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    Question

    35       36         68         

    207          836          4205 In each of these questions a number series is given. In each series only one number is wrong. Find the wrong number.
    A 36 Correct Answer Incorrect Answer
    B 68 Correct Answer Incorrect Answer
    C 207 Correct Answer Incorrect Answer
    D 836 Correct Answer Incorrect Answer
    E 4205 Correct Answer Incorrect Answer

    Solution

    The series is 35 × 1 + 1² = 36, 36 × 2 - 2² = 68,  68 × 3 + 3² = 213, 213 × 4 - 4² = 836, 836 × 5 + 5² = 4205 Hence there should be 213 in place of 207.

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