Statements: Some chairs are tables. Some tables are doors. Conclusions: I. Some chairs are doors. II. No chair is a door.

Correct answer: C. Either I or II is true

Neither conclusion is certain, but they are about the same two groups and one of them must be true (some chairs are doors, or none are). This is an either-or case.

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Answer and explanation

The correct answer is C. Either I or II is true

Neither conclusion is certain, but they are about the same two groups and one of them must be true (some chairs are doors, or none are). This is an either-or case.

Topic: Syllogism MCQs · Subject: Reasoning