mdcat logical reasoning MCQ #910

Given 'All X are Y' and 'No Y is Z', which conclusion is valid?

mdcat logical reasoning MCQ #910

  1. Question 1

    Q1. Given 'All X are Y' and 'No Y is Z', which conclusion is valid?

    • A) All X are Z
    • B) No X is Z
    • C) Some X are Z
    • D) Some X are not Y

    Answer: No X is Z

    Explanation: B follows by syllogism. A contradicts premises via transitivity. USAT, HAT and MDCAT analytical sections repeat this pattern.