mdcat logical reasoning MCQ #448

A survey states, 'All smokers have reduced lung capacity.' Ahmed has normal lung capacity. Thus:

mdcat logical reasoning MCQ #448

  1. Question 1

    Q1. A survey states, 'All smokers have reduced lung capacity.' Ahmed has normal lung capacity. Thus:

    • A) Ahmed is a non-smoker.
    • B) Ahmed recently quit smoking.
    • C) Smoking is harmless.
    • D) Lung capacity varies genetically.

    Answer: Ahmed is a non-smoker.

    Explanation: Denying the consequent (modus tollens) is valid. Option B introduces irrelevant detail.