1000+ Logic Questions with Answers Pdf - 2

Question: 6

In each questions below are given two statements followed by two conclusions numbered I and II.
Statements :
Some kings are queens. All queens are beautiful.
Conclusions :
I. All kings are beautiful.
II. All queens are kings.

(A) if only conclusion I follows

(B) if only conclusion II follows

(D) if neither conclusion I nor II follows

(E) if both conclusions I and II follow

View Answer

Ans: D

Since one premise is particular, the conclusion must be particular and should not contain the middle term.

Question: 7

In each questions below are given two statements followed by two conclusions numbered I and II.
Statements :
Some books are pens. No pen is pencil.
Conclusions :
I. Some books are pencils.
II. No book is pencil.

(A) if only conclusion I follows

(B) if only conclusion II follows

(D) if neither conclusion I nor II follows

(E) if both conclusions I and II follow

View Answer

Ans: C

As discussed above, the conclusion must be particular negative and should not contain the middle term. So, it follows that Some books are not pencils. However, I and II involve only the extreme terms and form a complementary pair. Thus, either I or II follows.

Question: 8

In each questions below are given two statements followed by two conclusions numbered I and II.
Statements :
All pens are roads. All roads are houses.
Conclusions :
I. All houses are pens.
II. Some houses are pens.

(A) if only conclusion I follows

(B) if only conclusion II follows

(D) if neither conclusion I nor II follows

(E) if both conclusions I and II follow

View Answer

Ans: B

Since both the premises are universal and affirmative, the conclusion must be universal affirmative and should not contain the middle term. So, it follows that All pens are houses. II is the converse of this conclusion and so it holds. Since the term houses is distributed in I without being distributed in any of the premises, so I does not follow.

Question: 9

In each questions below are given two statements followed by two conclusions numbered I and II.
Statements :
Most teachers are boys. Some boys are students.
Conclusions :
I. Some students are boys.
II. Some teachers are students.

(A) if only conclusion I follows

(B) if only conclusion II follows

(D) if neither conclusion I nor II follows

(E) if both conclusions I and II follow

View Answer

Ans: A

Since both the premise is particular, no definite conclusion follows. However, I is the converse of the second premise and thus it holds.

Question: 10

In each questions below are given two statements followed by two conclusions numbered I and II.
Statements :
Some men are educated. Educated persons prefer small families.
Conclusions :
I. All small families are educated.
II. Some men prefer small families.

(A) if only conclusion I follows

(B) if only conclusion II follows

(D) if neither conclusion I nor II follows

(E) if both conclusions I and II follow

View Answer

Ans: B

Since one premise is a particular, the conclusion must be particular and should not contain the middle term. Thus, only II follows.

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1000+ Logic Questions with Answers Pdf - 2

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