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Statements: Some houses are offices. Some offices are schools. Conclusions: Some schools are houses. Some offices are houses. No house is school. Some schools are offices.

Only II and III follow
Only I and IV follow
Only either III or IV, and I follow
Only II and IV and either I or III follow.

Correct Answer: Only II and IV and either I or III follow.

Explanation:

Since both the premises are particular, no definite conclusion follows. However, I and III involve only the extreme terms and form a complementary pair. So, either I or III follows. II is the converse of the first premise while IV is the converse of the second premise. Thus, both of them hold.

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