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    Question

    If we start a series with the value of √A and it follows the same pattern as given in the series,then what is (A-21)th term in the series.

    A-5,   A,   35,   52,  78,  115

    A 37 Correct Answer Incorrect Answer
    B 25 Correct Answer Incorrect Answer
    C 65 Correct Answer Incorrect Answer
    D 45 Correct Answer Incorrect Answer
    E none of these Correct Answer Incorrect Answer

    Solution

    ATQ, So, (A-5) value will be 20 and  A = 25 . Now the series will start from √A = √25 = 5, So series will start from 5 Now it follows the same pattern as the given above so, 5 +5 = 10 10 + 10 = 20 20 + 17 = 37 37+26 = 63 So the (A-21)th term = (25-21)th = 4th terrm will be = 37

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