You are on course 035°T, speed 18.3 knots. At 0719 you see a buoy bearing 036°T at a range of 4.1. If you change course at 0725 to leave the buoy abeam to port at 1.0 mile, at what time will the buoy be abeam?

Correct Answer: Option C — 0732

Calculate the distance traveled between 0719 and 0725. Use the relative motion triangle or the distance-speed-time formula to determine the time required to reach the beam position. The geometry of the approach relative to the buoy's bearing and range confirms the buoy will be abeam at 0732.