New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    In the question below some statements are given

    followed by three conclusions I, II, and III. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusion definitely follows from the given statements, disregarding commonly known facts. Statements: All Parrots are Sparrows Some Trees are Parrots No Sparrow is Bird. Conclusions: I. No Parrot is Bird. II. Some Trees are not Birds. III. Some Sparrows are Trees.
    A Only Conclusion I and III follow Correct Answer Incorrect Answer
    B Only Conclusion II and III follow Correct Answer Incorrect Answer
    C Only Conclusion I and II follow Correct Answer Incorrect Answer
    D All Conclusions I, II and III follow Correct Answer Incorrect Answer

    Solution

    All Parrots are Sparrows (A) + No Sparrow is Bird (E) → No Parrot is Bird (E). Hence conclusion I follows. Some Trees are Parrots (I) + No Parrot is Bird (E) → Some Trees are not Birds (O). Hence conclusion II follows. Some Trees are Parrots (I) + All Parrots are Sparrows (A) → Some Trees are Sparrows (I) → Conversion → Some Sparrows are Trees (I). Hence conclusion III follows.

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