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. 

    Statements: No den is a shelter.

                                    All shelters are sheds.

                                    No shed is a cave.

    Conclusions:       I. Some caves are shelters.

    II. All sheds being shelters is a possibility.

    III. Some caves are sheds.

    A All follows Correct Answer Incorrect Answer
    B I and III follow Correct Answer Incorrect Answer
    C II and III follows Correct Answer Incorrect Answer
    D Only II follows Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    A + E = E. E type is a negative proposition from which no positive definite conclusion can be derived. Hence, conclusion I will not follow. All shelters are sheds (A) ⇒ Probable conclusion ⇒ All sheds may be shelters(A). Hence, conclusion II will follow. No shed is a cave(E) ⇒ conversion ⇒ Some caves are not sheds(O). Hence, conclusion II does not follow.

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