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

    Question

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

    Statements: No wire is a line.

    >                            All lines are modems. Conclusions: I. Some modems are wires.                        II. No modem may be line.
    A if only conclusion I follows. Correct Answer Incorrect Answer
    B if only conclusion II follows. Correct Answer Incorrect Answer
    C if either conclusion I or II follows. Correct Answer Incorrect Answer
    D if neither conclusion I nor II follows. Correct Answer Incorrect Answer
    E if both conclusions I and II follow Correct Answer Incorrect Answer

    Solution

    No wire is a line (E) + All lines are modems (A) ⇒ Some modems are not wires (O*). Hence, conclusion I does not follow. All lines are modems(A) ⇒ Probable conclusion ⇒ All modems may be lines (I). Hence, conclusion II does not follow.

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