1, 50, 6, 45, 11, 40, 16, 35, 21, ?, ?
Which numbers should replace the question marks?
Answer:
30, 26: there are two alternate sequences. Add 5 starting at 1. Subtract 5 starting at 50.
Answer:
30, 26: there are two alternate sequences. Add 5 starting at 1. Subtract 5 starting at 50.
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