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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 16 15 26 69 260 x,

    Find 75% of x+ x

    A 2,421.25 Correct Answer Incorrect Answer
    B 2,521.25 Correct Answer Incorrect Answer
    C 2,781.25 Correct Answer Incorrect Answer
    D 2,231.25 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    16 × 1 - 1², 15 × 2 - 2², 26 × 3 - 3², 69 × 4 - 4², 260 × 5 - 5², 1,275 Hence, x= 1,275 Hence, 75% of x+ x=956.25 + 1,275 = 2,231.25

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