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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 20 x 46 147 604 3045 Then, x% of 25 =

    ?
    A 4.25 Correct Answer Incorrect Answer
    B 5.25 Correct Answer Incorrect Answer
    C 5.63 Correct Answer Incorrect Answer
    D 3.25 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    20 × 1 + 1² = 21 21 × 2 + 2² = 46 46 × 3 + 3² = 147 147 × 4 + 4² = 604 604 × 5 + 5² = 3045 Hence, x = 21 Hence, 25×21/100 = 21/4 = 5.25

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