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    Question

    In each of the questions below are given four statements followed by four conclusions numbered I, II and III and IV. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of given conclusions logically follows from the given statements disregarding commonly known facts .

    Statements: Some Clouds are

    fogs. Some fogs are nights. All nights are noons. All noons are rains. Conclusions: I. Some rains are nights. II. Some Clouds are nights. III. Some fogs are rains. IV. Some fogs are noons.
    A None follows Correct Answer Incorrect Answer
    B I, II and III follow Correct Answer Incorrect Answer
    C II, III and IV follow Correct Answer Incorrect Answer
    D I, III and IV follow Correct Answer Incorrect Answer
    E All follow Correct Answer Incorrect Answer

    Solution

    All nights are noons. (A) + All noons are rains. (A) = All nights are rains. (A) ⟹ Conversion ⟹ Some rains are nights. (E) Hence, conclusion I will follow. Some fogs are noons. (I) + All noons are rains. (A) = Some fogs are rains. (I) Hence, Conclusion III will follow. Some fogs are nights. (I) + All nights are noons. (A) = Some fogs are noons. (I) Hence, Conclusion IV will follow.

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