A semisubmersible, with a TCG of 0.5 feet to port, displaces 20,000 long tons. Bulk, weighing 400 long tons, is discharged from P-tanks located 50 feet starboard of the centerline. What is the new TCG?

Correct Answer: Option C — 1.53 feet port of centerline

Transverse moments determine shifting center of gravity. Initial moment: 20,000 tons at 0.5 ft port (-10,000 ft-tons). Discharging 400 tons from 50 ft starboard (+20,000 ft-tons) removes starboard weight, shifting the vessel further port. Net moment (-30,000) divided by final displacement (19,600) yields 1.53 feet port.