Syllogism Deduction

CMAT 2018 · Logical Reasoning · Easy · Syllogism

All students are young; some young are short; all short are stout; most stout are clever; all clever are courageous, then which of the following is most definitely false?

  1. A.

    Some students are stout

  2. B.

    Some young are courageous

  3. C.

    Most stout are courageous

  4. D.

    All stout are courageous

Answer

D

Explanation

'Most stout are clever' and 'all clever are courageous' implies only some/most stout are courageous, not necessarily all. Claiming 'All stout are courageous' is definitely false.

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