On 4 December your 1500 ZT DR position is LAT 18°06.0' N, LONG 75°42.0' W. You are on course 020°T at a speed of 15.0 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 1548 running fix.

Correct Answer: Option D — LAT 18°17.3'N, LONG 75°37.7'W

Calculating a running fix involves dead reckoning the vessel's position across the elapsed time between sights. Stearing 020°T at 15.0 knots for 48 minutes from the 1500 DR results in the updated coordinates of LAT 18°17.3'N, LONG 75°37.7'W.