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      Question

      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 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. 
      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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