New SIDBI Grade A New Batch Starts on Nov 18

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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: 

    Only a few scale are erasers.      

    No eraser is a pen.       

    Only colours are pens.        

    Conclusion:

    Some erasers can be colours.       

    All colours being scale is a possibility.                     

    All scale being colours is a possibility.         

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

    Solution

    No eraser is a pen (E) + All pens are colours (A) → Some colours are not erasers (O*) → Probable conclusion → Some erasers can be colours (I). Hence conclusion I follows. Some scale are erasers (I) + No eraser is a pen (E) → Some scale are not pens (O) + Only colours are pens → No conclusion. Hence neither conclusion II nor III follow. Alternate Method -

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