements to be true even if they seem to be at variance from the commonly known facts and then decide which of the given two conclusions logically follows from the information given in the statements.

Statements
No manager is a teacher.
All teachers are researchers.

Conclusions
I. No researcher is a teacher.
II. No researcher is a manager.
III. Some teachers are researchers.
IV. Some researchers are teachers.

None follows

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All follow

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Only II follows

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Only III and IV follow

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Solution

The correct option is D Only III and IV follow
No manager is a teacher.
All teachers are researchers.
$E + A \Rightarrow O_{1}$ -type of conclusion
Some researchers are not managers.
Conclusion III is the implication of the second premise.
Conclusion IV is the converse of the second premise.

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Similar questions

Q. In each of the questions below, two statements are given followed by conclusions /group of conclusions numbered I and II. You have to assume all the statements to be true even if they seem to be at variance from the commonly known facts and then decide which of the given two conclusions logically follows from the information given in the statements.

Statements
All scholars are teachers.
Some teachers are researchers.

Conclusions
I. All scholars are researchers.
II. Some scholars are researchers.
III. Some researchers are teachers.
IV. Some teachers are scholars.

Q. Two statements are given followed by four conclusions. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You are to decide which of the given conclusions if any, follow from the given statements.

Statements
Some teachers are students.
All students are girls.

Conclusions
I. All teachers are girls.
II. Some girls are teachers.
III. Some girls are students.
IV. All students are teachers.

In each of the questions below are given four statements followed by four conclusions numbered I, II, III and IV. You have to take the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.

Statements
Some doctors are lawyers.
All teachers are lawyers.
Some engineers are lawyers.
All engineers are businessmen.

Conclusions
I. Some teachers are doctors.
II. Some businessmen are lawyers.
III. Some businessmen are teachers.
IV. Some lawyers are teachers.

Q. In each of the following questions, two statements are given followed by two/four conclusions I, II, III and IV. You have to consider the two statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions if any, follow from the given statements.

Statements
All teachers are experienced.
Some teachers are spinsters.

Conclusions
I. Some experienced are spinsters.
II. Some spinsters are experienced.

Q. In each of the following questions, one/three statements are given followed by two/three/ four conclusions/assumptions I, II, & IV. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follow the given statements

Statements
All men are bachelors.
Some bachelors are teachers.
Some teachers are spiritual.

Conclusion
I. All men are spiritual.
II. Some teachers are spiritual.
III. Some men are spiritual.
IV. All teachers are spiritual.

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The correct option is D Only III and IV followNo manager is a teacher. All teachers are researchers. E+A⇒O1-type of conclusion Some researchers are not managers. Conclusion III is the implication of the second premise. Conclusion IV is the converse of the second premise.

The correct option is D Only III and IV follow
No manager is a teacher.
All teachers are researchers.
$E + A \Rightarrow O_{1}$ -type of conclusion
Some researchers are not managers.
Conclusion III is the implication of the second premise.
Conclusion IV is the converse of the second premise.