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

    Question

    In each question below are given three statements followed by three conclusions numbered I, II and III. You have to take the three 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. 

    Statement :  No cup is a saucer.      

                   Some saucer are cubes.                     All plates are cubes. Conclusion :        I. Some cubes are not cups.. II. At least some saucers are cups. III. No saucer is a plate.
    A Only I follows Correct Answer Incorrect Answer
    B Only II and III follows Correct Answer Incorrect Answer
    C Only III follows Correct Answer Incorrect Answer
    D Only I and II follows Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    No cup is a saucer (E) + Some saucer are cubes (I) ⇒ Some cubes are not cups.(O*) . Hence conclusion I follows. No cup is a saucer (E) ⇒ Conversion ⇒ No saucer is a cup(E). Hence conclusion II does not follow. Some saucer are cubes (I) + Some cubes are plates (I) ⇒ No conclusion. Hence conclusion III does not follow.

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