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Next CSE-PPT: 14 March 2027

World MCQ ForumPhilippines

All squares are rectangles. All rectangles are quadrilaterals. Which statement must be FALSE?

Correct answer: B. Some squares are not quadrilaterals.

Since every square is a rectangle and every rectangle is a quadrilateral, every square is a quadrilateral. So "some squares are not quadrilaterals" contradicts the statements and must be false.

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Answer and explanation

The correct answer is B. Some squares are not quadrilaterals.

Since every square is a rectangle and every rectangle is a quadrilateral, every square is a quadrilateral. So "some squares are not quadrilaterals" contradicts the statements and must be false.

Topic: Syllogisms and Deductive Reasoning MCQs · Subject: Analytical Ability