Logical Deduction - Study Mode
[#96] Statements : Some dreams are nights. Some nights are days. Conclusions : I. All days are either nights or dreams. II. Some days are nights.
Correct Answer
(B) Only conclusion II follows
Explanation
Solution: Since both the premises are particular, no definite conclusion follows. However, II is the converse of the second premise and thus it holds.
[#97] Statements : All jungles are tigers. Some tigers are horses. Conclusions : I. Some horses are jungles. II. No horse is jungle.
Correct Answer
(C) Either I or II follows
Explanation
Solution: Since the middle term 'tigers' is not distributed even once in the premises, no definite conclusion follows. However, I and II involve only the extreme terms and form a complementary pair. So, either I or II follows.
[#98] Statements : All poles are guns. Some boats are not poles. Conclusions : I. All guns are boats. II. Some boats are not guns.
Correct Answer
(D) Neither I nor II follows
Explanation
Solution: Clearly, the term 'guns' is distributed in both the conclusions without being distributed in any of the premises. So, neither conclusion follows.
[#99] Statements : Many scooters are trucks. All trucks are trains. Conclusions : I. Some scooters are trains. II. No truck is a scooter.
Correct Answer
(A) Only conclusion I follows
Explanation
Solution: Since the first premise is particular, the conclusion must be particular and should not contain the middle term. Thus, only I follows.
[#100] Statements : Some papers are pens. Angle is a paper. Conclusions : I. Angle is not a pen. II. Angle is a pen.
Correct Answer
(C) Either I or II follows
Explanation
Solution: Since the middle term 'papers' is not distributed even once in the premises, no definite conclusion follows. However, I and II involve only the extreme terms and form a complementary pair. Thus, either I or II follows.