You are underway on course 160°T at 10 knots. The current is 210°T at 0.9 knots. What is the course made good?

Correct Answer: Option C — 164°T

Using the vector addition method, combine the ship's velocity vector (160°T at 10 knots) with the current vector (210°T at 0.9 knots). The resultant vector, calculated via trigonometry or a maneuvering board, yields a course made good of 164°T, reflecting the influence of the current on the vessel's track.