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    Question

    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 :

    If   204       196       223     x  

    284 Then, what is the average of the numbers of the above series?
    A 213.2 Correct Answer Incorrect Answer
    B 146.2 Correct Answer Incorrect Answer
    C 163.8 Correct Answer Incorrect Answer
    D 292.5 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    204 (-2³),   196 (+3³),   223 (-4³),  159  (+5³),   284 Hence, x= 159 Hence, average = (204+196+223+159+284)/5 = 1066/5 = 213.2

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