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

    Question

    In the following question below are given some statements

    followed by some conclusions based on those statements. Taking 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 conclusion logically follows the given statements. Statements: Some L are M. All M are O. No L is N. Conclusions: I. Some O are not N. II. No M is N. III. Some O is L.
    A Only Conclusion II follows Correct Answer Incorrect Answer
    B Only Conclusions I and II follow Correct Answer Incorrect Answer
    C None of the above Conclusions follow Correct Answer Incorrect Answer
    D Only Conclusions I and III follow Correct Answer Incorrect Answer

    Solution

    Some L are M (I) + All M are O (A) → Some L are O (I) → Conversion → Some O are L (I) + No L is N (E) → Some O are not N. Hence conclusion I follows.

    Some L are M (I) → Conversion → Some M are L (I) + No L is N (E) → Some M are not N (O) + No N is L (E) → No conclusion. Hence conclusion II does not follow.

    Some L are M (I) + All M are O (A) → Some L are O (I) → Conversion → Some O are L (I). Hence conclusion III follows.

    Practice Next

    Relevant for Exams: