Question
What number should come next?
61 57 50 61 43 36 61
61 57 50 61 43 36 61
Answer: Option A
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This is an alternating repetition series, in which a random number, 61, is interpolated as every third number into an otherwise simple subtraction series. Starting with the second number, 57, each number (except 61) is 7 less than the previous number.
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