You are steering 246°T, and a light is picked up dead ahead at a distance of 14 miles at 1037. You change course to pass the light 2.5 miles off abeam to port. If you are making 12 knots, what is your ETA at the position 2.5 miles off the light?

Correct Answer: Option C — 1146

The distance to the abeam point is the square root of (14 squared minus 2.5 squared), which is 13.77 miles. At 12 knots, the time required is 13.77/12 multiplied by 60, equaling 69 minutes. Adding 69 minutes to the initial time of 1037 results in an ETA of 1146.