In this question, three statements are given, followed by two conclusions numbered I and II. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follows/follow from the statements.
Statements:
I. No dean is a teacher.
II. All teachers are professors.
III. No professor is a lecturer.
Conclusions:
I. Some deans are lecturers.
II. Some teachers are lecturers.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Neither conclusion I nor II follows.
The Least possible Venn diagram will be :
Conclusion :
I. Some deans are lecturers. ⇒ False ( It is possible but not definite)
II. Some teachers are lecturers. ⇒ False ( It is possible but not definite)