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    Question

    The questions below are based on the given series-I. The

    series-I satisfies a certain pattern, follows the same pattern in series-II and finds the wrong number in the series-II. I:  2, 3, 10, 39, 172, 885 II:  12, 13, 30, 99, 415, 2085      
    A 2085 Correct Answer Incorrect Answer
    B 415 Correct Answer Incorrect Answer
    C 99 Correct Answer Incorrect Answer
    D 30 Correct Answer Incorrect Answer
    E 13 Correct Answer Incorrect Answer

    Solution

    Answer: B Series – I pattern: 2 * 1 + 12 = 3 3 * 2 + 22 = 10 10 * 3 + 32 = 39 39 * 4 + 42 = 172 172 * 5 + 52 = 885 Series – II pattern: 12 * 1 + 12 = 13 13 * 2 + 22 = 30 30 * 3 + 32 = 99 99 * 4 + 42 =  412 412 * 5 + 52 = 2085 The wrong number is  415

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