Question

    In each of the following questions one number is wrong. Find the wrong number.

    3         6         18       

     149         602         15057
    A 6 Correct Answer Incorrect Answer
    B 18 Correct Answer Incorrect Answer
    C 149 Correct Answer Incorrect Answer
    D 602 Correct Answer Incorrect Answer
    E 15057 Correct Answer Incorrect Answer

    Solution

    The series is 3 × 1² + 3 = 6, 6  ×  2 + 4 = 16, 16  ×  3² + 5 = 149, 149 × 4 + 6 = 602, 602 × 5² + 7 = 15057,... Therefore it should be 16 in place of 18.

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