A room in the shape of a cuboid is shown below. The room has two identical square

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A room in the shape of a cuboid is shown below. The room has two identical square windows and a door with the dimensions given. 

Vladimir wants to decorate the room, including the ceiling, with two coats of paint (he will not paint the floor, windows or door). If each paint pot claims it can cover 60m2 of surface area, how many pots will Vladimir need to buy? Show your working clearly.

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