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    Question

    In the question below some statements are given some conclusions followed by some statements. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read the conclusions and then decide which of the following statement is true for given conclusions.

    Conclusions: I. No Ocean is a Sea.

    II. Some Plateaus are not Oceans. Statements:
    A No Sea is a River. Some River are Plateaus. Some Plateaus are Oceans. Correct Answer Incorrect Answer
    B Only River are Seas. No River is a Plateaus. Only a few Plateaus are Oceans. Correct Answer Incorrect Answer
    C All Seas are Plateaus. No Plateaus is a River. Some River are Oceans. Correct Answer Incorrect Answer
    D No Oceans is a Plateaus. A few Plateaus are Seas. A few Seas are River. Correct Answer Incorrect Answer
    E None of the above Correct Answer Incorrect Answer

    Solution

    From Statement I. No Sea is a River (E) + Some River are Plateaus (I) → Some Plateaus are not Seas (O*) + Some Plateaus are Oceans (I) → No conclusion. Hence conclusion I does not follow. Some Plateaus are Oceans (I) → Conversion → Some Oceans are Plateaus (I) → Probable conclusion → Some Plateaus are Oceans (O). Hence conclusion II follows. From Statement II. Only River are Seas → All Seas are River and Seas can have negative relation with anyone. Hence conclusion I follows. Only a few Plateaus are Oceans → Some Plateaus are not Oceans (O). Hence conclusion II follows. From Statement III. All Seas are Plateaus (A) + No Plateau is a River (E) → No Sea is a River (E) + Some River are Oceans (I) → Some Oceans are nor Seas (O*). Hence conclusion I does not follow. No Plateau is a River (E) + Some River are Oceans (I) → Some Oceans are not Plateaus (O*). Hence conclusion II does not follow. From Statement IV. No Ocean is an Plateau (E) + A few Plateaus are Seas (I) → Some Seas are not Oceans (O*). Hence conclusion I does not follow. No Ocean is a Plateau (E) → Conversion → Some Plateaus are not Oceans (O). Hence conclusion II follows.

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