Three workers run a house painting business and always work the same number of hours together.The paint they use requires applying two coats.Each worker paints 200 square feet per hour using a roller or 80 square feet per hour using a brush.If a technological advance provides a paint that only requires one coat,their average labour productivity per hour,as a team,

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Quizplus · Accepted Answer

Since the new paint only requires one coat, the time taken to paint a house will reduce by half. Therefore, the productivity per hour, as a team, will increase. The type of tool used (brush or roller) becomes irrelevant as the productivity is based on the total area covered by the team.

Three Workers Run a House Painting Business and Always Work