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

    Question

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

    Statements: Some TVs are laptops. Some

    laptops are computers. All computers are mobiles. All mobiles are radios. Conclusions: I. Some computers are TVs. II. Some mobiles are laptops. III. All computers are radios
    A None follows Correct Answer Incorrect Answer
    B Only I and II follow Correct Answer Incorrect Answer
    C Only II and III follow Correct Answer Incorrect Answer
    D Only I, II and III follow Correct Answer Incorrect Answer

    Solution

    Some TVs are laptops(I) +  Some laptops are computers (I) = No conclusion.   Hence I does not follow.                      Some laptops are computers. (I)+ All computers are mobiles. (A)= Some laptops are mobile. (I) ⇒ Conversion  ⇒   Some mobiles are laptops. (I) Hence II follows. All computers are mobile. (A)+ All mobile are radios. (A) = All computers are  radios.  Hence III follows.

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