Question

    In each of the questions below are given four statements followed by four conclusions numbered I, II and III and IV. 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 given conclusions logically follows from the given statements disregarding commonly known facts.

    Statement : No stool is a desk. Some

    desk are tables. All tables are chairs. Some chairs are benches. Conclusion :      No chair is a stool. Some benches are desks. Some desks are chairs. Some desks are stools.
    A Only I and III follow Correct Answer Incorrect Answer
    B Only II and III follow Correct Answer Incorrect Answer
    C Only I, II and III follow Correct Answer Incorrect Answer
    D Only III follows. Correct Answer Incorrect Answer

    Solution

    E + I = O*. Hence, conclusion I will not follow. Some desks are tables (I) + All tables are chairs (A) ⇒ Some desks are chairs (I) + Some chairs are benches (I) ⇒ No conclusion. Hence, conclusion II will not follow. Some desks are tables (I) + All tables are chairs (A) ⇒ Some desks are chairs (I) ⇒ Hence, conclusion III will  follow.  No stool is a desk (E) ⇒ conversion ⇒ Some desks are not stools (O) Hence, conclusion IV will not follow.

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