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.

None follows

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Only II follows

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Only III follows

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Only II and IV follow

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None of these

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Solution

The correct option is D Only II and IV follow
All teachers are lawyers

Conversion
Some lawyers are teachers
(Conclusion IV follows)
We have, the statement given as
Some engineers are lawyers

Conversion
Some lawyers are engineers So, by using alignment property we find the mediate term Some lawyers are engineers (I-type)
All engineers are businessmen (A-type)
$I + A \to I - (t y p e)$
Some lawyers are businessmen

Conversion Some businessmen are lawyers conclusions III follows.

So, only II and IV follow.

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Similar questions

Q. Some statements are given, followed by some conclusions. Consider the statements to be true even if they seem to be at variance from commonly known facts. Decide which of the given conclusions follow from the given statements.

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 the question, four statements are given, followed by four conclusions. Consider the statements to be true even if it seems to be at variance from commonly known facts. Decide which of the given conclusions, if any, follow(s) from the given statements.

Statements

:

Some doctors are advocates.
All teachers are advocates.
Some engineers are advocates.
All engineers are businessmen.

Conclusions

:

1.

Some teachers are doctors.

2.

Some businessmen are advocates.

3.

Some businessmen are teachers.

4.

Some advocates are teachers.

Some statements are given, followed by some conclusions. Consider the statements to be true even if they seem to be at variance from commonly known facts. Decide which of the given conclusions follow from the given statements.

Statements:

All writers are readers.

All lawyers are readers.

Conclusions:

I. Some lawyers are writers.

II. Some readers are writers.

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.

Q. In each question below are given two or three statements followed by two conclusions numbered I and II. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and decide which of the given conclusions logically follows from the given statements, disregarding commonly known facts. Give answer
Statements: All doctors are perfect.
All engineers are perfect.
Conclusions I. There is a possibility that some doctors are engineers
II. All perfects are either doctors or engineers.

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