What is the equivalent of 47 min. 20 sec. in arc units?
Official USCG Answer & Rule Citation
Correct Answer: Option B — 11°50'
Multiplying time by 15 degrees per hour converts time to arc. Forty-seven minutes multiplied by 15 gives 705 arcminutes (11 degrees 45 minutes), and 20 seconds yields 5 arcminutes, producing a total of 11 degrees 50 minutes.
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