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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. Some Mermaids are not Sharks.

    II. Every Sharks can be Dolphins. Statements:
    A All Sharks are Ships. Only a few Sharks are Dolphins. Some Dolphins are Mermaids. Correct Answer Incorrect Answer
    B All Mermaids are Dolphins. Only a few Dolphins are Ships. Some Ships are Sharks. Correct Answer Incorrect Answer
    C Only a few Dolphins are Sharks. No Shark is a Ship. Few Ships are Mermaids. Correct Answer Incorrect Answer
    D All Dolphins are Ships. No Dolphin is a Mermaid. All Mermaids are Sharks. Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    From Statement I. Only a few Sharks are Dolphins (I) + Some Dolphins are Mermaids (I) → No conclusion. Hence conclusion I does not follow. Only a few Sharks are Dolphins → Some Sharks are Dolphins (I). Hence conclusion II does not follow.   From Statement II. All Mermaids are Dolphins (A) + Only a few Dolphins are Ships (I) → No conclusion. Hence conclusion I does not follow. Only a few Dolphins are Ships (I) + Some Ships are Sharks (I) → Probable conclusion → All Sharks can be Dolphins (I). Hence conclusion II follows.   From Statement III. No Shark is a Ship (E) + Few Ships are Mermaids (I) → Some Mermaids are not Sharks (O*). Hence conclusion I follows. Only a few Dolphins are Sharks → All Sharks can be Dolphins (I). Hence conclusion II follows. From Statement IV. All Mermaids are Sharks (A) → I.I. → Some Mermaids are Sharks (I). Hence conclusion I does not follow. No Dolphin is a Mermaid (E) + All Mermaids are Sharks (A) → Some Sharks are not Dolphins (O*) + All Dolphins are Ships (A) → Probable conclusion → All Sharks can be Dolphins (I). Hence conclusion II follows.

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