A vessel steams 720 miles on course 058°T from LAT 30°06.0'S, LONG 31°42.0'E. What are the latitude and longitude of the point of arrival by mid-latitude sailing?

Correct Answer: Option B — LAT 23°44'S, LONG 43°07'E

Mid-latitude sailing formulas resolve departure and difference of latitude into changes in coordinates over a rhumb line. Utilizing mean latitude for the departure conversion yields the arrival position of LAT 23°44'S, LONG 43°07'E after steaming 720 miles on course 058°T.