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    Question

    If   7        43       x        1311    

      5247            15739 Then, x - x/2 + 2 = ? In each of the following questions a number series is given.  One term of the series is denoted by  X . You have to calculate the value of  X and by using the value of  X,  you have  to replace the question mark (?) in the following questions :
    A 122.5 Correct Answer Incorrect Answer
    B 21.25 Correct Answer Incorrect Answer
    C 181.25 Correct Answer Incorrect Answer
    D 133.5 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    7 × 7 - 6 = 43  43 × 6 + 5 = 263  263 × 5 - 4 = 1311  1311 × 4 + 3 = 5247 5247 × 3 - 2 = 15739 Hence, x = 263  Hence, 263 - 263/2 + 2  = 263 - 131.5 + 2 = 263 - 129.5 = 133.5

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