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    Question

    In each of the question below are given some statements followed by some conclusions. 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 the given conclusions logically follows from the given statements, disregarding commonly known facts. 

    Statements: No truck is a bus. All bus are

    train.   Only a few train are car. Conclusions: I. All bus may be car. II. All truck are train is a possibility. III. All car can be train.
    A Only II follow Correct Answer Incorrect Answer
    B Both I and II follow Correct Answer Incorrect Answer
    C Both II and III follows Correct Answer Incorrect Answer
    D AlI follows Correct Answer Incorrect Answer
    E None follows Correct Answer Incorrect Answer

    Solution

    All bus are train (A) + Some train are car (I) → Probable conclusion → All bus may be car (A). Hence conclusion I follows. No truck is a bus (E) + All bus are train (A) → Some trains are not truck (O*) → Probable conclusion → All truck may be train (A). Hence conclusion II follows. Some train are car (I) → Probable conclusion → All car may be train (A). Hence conclusion III follows. Alternate Method -

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