What is the displacement of a barge which measures 85' x 46' x 13' and is floating in salt water with a draft of ten feet?

Correct Answer: Option D — 1117 tons

Multiplying barge dimensions (Length 85' x Breadth 46' x Draft 10') gives underwater volume (39,100 cubic feet). Dividing by the salt water conversion factor of 35 cubic feet per long ton yields 1,117 tons displacement.