Logical Reasoning 1 Solved Past Papers 2024 – 2024 Archives

Logical Statements & Negation Past Papers

Solved past paper MCQs for Logical Statements & Negation from official UHS, NUMS, SZABMU, DUHS, and KMU examinations. Includes verified distractor autopsies and step-by-step cognitive explanations.

Boards Included: SZABMU
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#1 of 1 FMDC 2024 / SZABMU 2024
[FMDC 2024 / SZABMU 2024]

"All practical numbers are even" is a false statement. Then the true statement is:
A
All practical numbers are odd
B
Some practical numbers are not even
C
Some practical numbers are even
D
Some practical numbers are not odd
View Answer & Propolis Autopsy
Correct Key: Option B Diagnostic Explanation
Concept: Formal Logical Negation.

Formula: \(\neg(\forall x, P(x)) \iff \exists x, \neg P(x)\)

Solution: The logical negation of 'All A are B' is 'Some A are not B' (Option B).

Why other options are incorrect:

• Option A: Makes a contrary universal claim rather than a strict logical negation.
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