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    Question

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

    Statements:

     All microscopes are telescopes

    No telescope is a screw

    All screws are rockets

    Conclusions: 

     I. Some telescope are not rockets

     II. Some rockets can never be microscope

    A If only conclusion I follows. Correct Answer Incorrect Answer
    B If only conclusion II follows. Correct Answer Incorrect Answer
    C If either conclusion I or II follows. Correct Answer Incorrect Answer
    D If neither conclusion I nor II follows. Correct Answer Incorrect Answer
    E If both conclusions I and II follow. Correct Answer Incorrect Answer

    Solution

    No telescope is a screw (E) + All screws are rockets (A) → Some rockets are not telescopes (O*). Hence conclusion I does not follow. All microscopes are telescopes (A) + No telescope is a screw (E) → No microscope is a screw (E) + All screws are rockets (A) → Some rockets are not microscope (O*). Hence conclusion II follows.

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