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    Question

    Find the wrong number in the series:

    16, 18, 39, 111, 489,

    2451
    A 111 Correct Answer Incorrect Answer
    B 18 Correct Answer Incorrect Answer
    C 489 Correct Answer Incorrect Answer
    D 2451 Correct Answer Incorrect Answer

    Solution

    16 × 1 + 2 = 18 18 × 2 + 3 = 39 39 × 3 + 4 = 121 121 × 4 + 5 = 489 489 × 5 + 6 = 2451

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