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    Question

    660, 653, 639, 618, 590,

    ? Find the missing number in the following number series:
    A 555 Correct Answer Incorrect Answer
    B 549 Correct Answer Incorrect Answer
    C 527 Correct Answer Incorrect Answer
    D 510 Correct Answer Incorrect Answer

    Solution

    The series follows the pattern: 660 – 6 × 1 = 653 653 – 6 × 2 = 639 639 – 6 × 3 = 618 618 – 6 × 4 = 590 590 – 6 × 5 = 555

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