College Economics
posted by Meg .
Assume that it takes four hours of labor time to paint a room and three hours to sand a floor.If all 24 hours were spent painting, how many rooms could be painted by one worker? If a decision were made to sand two floors, how many painted rooms would have to be given up? ILLISTRATE WITH A PRODUCTION POSSIBILITIES CURVE.

This is a simple algebra problem  actually two problems as you have two situations. However, you might consider that paint has to dry a certain number of hours before a second (usually required) coat should be put on. So ask this another way  if a room takes four hours to paint and five hours to dry before putting on the second coat and the worker takes an hour for meals every six hours, how many rooms could be painted in 24 hours?
Economics is more than just math formulas.