61, 57, 50, 61, 43, 36, 61, ... choose which pair of numbers comes next?
Solution
Correct Answer: Option E
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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