You are enroute to assist vessel A. Vessel A is underway at 5.5 knots on course 033°T, and bears 248°T at 64 miles from you. What is the time to intercept if you make 13 knots?

Correct Answer: Option D — 3h 44m

Applying relative motion principles to construct the intercept triangle yields a running time of 3 hours 44 minutes when steaming at 13 knots toward a vessel tracking 033°T at 5.5 knots from an initial bearing of 248°T at 64 miles.