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

    Question

    In the question below there are three statements followed by two conclusions I and II. You have to take the three given statements to be true even if they seem to be at variance from commonly known facts and then decide which of the given conclusions logically follows from the three statements disregarding commonly known facts.

    Statements: No curtain is wall. None of

    the walls is windows. All windows are roofs. Conclusions: I. Mostly roofs being walls is a possibility. II. Some windows are curtains.
    A Only conclusion I follows Correct Answer Incorrect Answer
    B Only conclusion II follows Correct Answer Incorrect Answer
    C Neither conclusion I nor conclusion II follows Correct Answer Incorrect Answer
    D None of these Correct Answer Incorrect Answer
    E Both conclusion I and conclusion II follow. Correct Answer Incorrect Answer

    Solution

    None of the walls is windows (E) + All windows are roofs (A) → Some roofs are not walls (O*) → Probable conclusion → All roofs may be walls (A). Hence conclusion I follows. No curtain is wall (E) + None of the walls is windows (E) → No conclusion. Hence conclusion II does not follow.

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