mdcat logical reasoning MCQ #1050

Either X is true or Y is false. X is false. What must be true?

mdcat logical reasoning MCQ #1050

  1. Question 1

    Q1. Either X is true or Y is false. X is false. What must be true?

    • A) Y is false.
    • B) Y is true.
    • C) X is true.
    • D) X and Y are both false.

    Answer: Y is false.

    Explanation: Disjunctive syllogism: If ¬X, then Y must be false. USAT, HAT and MDCAT analytical sections repeat this pattern.