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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. 

    Statement: Some mad are sad. Only a few

    sad are bad. All bad are lad. No lad is dad.     All dad are gad.   Conclusions: All sad may be lad.  All lad can be gad. Some mad can be lad. Some dad being bad is a possibility.
    A Only II follow Correct Answer Incorrect Answer
    B Both I and IV follow Correct Answer Incorrect Answer
    C Both I and III follows Correct Answer Incorrect Answer
    D AlI I, II and III follows Correct Answer Incorrect Answer
    E None follows Correct Answer Incorrect Answer

    Solution

    Some sad are bad (I) + All bad are lad (A) → Some sad are lad (I) → Probable conclusion → All sad may be lad (A). Hence conclusion I follows. No lad is dad (E) + All dad are gad (A) → Some gad are not lad (O) → Probable conclusion → All lad may be gad (A). Hence conclusion II follows. Some sad are bad (I) + All bad are lad (A) → Some sad are lad (I) + Some lad are bad (I) → Probable conclusion → Some mad can be lad (I). Hence conclusion III follows. All bad are lad (A) + No lad is dad (E) → No bad is dad (E). Hence conclusion IV does not follow. Alternate Method -

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