A vessel steams 3312 miles on course 282°T from LAT 34°24'S, LONG 18°18'E. What is the latitude and longitude of the point of arrival by Mercator sailing?

Correct Answer: Option B — LAT 22°55'S, LONG 43°05'W

Mercator sailing requires calculating the difference in latitude and the difference in meridional parts. With a course of 282°T and distance of 3312 miles, the DLat is 689' and the DMP is 735.2. Calculating the DLong results in an arrival position of 22°55'S, 43°05'W.