What are the next three digits in this sequence:
7 · 3 · 1 · 8 · 2 · 8 · 5 · 3 · 1 · 5 · 3 · 0 · 3 · 3 · 1 · 4 · 3 · 0 · ? · ? · ?
Puzzle Copyright © Kevin Stone
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Answer
4 3 1.
Reasoning
This is the sequence of the length of the name of the month, and the number of days in that month.
7 3 1 = January, which has 7 letters, and 31 days.
8 2 8 = February, which has 8 letters, and 28 days.
5 3 1 = March, which has 5 letters, and 31 days.
5 3 0 = April, which has 5 letters, and 30 days.
3 3 1 = May, which has 3 letters, and 31 days.
4 3 0 = June, which has 4 letters, and 30 days.
Which means the next three digits are:
4 3 1 = July, which has 4 letters, and 31 days.