alleryIn the 19-year Metonic cycle, how many years have 13 lunar months?
A3
B12
C19
D7
Answer & Solution
Correct answer: D. 7
1. 12 years have 12 lunar months.
2. The remaining 19 - 12 = 7 years have 13 lunar months.
3. Check: 12 x 12 + 7 x 13 = 235 lunations, which is about 19 years.
_Source: Wikipedia, Month, Calendrical consequences_
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