Question
660, 653, 639, 618, 590,
? Find the missing number in the following number series: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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