1000+ Logic Questions with Answers Pdf - 1
Question: 1
In each questions below are given two statements followed by two conclusions numbered I and II.
1. Statements :
No bat is ball. No ball is wicket.
Conclusions :
I. No bat is wicket.
II. All wickets are bats.
(A) if only conclusion I follows
(B) if only conclusion II follows
(C) if either conclusion I or II follows
(D) if neither conclusion I nor II follows
(E) if both conclusions I and II follow
Ans: D
Since both the premises are negative, no definite conclusion follows.
Question: 2
In each questions below are given two statements followed by two conclusions numbered I and II.
Statements :
All mangoes are golden in colour. No golden coloured things are cheap.
Conclusions :
I. All mangoes are cheap.
II. Golden coloured mangoes are not cheap.
(A) if only conclusion I follows
(B) if only conclusion II follows
(C) if either conclusion I or II follows
(D) if neither conclusion I nor II follows
(E) if both conclusions I and II follow
Ans: B
Clearly, the conclusion must be universal negative and should not contain the middle term. So, it follows that No mango is cheap. Since all mangoes are golden in colour, we may substitute mangoes with golden coloured mangoes. Thus, II follows.
Question: 3
In each questions below are given two statements followed by two conclusions numbered I and II.
Statements :
All poles are guns. Some boats are not poles.
Conclusions :
I. All guns are boats.
II. Some boats are not guns.
(A) if only conclusion I follows
(B) if only conclusion II follows
(C) if either conclusion I or II follows
(D) if neither conclusion I nor II follows
(E) if both conclusions I and II follow
Ans: D
Clearly, the term guns is distributed in both the conclusions without being distributed in any of the premises. So, neither conclusion follows.
Question: 4
In each questions below are given two statements followed by two conclusions numbered I and II.
Statements :
No man is a donkey. Rajesh is a man.
Conclusions :
I. Rajesh is not a donkey.
II. All men are not Rajesh.
(A) if only conclusion I follows
(B) if only conclusion II follows
(C) if either conclusion I or II follows
(D) if neither conclusion I nor II follows
(E) if both conclusions I and II follow
Ans: A
Since on premise is negative, the conclusion must be negative. Conclusion II cannot follow as it contains the middle term. So, only I follows.
Question: 5
In each questions below are given two statements followed by two conclusions numbered I and II.
Statements :
All film stars are playback singers. All film directors are film stars.
Conclusions :
I. All film directors are playback singers.
II. Some film stars are film directors.
(A) if only conclusion I follows
(B) if only conclusion II follows
(C) if either conclusion I or II follows
(D) if neither conclusion I nor II follows
(E) if both conclusions I and II follow
Ans: E
Since both the premises are universal and affirmative, the conclusion must be universal affirmative and should not contain the middle term. So, I follows. II is the converse of the second premise and so it also holds.
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