Your vessel is steaming on a course of 140°T at 15 knots. At 1530 a lighthouse bears 200°T. At 1550 it bears 249°T. What is your distance from the lighthouse at 1550?

Correct Answer: Option D — 5.75 miles

Standard piloting techniques from Bowditch involving time, speed, and change in relative bearings allow the navigator to construct a running fix, accurately resolving the distance off at the second bearing as 5.75 miles.