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  1. Which one of the following is the common factor of (4743 + 4343) and (4747 + 4347) 

    2. A.

    (47 - 43)
    B.

    (47 + 43)
    C.

    (4743 + 4343)
    D.

    None of these

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    Answer : Option B

    Explanation :

      When n is odd, (xn + an) is always divisible by (x + a).

     

    Each one of (4743 + 4343) and (4747 + 4347) is divisible by (47 + 43).

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