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    Question

    Statements: Some tubes are paste. All

    paste are colgate. Some colgate are mouthwash Conclusion: I. Some tubes are mouthwash. II. Some tubes are colgate. III. Some colgate are paste. IV. No mouthwash is tube In each question below some statements followed by four conclusions numbered I, II, III and IV are given. 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.
    A Only II and III follow Correct Answer Incorrect Answer
    B Either only I or II, III and IV follow Correct Answer Incorrect Answer
    C Either only I or IV, and II and III follow Correct Answer Incorrect Answer
    D All follow Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Some tubes are paste(I) + All paste are colgate(A) ⇒ Some tubes are colgate(I) + Some colgate are mouthwash(I) ⇒ No conclusion. Hence neither conclusion I nor IV follows but they will form a complementary pair. Hence either conclusion I or IV follows. Some tubes are paste(I) + All paste are colgate(A) ⇒ Some tubes are colgate(I). Hence conclusion II follows. All paste are colgate(A) ⇒ Convserion ) ⇒ Some colaget are pastes(I). Hence conclusion III follows. ALTERNATE SOLUTION:

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