Question: A painter is considering using a new high-tech paint roller. Yesterday he was able to paint 3 walls in 45 minutes using his old method.

A painter is considering using a new high-tech paint roller. Yesterday he was able to paint 3 walls in 45 minutes using his old method. Today he painted 2 walls of the same size in 20 minutes. Is the painter more productive using the new paint roller?

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