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

    Question

    In each of the questions below are given two statements followed by two conclusions numbered I and II. 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. Give answer

    Statements:No town is a city. All cities are

    islands. Conclusions:I. No island is a town.   II. All islands are cities.
    A Only I follow. Correct Answer Incorrect Answer
    B Only II follows. Correct Answer Incorrect Answer
    C Either I or II follows. Correct Answer Incorrect Answer
    D Neither I nor II follows. Correct Answer Incorrect Answer
    E Both I and II follows. Correct Answer Incorrect Answer

    Solution

    No town is a city (E) + All cities are islands (A) ⇒ Some islands are not towns(O*).  Hence conclusion I does not follow. All cities are islands(A)⇒ Conversion⇒ Some islands are cities(I). Hence conclusion II does not follow. Alternate Method:

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