Statements: Only floors are rooms. Some halls are floors. All halls are buildings. Conclusions: I. No room being building is a possibility. II. Some rooms are not halls.

Question

PYQPulse · Accepted Answer

If only conclusion II follows

PYQPulse · Answer

Explanation: Only floors→rooms ⇒ All rooms are floors. Some halls→floors. All halls→buildings. Conclusion I: 'No room being building' — possible (rooms=floors, halls=buildings∩floors, but not all rooms are halls) ✓ as possibility? Actually rooms=floors; some floors=halls; halls=buildings. So some rooms(=floors)=buildings. No room being building is NOT a possibility ✗. Conclusion II: Some rooms are not halls — True since only 'some halls are floors' and all rooms are floors.

Statements: Only floors are rooms. Some halls are floors. All halls are buildings. Conclusions: I. No room being building is a possibility. II. Some rooms are not halls.

Answer: B. If only conclusion II follows

Explanation

Statements: Only floors are rooms. Some halls are floors. All halls are buildings. Conclusions: I. No room being building is a possibility. II. Some rooms are not halls.

Answer: B. If only conclusion II follows

Explanation