Question

    Find out the wrong number in the following number series.

    105      112      133       168      216      280      357

    A 280 Correct Answer Incorrect Answer
    B 112 Correct Answer Incorrect Answer
    C 105 Correct Answer Incorrect Answer
    D 216 Correct Answer Incorrect Answer
    E 168 Correct Answer Incorrect Answer

    Solution

    105 + (7 × 1) = 112 112 + (7 × 3) = 133 133 + (7 × 5) = 168 168 + (7 × 7) =  217 217 + (7 × 9) = 280 280 + (7 × 11) = 357

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