SOLUTION: a certain printer can do a printing job in 3 hours. With a second printer, the same job can be done in 2 hours. how long would it take the second printer to do the same job?

Question 979435: a certain printer can do a printing job in 3 hours. With a second printer, the same job can be done in 2 hours. how long would it take the second printer to do the same job?

Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
First printer's rate,

Second printer's rate,

Together,

1 hr 12 minutes.
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