(a) Explain, with reference to moments about the centerline, how the list may be removed. (6)

(b) A ship of 12,250 tonnes displacement, has KM = 8 metres, KB = 3.8 metres, KG = 8 meters and is floating upright. Find the list if a weight of 2 tonnes, already on board, is shifted transversely through a horizontal distance of 12 metres assuming that the ship is wall-sided. (10)