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What are the next three numbers in this series?
3, 7, 12, 14, 16, 19, 21, ?, ?, ?
3, 7, 12, 14, 16, 19, 21, ?, ?, ?
Answer
These are numbers that can be written with exactly three Roman Numerals.3 = III, 7 = VII, 12 = XII, 14 = XIV, 16 = XVI, 19 = XIX, 21 = XXI
thus
25 = XXV, 30 = XXX, 41 = XLI
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