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    Question

    Three statements are given, followed by three

    conclusions numbered I, II and III. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements. Statements: Some Curtain is Wall. No Wall is Rod. No Curtain is Door. Conclusions: Β  I. No Rod is Door. Β  II. Some Wall is not Door. Β  III. Some Curtain is not Rod
    A Only conclusion III follows Correct Answer Incorrect Answer
    B Only conclusions I and II follow Correct Answer Incorrect Answer
    C Only conclusions II and III follow Correct Answer Incorrect Answer
    D Only conclusions I follows Correct Answer Incorrect Answer

    Solution

    Some Curtain is Wall (I) + No Wall is Rod (E) β†’ Some Curtain is not Rod (O). No Curtain is Door (E) β†’ Conversion β†’ No Door is Curtain (E) + Some Curtain is not Rod (O) β†’ No conclusion. Hence conclusion I does not follow. No Curtain is Door (E) β†’ Conversion β†’ No Door is Curtain (E) + Some Curtain is Wall (I) β†’Β  Some Wall is not Door (O*). Hence conclusion II follows. Some Curtain is Wall (I) + No Wall is Rod (E) β†’ Some Curtain is not Rod (O). Hence conclusion III follows.

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