Statements: 1. All A are B. 2. Some A are C. Conclusions: I. Some B are C. II. Some C are A. Which conclusion(s) logically follow? MCQ with Answer and Explanation
Statements:
1. All A are B.
2. Some A are C.
Conclusions:
I. Some B are C.
II. Some C are A.
Which conclusion(s) logically follow?
A. Only conclusion II follows
B. Neither I nor II follows
C. Both I and II follow
D. Only conclusion I follows
Answer: Option C
Solution (By JKSSB Mock Tests)
Since some A are C, and all A are inside B, the intersection of A and C must also be inside B, meaning some B are C (I). 'Some A are C' directly implies its reverse 'Some C are A' (II). Both follow.
Statement: This medicine is effective only if taken with warm water. Conclusions: I. Taking with cold water reduces its effect. II. It cures all diseases.
Explanation:
I cannot be concluded because the statement does not mention cold water; it only states condition for effectiveness. II is a gross exaggeration. Neither follows.
Statement: After collision of two vessels in the sea all the crewmen and passengers are declared as missing - A news report.
Conclusions:
I. No one from the two vessels has survived after the collision.
II. A few persons from the two vessels may have survived and are missing.
Explanation:
Conclusion I follows because 'declared missing' in such contexts implies no survivors have been found, so it can be concluded that no one survived. Conclusion II is contradictory; if some may have survived, they would not all be declared missing without hope.
Statement:
All employees of this company are highly educated.
Conclusions:
I. The company only hires individuals with advanced degrees.
II. An uneducated person cannot be an employee of this company.
Which conclusion(s) logically follow?
Explanation:
The statement says all current employees are highly educated, which implies an uneducated person is not among them (Conclusion II follows). However, 'highly educated' does not necessarily mean 'advanced degrees' (Ph.D., Master's, etc.), so Conclusion I is an over-assumption.
No comments yet. Be the first to start the discussion!